How To Tell If Water Pump Is Working

How to Diagnose a Faulty Water Pump

The water pump is a component of your car that plays a significant function in the cooling system of the engine. The water pump’s primary function is to cool down the engine with coolant, which helps to ensure that the engine does not overheat as a result. Engine overheating is a highly dangerous condition for your automobile, and it might result in engine failure in the long run. At all costs, it is in your best interests to prevent such an outcome. In order to comprehend how the water pump in the engine’s cooling system operates, you must first grasp how it works.

This pump is responsible for pumping water through the cooling system, which is positioned inside of the engine.

After reaching the desired temperature, the thermostat opens up, allowing the coolant to flow through the radiator hose and into the radiator.

Once inside the radiator, the coolant works to remove the extra heat with the assistance of the radiator, the cooling fan, and even the outside air blowing through the grill of your car to cool it.

A problem with the flow of operation and your engine being overheated indicate that your car’s water pump may be malfunctioning, and it is time to check this possibility.

If coolant does not flow, engine temperatures will rise, and the engine will begin to overheat.

Part 1 of 2: How to tell if a car’s water pump needs replacement.

There are various safe techniques to determine whether or not your car’s water pump needs to be replaced. Step 1: Take a look at your temperature gauge. If your engine is running hot, the temperature indicator on your dashboard will glow. It is possible that a low coolant warning light will appear. You’ll see that your temperature gauge is beginning to rise towards the red zone. Pull over and switch off your engine as soon as possible.

  • Warning: If you notice smoke coming from under the hood, as well as any warning lights illuminated, remain away from the car until it has cooled down to avoid being burnt by hot coolant or other contaminants. All of these are indications of a failed water pump.

Step 2: Keep an ear out for any sounds. Another method of determining whether or not your water pump is malfunctioning is to listen for unusual noises. Strange noises may be heard coming from the engine compartment, and they will sound like groaning, screeching, or squeaking noises in certain cases. You may observe that the volume of these noises increases and decreases in response to the engine’s revolutions per minute (RPM). Step 3: Take the temperature of the air. Not only does the coolant keep your engine running cool, but it also helps to keep your heater blowing hot when the temperature drops.

  • It is impossible for the heater to fulfill its duty of keeping the interior of your car warm if the coolant is not circulated or if there is insufficient coolant to circulate.
  • Step 4: Inspect the pulley on the water pump.
  • Take hold of it and wriggle it back and forth with your gloves on.
  • Step 5: Inspect the area for leaks.
  • When your automobile is left parked for an extended amount of time, you will notice drips or pools of coolant below it.
  • In other cases, leaks might form around a gasket or from the weep hole in the water pump, which serves as both a vent and a cooling port for the pump.

This can be a time-consuming procedure. Having one of YourMechanic’s licensed mobile technicians inspect your vehicle for correct diagnosis is the best course of action if this is the situation with your vehicle.

  • Note: Leaks at the weep hole or at the water pump gasket are often caused by contaminated coolant (or filthy coolant)
  • However, this is not always the case.

Step 6: Check the coolant reservoir for leaks. If you suspect a leak, check the coolant reservoir for signs of damage. It is critical to get your water pump fixed as soon as possible to avoid engine damage from occurring. Preventing major annoyance or permanent damage to your car by paying close attention to it and recognizing the warning signals right away will save you time and money. If you believe that there is a problem with your water pump, contact a trained expert from YourMechanic for assistance.

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Five Signs Your Water Pump Is Failing

The water pump is an extremely important component of your vehicle’s cooling system. It is responsible for drawing coolant from the radiator and pumping it through the engine. As the coolant flows through the engine of your vehicle, truck, or SUV, it takes heat away from the engine components, allowing them to remain cool. Once the coolant returns to the radiator, the radiator fan and outside air assist in lowering the temperature of the coolant before it is pumped through the engine once more.

Here are several indications that your water pump is failing:


A water pump that is dead or dying will be unable to circulate coolant through your vehicle’s engine, resulting in the engine overheating. The higher the temperature of the engine, the greater the likelihood of catastrophic damage, which can include a broken engine block as well as damage to the cylinders, pistons, and head gaskets. If your car is running excessively hot and/or if you notice steam coming out from below the hood, you should not continue driving it.

Coolant Leaks

It is typical to see coolant leaks from the water pump, which is a strong indication that it is time to replace the pump. A set of gaskets and seals hold the coolant in place inside the water pump, preventing it from leaking out. Once these components begin to wear out, become loose, or break, you may see radiator fluid flowing from the front of your vehicle toward the center. The color of the coolant is often green, orange, or red. It’s possible that the orange coolant contains rust.

Corroded Water Pump

Air leaking via a faulty pressure cap, non-compatible or unclean engine coolant, mineral buildup, and simply the passage of time can all cause your vehicle’s water pump to rust and break down. By opening the hood of your automobile, you may be able to notice corrosion or small holes on either the inside or outside of the fuel pump. Then it’s definitely time to repair your vehicle’s water pump, because a corroded or broken water pump cannot function properly.

Whining Noises

The last thing to look for is a high-pitched whining noise coming from the front of your vehicle’s engine, which might indicate that the water pump is failing. The water pump operates on the basis of a pulley or belt, and if the pulley is excessively loose, the water pump will emit a whining sound that some have referred to as “harmonic buzzing.” It is also possible that this noise is produced by worn bearings within the water pump’s motor.

If you believe that your water pump is failing or if you are experiencing another cooling system problem, make your way to J M TransmissionAuto Servicein Tea, SD. As a full-service auto shop, we’re ready to keep your car, truck, or utility vehicle running safely and efficiently.

5 Signs Your Water Pump May Be Failing

The fact that you need to replace your oil and check the oil level in your car on a regular basis to ensure that it runs smoothly is common information, but did you know that the water pump is just as critical to the smooth operation of your automobile as the oil pump? While it may not be as evident as the engine or brakes, your car’s water pump is extremely important in keeping you and your passengers safe on the road. Your car’s engine contains a plethora of components that, while in operation, generate an enormous amount of heat and friction.

The absence of a properly functioning water pump may cause your engine to overheat during the summer and freeze during the winter months.

Maintaining your water pump with the same level of care that you do your vehicle’s oil can help you prevent these types of big and expensive repairs down the road.

5 Symptoms of a Failing Water Pump

It’s critical to get familiar with the telltale indicators of a failing water pump in your home. If you don’t do something, you might not notice the problem until it’s too late. If your water pump malfunctions, you run the danger of causing irreversible damage to your engine, which is a costly issue that should be avoided at all costs. These five indicators might assist you in determining whether it is necessary to bring your vehicle in for an examination and possibly water pump repair.

1. Coolant Leaking

Having a puddle of coolant on the ground where you’ve parked your car is one of the first symptoms that your water pump may be malfunctioning. The pump is comprised of a number of different gaskets and seals, all of which will ultimately dry up, crack, or fail over time. When this occurs, the coolant will leak from the pump’s reservoir. Immediately take your vehicle to a repair shop if you see an orange, green, pink, or blue pool of liquid after pulling out of your driveway after it has been sitting for a long period of time.

2. Rust or Deposit Build-Up

When there is a little leak in the water pump, there will be a progressive buildup of muck or rust on the pump’s internal parts. Use of incompatible coolant or a faulty pressure cap that enables air to enter the system can both result in this condition occurring in the engine. In either case, your pump’s efficiency in moving coolant through the engine will deteriorate, eventually leading to full failure of the system. An excellent routine involves lifting your hood and inspecting the inside of your engine.

You’ll be able to identify issues as they arise, rather than having to wait for the dreaded “check engine” light to illuminate. The water pump in your automobile should be changed if you see any corrosion, pitted spots, or build-up surrounding it. Bring your car in to get it checked out.

3. Noise

Is your automobile making a whining sound as you accelerate? This irritating, high-pitched sound might be created by a loose accessory belt, which could be the source of the problem. Loose belts are frequently the consequence of a misaligned pulley or worn out bearings, which must be repaired or replaced. It’s important to get your car checked out if you hear a whining sound coming from the front of the engine to prevent the possibility of a failing water pump and a much more expensive replacement.

There are various belts in your engine, including a serpentine belt, that can cause catastrophic damage to your engine if they slip, break, or snap.

It will save you from being stranded on the side of the road if you have your belts replaced according to the maintenance plan for your car.

4. Overheating

Is the temperature gauge in your vehicle increasing in temperature? It’s possible that your water pump is on its way out of commission. Overheating your automobile poses a threat to you and other drivers since it increases the likelihood of engine failure. Whenever you detect that your vehicle is overheating, take it to your technician for a check right away. If you find yourself in an automobile emergency, it’s crucial to know what measures to take in order to reduce the danger of injury to yourself and other drivers, as well as to your vehicle.

Pull over, contact for a tow truck, and get your car diagnosed as soon as possible.

5. Steam

In the event that you notice steam coming from beneath your hood, it is a warning that something major has gone wrong with your vehicle. When a water pump breaks fully, it is no longer able to flow coolant through the engine, resulting in the engine overheating as a result. If you notice steam coming from your engine, pull over immediately and contact your technician for assistance. Continuing to drive with an overheated engine can cause significant damage to the engine, which may necessitate a total engine replacement.

What To Do About A Leaking Water Pump

If you see any of the five warning signals listed above, contact your local mechanic to have your car inspected. Being proactive when it comes to automobile maintenance is essential. By paying close attention to your vehicle’s look and performance on a daily basis, you will be able to identify when something needs to be fixed. Preventative maintenance is a far more cost-effective element of automobile ownership than repairs in most cases. You may save time, money, and aggravation if you identify the problem early on.

We’ll do all we can to get you back on the road as fast and safely as we can!

6 Signs You May Have a Bad Water Pump On Your Hands

There are several elements of a car that, when they fail, do not require urgent replacement, such as the transmission. A water pump is not one of the components on this list. Because of the critical role the pump plays in cooling the engine, if it fails to function properly, there will be immediate consequences, including the possibility of complete engine failure.

Although repairing a broken water pump is a time-consuming task, it will spare you from the more difficult task of replacing your engine. Understand the indicators that indicate that you have a faulty water pump on your hands.

Unhealthy Circulation

The water pump circulates coolant through the radiator and around the engine, dissipating heat that has accumulated. Metal pieces that are rapidly moving and closely coupled create a great deal of friction and, as a result, heat. Overheating can result in components that are twisted, melted, fused together, shattered or otherwise structurally damaged (see illustration). The auxiliary drive belt, serpentine belt, or timing belt is typically used to operate the water pump, which is a pulley-driven device.

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An impeller is located within the system, and it is responsible for keeping the system circulating.

Cavitation can also cause the impeller to deteriorate, resulting in the impeller’s inability to effectively pump coolant.


Water pump failure can be detected by a noticeable coolant leak that is directed toward the front end of the car, among other things. If you leave your car parked overnight and observe an orange or green puddle on the ground (depending on the type of coolant you’re using), you should question the pump. However, don’t make the mistake of assuming that a lack of coolant on the ground means you don’t have a water pump leak. The oil dipstick should be checked if the coolant reservoir is running low but there is no obvious coolant leak.

Some Ford Duratec V6 engines, particularly those with a timing chain cover, are susceptible to coolant leaks inside.


Water pump failure can be detected by a considerable coolant leak that is directed toward the front end of the vehicle, among other symptoms. It’s likely that the pump is malfunctioning if the car is left overnight and an orange or green puddle appears on the ground (depending with the coolant used). If there is no coolant on the ground, this does not rule out the possibility of a leak in the water pump. The oil dipstick should be checked if the coolant reservoir is nearly empty but there is no obvious coolant leak.

Ford Duratec V6 engines with timing chain covers that do not seal properly might leak coolant inside.


A slack auxiliary belt will make a whining noise that will become louder as the vehicle accelerates. It may be as easy as tightening the belt, changing the belt, or replacing the belt tensioner to correct the situation. If, on the other hand, you hear a grinding or growling sounds coming from the front of the engine, this suggests a faulty bearing. There are other bearings on the front of the engine that might fail, but in any event, you should take it to a technician as soon as possible to have the problem diagnosed and repaired as soon as possible.


As soon as the pump fails, your engine will begin to overheat. If you haven’t detected any other symptoms of approaching failure, this is one to keep an eye out for. Add coolant immediately if the ” Low Coolant ” light illuminates, and check for a severe leak if the light does not illuminate. If the temperature gauge begins to climb over normal or if the temperature warning light illuminates, pull over and contact a tow truck for assistance. Once the water pumps fail, there is no safe period of time that you can keep the engine running without risking catastrophic damage to the engine.

However, without a pump to circulate the coolant, turning on the heater to cool down an engine with radiator problems would not be effective in this situation. The best course of action is to park it.


Smoke or steam coming from your radiator or from under the hood indicates that your engine is overheating and has likely already sustained significant damage to the internal combustion engine. Pull aside and ask for assistance as soon as possible. Keep your hands away from the engine until it has cooled down before digging about. You’ll be dealing with scalding-hot coolant and other potentially dangerous situations. Apart from being overheated, your cooling system is also under considerable pressure.

  • Near other cases, accessing a broken water pump may need extensive engine disassembly since it is positioned in the front of the engine, behind the fan, or squeezed close to a strut tower.
  • Prevent your engine from being damaged by paying close attention to the warning indications when they appear.
  • Consult with a trained specialist at your local NAPA AUTO PARTS shop for further information on whether you have a faulty water pump.
  • Antifreeze, coolant, cooling system, drive belt, featured, overheated, radiator, radiator fan, serpentine belt, timing belt, water pumpCategoriesMaintenanceTagsantifreeze, coolant, cooling system, drive belt, featured, water pump

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It is likely that your engine has already sustained significant damage if you notice smoke or steam escaping from your radiator or from beneath the hood in general. Bring the vehicle to a complete stop and dial 911 for assistance. Keep your hands away from the engine until it has cooled down before digging around, since you will be dealing with scalding-hot coolant and other potentially dangerous situations. Your cooling system is not just overheated, but it is also under strain. The best course of action is to wait a few hours for everything to settle down before starting a diagnostic.

Replaced components might be quite inconvenient, but the results are well worth the effort.

Take a look at all of the heating and cooling system components that are available on NAPA Online or visit one of our 17,000 NAPA AutoCare facilities for routine maintenance and repairs.

Blair Lampe provided the images used in this post. Antifreeze, coolant, cooling system, drive belt, featured, overheated, radiator, radiator fan, serpentine belt, timing belt, water pumpCategoriesMaintenanceTags antifreeze, coolant, cooling system, drive belt, featured, water pump,

How to Tell if a Water Pump is Bad

When you realize that your water pump has failed and that you must pay for repairs or replacement, it is the last thing you want to happen to you. Or, even worse, experiencing the effects of a faulty water pump while on the road and in the driver’s seat. It’s a good idea to be aware of how to detect whether the water pump is malfunctioning and to inspect and repair it before the relocation, if required. During this lesson, we’ll go over the symptoms and indicators of a failed pump.

Can a Bad Water Pump Cause a Blown Head Gasket?

The water pump, despite the fact that it is buried deep within the engine and that we don’t tend to think about it, is an essential component of the engine and of the vehicle in general. In this case, failure to diagnose and cure the problem might result in irreversible damage to the engine and the vehicle. Failure to repair or replace the malfunctioning water pump on your vehicle in a timely manner may result in the damage to your vehicle becoming more serious over time. As a consequence, you may expect to see scorched pistons, fractured cylinder heads, and even a burst head gasket, which will result in thousands of dollars in repairs, and even more for some of the most costly automobiles on the market today.

How to Tell if a Car’s Water Pump Needs Replacement

Article in PDF format Article in PDF format The water pump in your automobile is an extremely crucial component of your vehicle. It is the component responsible for continuously pumping coolant into your vehicle’s engine to prevent it from overheating. A leak or a defective bearing in your car’s engine might cause significant harm to the engine. Puddles of coolant beneath your car, as well as excessive temperature readings, may indicate that your water pump needs to be repaired or replaced.


  1. 1Allow your automobile to sit overnight in a garage with a clean concrete floor, preferably in the driveway. If it is not feasible to park your automobile indoors on a clean concrete surface, lay a piece of light-colored cardboard below your vehicle, just beneath the motor, to protect it. Please keep in mind that water pumps are more likely to leak when the vehicle engine is running, thus using the engine running as a reference is not the best method for discovering a leak
  2. 2Examine the cardboard the next morning. If it seems to be wet from coolant, you have a leak somewhere. It’s possible that the leak is in your water pump, but other potential sources of leaking coolant include radiator hoses, heater hoses, freeze plugs, gaskets, and the radiator. To restrict the search down even more, consider placing the cardboard exactly below the water pump’s intake valve itself. This is antifreeze, which can be seen as a green liquid on the cardboard. This indicates that you have a coolant leak in some part of your system. Advertisement
  3. s3 Check the pulley on the water pump. The spherical component at the front of your water pump that the belt is wrapped around is where you’ll want to start. Pull on the pulley and try to rock it back and forth. If it appears to be loose, it may be time to replace it since the bearing is beginning to fail
  4. 4pay attention to your vehicle. Start the motor of your automobile when the hood is up. Your water pump bearing may be failing if you hear a low-pitched grinding noise when using the pump. If it’s gone bad, you’ll typically be able to hear it clearly. Your air conditioning compressor, power steering pump, and alternator all have bearings that are similar to each other, so you must be able to concentrate on pinpointing the source of the noise, which is difficult to do while the engine is running
  5. 5Check for leaks around the water pump. A leak can be detected by the presence of drips of water or a little stream. Many water pumps are equipped with a weep hole in front of the seal, which allows water to escape if the seal fails
  6. 6 Keep an eye out to see if your temperature warning light illuminates. Because of a leaking or faulty water pump, the temperature of your car’s engine will rise, resulting in the illumination of the warning light. Check to see whether the low coolant indicator is illuminated. The presence of this indication may indicate that your coolant reservoir is leaking or that your water pump is malfunctioning. Other possibilities include a leak in the cooling system or a clogged radiator. Advertisement

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  • Look for a small hole in the ground
  • This is the weep hole, and it will leak if the water pump is malfunctioning or failing. On a hot day, a pool of water noticed beneath your automobile may not be indicative of a problem with the water pump or cooling system. Consistent use of your vehicle’s air conditioning system results in the formation of condensation. Despite the fact that condensation comes from beneath your automobile, it is quite natural. Some vehicles may have no leakage and no bearing noise, but everything else, such as the fans, belts, hoses, thermostat, radiator, heater core and cap may still be in good operating condition at the time. Apart from when it overheats, it is common to see steam pouring out of the cap, which is due to the fact that the cap is meant to relieve excess pressure as a fail-safe for the other sections. Coolant is corrosive once the additives in it have worn away, and some water pumps include plastic impellers that circulate the coolant (you should change your coolant every three to seven years to avoid engine damage when the additives in your coolant wear away). When the impeller of the water pump wears out, it is no longer able to move coolant around, and your car overheats. In order to put this to the test. Perform a cold start with the radiator cap off
  • You should see some movement of the fluid in the radiator after a few seconds. If this is the case, there is a significant likelihood that the internal water pump blades have been destroyed or that just a tiny portion of them remain. This test, on the other hand, is pointless if you have a thermostat installed in your vehicle, as cooling will not take place until the thermostat is opened at working temperature, and you would surely not want to open the radiator cap at that degree.


  • If your coolant is low and your automobile is currently or has just been running, allow it to cool completely before adding any water or coolant. Addition of cool water when the engine is running hot can cause the engine block to break as a result of the dramatic difference in temperature, converting a minor expenditure into a major expense. Do not fill your car with 100 percent coolant
  • Doing so may cause it to run hot and perhaps overheat. Follow the manufacturer’s recommendations, which are typically 50/50 mixtures, however certain vehicles may accept up to a 70/30 blend. Because the boiling point of pure water is too low for current engines, it should never be used.


About This Article

Summary of the ArticleX Checking for leaks is the most straightforward technique to determine whether or not a car’s water pump needs to be replaced. Place a piece of clean cardboard right below the motor of your automobile after it has been parked on a level surface. Allow the vehicle to sit overnight before examining the cardboard. If the cardboard is damp, it is probable that there is a leak somewhere in the engine. Try to put the cardboard exactly beneath the water pump and look for traces of green liquid on the cardboard, which is generally an indication that antifreeze is leaking from the pump.

If you see any of these signs, you should replace the water pump. Continue reading for more information, including how to check for leaks in the water pump. Did you find this overview to be helpful? The writers of this page have together authored a page that has been read 1,388,643 times.

Did this article help you?

Having a faulty water pump might result in a variety of issues with your automobile. If you’re wondering “how to tell if my water pump is faulty,” it’s likely that you’re already experiencing some of the issues that come with it.

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What does a water pump do?

In order for a car’s cooling system to function properly, the water pump is the primary driving force behind it. All modern automobiles are equipped with a radiator located at the front of the vehicle, which is responsible for cooling the antifreeze in your vehicle. Water pumps are found in most cars and are responsible for drawing coolant from the radiator and pumping it into your engine block, cylinder heads, and any other components that need to be cooled such as an oil cooler, throttle body, and/or turbocharger, if your vehicle is equipped with one.

  • If the water pump in your automobile breaks, the driving power for the coolant is quickly depleted, causing the water in the engine to heat up extremely quickly and your engine to overheat, perhaps causing serious damage.
  • First and foremost, a catastrophic failure of your water pump is possible, but not probable.
  • This form of water pump failure is the most hazardous, despite the fact that it is quite unlikely.
  • A damaged motor belt or engine noise might accompany this situation in your car, but your engine temperature gauge will almost certainly rise swiftly as a result of this.
  • The failure of a bearing in your engine’s water pump is a more likely cause of water pump failure.
  • Due to the fact that your water pump bearing is either a sealed bearing or is lubricated solely by coolant, it has the potential to wear out far more quickly than the oil-lubricated bearings in your engine.
  • Occasionally, you may be able to see the pump pulley or belt swaying when your engine idles in the most extreme situations.

If this is the case, the most straightforward solution is to just replace your water pump.

This might comprise the shaft seal as well as the seal connecting the water pump to the block.

If the shaft seal on your water pump has become worn and is leaking, the most cost-effective solution is to replace the pump entirely.

Significant amounts of stress are placed on the region around your water pump as a result of the heating and cooling of your engine in that area, and it is therefore susceptible to cracking.

You may quickly and simply repair any leaks caused by broken blocks near your water pump by using BlueDevil Radiator and Block Sealer, which is available at most hardware stores.

It is possible to seal the leak in your block without blocking or hurting any other part of your cooling system using BlueDevil Radiator and Block Sealer!

The BlueDevil Radiator and Block Sealer is available for purchase through the banner link provided below. BlueDevil Radiator and Block Sealer may be purchased at any of our participating local auto parts retailers, including the following:

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119 responses to “How to Tell if my Water Pump is Bad”

Automobile Repair Library, Auto Parts, Accessories, Tools, Manuals and Books, Car BLOG, Links, and more. Index byLarry Carley (c)2019 All rights reserved. Located at the core of the cooling system is the water pump. Coolant is circulated between the engine and radiator by the pump, which helps to prevent the engine from overheating. The impeller, which is made of metal or plastic and has blades, is located inside the pump and is responsible for pushing water through it. The impeller is installed on a shaft that is supported by the pump housing and is equipped with a bearing and seal assembly to ensure that the pump operates properly.


There are two main ways in which water pumps fail: either the shaft seal fails and allows water to flow out, or the impeller within fails and comes free, or the blades erode and wear down (which is more of a problem with pumps that have plastic impellers). When a water pump begins to leak, coolant will begin to flow out of the cooling system. If the leak is not identified and repaired, the loss of coolant will eventually cause the engine to overheat and shut down. It is possible that the driver will not notice anything incorrect until the temperature warning light illuminates.

If an overheated engine is run for an extended period of time, severe engine damage can occur.

In the event that coolant is leaking out of the water pump shaft or vent hole, the water pump should be replaced.


Water pump shaft seals prevent coolant from seeping past the bearing and into the water pump housing. In the cooling system, rust, silt, and other impurities can induce seal wear since they circulate with the coolant in the system. The pump shaft and bearings are also subjected to continual strain, not only from the drive belt or timing belt, but also from the fan on vehicles equipped with mechanical cooling fans installed on the pump shaft or bearings. Eventually, the shaft seal and/or bearing on the water pump wear down, causing the pump to begin to leak.

It is fairly uncommon for leaks to appear after 50,000 or 60,000 miles on the odometer. In case the pump shaft exhibits any obvious wobbling or if the bearings are producing any noise, the pump should be changed even if it is not leaking (because it will be in the near future!)


Occasionally, a water pump can fail internally owing to extreme corrosion wearing away the impeller blades, or the impeller will come loose from its mounting on the shaft, or the shaft itself may break due to metal fatigue (caused by flexing due to an out-of-balance fan). Plastic impellers are used in many late-model automobiles (Chrysler in particular) to enhance cooling efficiency while also reducing cavitation (drag). However, if the coolant is unclean or includes abrasives, the plastic can become damaged very rapidly.

When the engine is hot and idling, one technique to check for a damaged water pump is to pinch the top radiator line while the engine is running.

If you do not see much coolant moving through the hose when you crank the engine, it is possible that the pump is malfunctioning.


Replacement water pumps are available in a broad range of forms and sizes, as well as a number of shaft lengths, and on some engines, more than one kind of pump may be installed. Finding the correct pump requires matching not only the year, make, model, and engine, but also the VIN or casting number, which is often required. If at all feasible, compare the new pump to the old pump to ensure that it is the proper pump for the job. Some replacement castings are designed with additional outlets, mounting bosses, or bolt holes to allow them to be utilized on a wider range of engine applications, which helps to consolidate applications.

  • If there aren’t enough outlets and mounting bosses, this is unacceptable.
  • Remove the radiator from service.
  • This should be done when the engine is COLD.
  • Antifreeze that has been used may normally be flushed down the toilet.
  • It is also harmful to both animals and humans in large quantities.
  • Disconnect the fan belt from the motor.
  • Make a mental note of how the belt is routed BEFORE you remove it so that you can restore it appropriately later (draw a picture if there is not a belt decal under the hood that shows how the belt is routed around the pulleys).

Clear the area of anything else that is in the way.



Before you can install the new pump, it is necessary to clean and dry the mounting surface.

Install the gasket on the new water pump, sealing it using gasket sealant or adhesive if necessary, and then attach the new water pump to the engine with bolts.

7.Refill the water in the cooling system.

Many cooling systems contain vent valves that may be opened during a refill to enable air to escape.

A few more notes on the cooling system; if the cooling system has rust or sediment, it is recommended that the radiator and block be cleaned and flushed BEFORE removing the old pump in order to prevent the new pump from being damaged.

Clean and disinfect the cooling system before refilling it with a 50/50 mixture of fresh antifreeze and distilled water.

If your vehicle has a mechanical fan that is mounted on the pump and is controlled by a fan clutch, the fan clutch should be changed at the same time as the mechanical fan.

It is possible that a sliding fan clutch will result in less radiator cooling and consequent engine overheating.

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Finding Identifying and Repairing Coolant Leaks Cleaning and Maintaining Your Cooling System How To Make A Diagnosis A Thermostat Should Be Replaced Your Thermocouple Temperature Warning Lamp is illuminated. What Should You Do in This Situation? Overheating in the engine: What causes it Cures Electric Cooling Fan Problems to Look Out For Troubleshoot A cooling fan is used to cool the room. Clutch Service with a belthose Belts are a good example of this (Serpentine) Belt tensioners are a type of tensioner that is used to tension a belt.

Is There a Universal Coolant?

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How Do I Know If My Car’s Water Pump Needs to Be Replaced?

A properly operating water pump is required in order for the engine to perform correctly in every car and truck. The water pump circulates coolant via the radiator and into the engine, which is driven by the alternator. When it fails, it is vital to perform an emergency water pump auto repair in order to restore your vehicle to drivable condition as soon as possible. When the engine and radiator temperatures rise over a tolerable level, the water pump is in charge of keeping them there. You must attend to any maintenance issues that your water pump may require on an as-needed basis in order to keep your vehicle in dependable and safe working condition.

Troubleshooting Your Vehicle’s Water Pump Problem

There are a variety of ways that may be used to discover water pump issues. If you hear peculiar sounds coming from the pump, you may want to investigate the belt and pulley, as well as the thermostat, to name a few possibilities. Water temperature warning lights may illuminate in your vehicle if the coolant circulation in your vehicle is insufficient, which may signal that you require a water pump repair or replacement. Alternatively, one of a variety of additional tests may bring you one step closer to identifying a problem with the pump.

  • Coolant leaks
  • Overheating of the engine
  • Slow leaks of coolant
  • Steam coming from the engine
  • A faulty water pump belt
  • A problem with the circulation system

Leaking Coolant

Keep an eye out for symptoms of coolant leakage. Check the region beneath the front bumper of your car. Keep an eye out for any puddles of red, orange, or green liquid. Coolant leaks are frequently the result of problems with the water pump itself.

Engine Overheating

The water pump’s primary function is to circulate coolant throughout the engine block and heads of the vehicle. When a water pump fails, it is no longer able to circulate engine coolant in the manner in which it was intended. As a result of the coolant not being circulated as effectively as it should be to keep the engine cool, the temperature in the engine increases to dangerous levels, and the engine becomes overheated.

An overheated engine is a major condition that requires rapid care in order to avoid potentially serious engine damage, such as burned-up pistons and split cylinder heads.

Slow Leaks of Coolant

Slow leaks might result in a puddle of water around the water pump’s base. In the region around the pump, look for any signs of engine coolant leaks. Look for corrosion in the surrounding region as well. When fluid is seeping from the water pump, rust is not unusual around the pump. Gradual leaks seldom cause engine failures in a short period of time, but they can cause coolant levels to decrease significantly. When the engine is operating, this limits the quantity of oil available to protect the water pump’s functioning parts, which are always in motion, and therefore increases the rate at which the pump wears out.

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Steam from Engine

A properly functioning water pump will allow your engine to maintain a consistent temperature range. If you detect steam pouring from under your car’s hood, this signals that your engine has become excessively overheated as a result of insufficient coolant circulation and that you should seek immediate assistance. In the event that you notice steam pouring from your engine, turn it off immediately. Do not ignore the problem, and do not attempt to drive the automobile any farther toward your objective, even if it is only a small distance from where you started.

Driving with an engine that is excessively hot is exceedingly dangerous as well as incredibly inefficient.

Loose Water Pump Belt

A properly functioning water pump will allow your engine to maintain a stable temperature range. Steam flowing from under your car’s hood signals that your engine has become excessively overheated as a result of insufficient coolant circulation and that you should seek immediate assistance. In the event that you notice steam emerging from your engine, shut it off immediately. Do not ignore the problem, and do not attempt to drive the automobile any farther toward your objective, even if it is only a short distance from your starting point.

In addition to being exceedingly dangerous, driving with an overheated engine is extremely risky.

Circulation Problem

The water pump in your car is in charge of keeping the coolant flowing through your engine and radiator. Water pumps and fan belts are frequently used in combination with one another, and both feature impellers that circulate water throughout the engine’s interior. The primary function of this system is to regulate engine temperature and avoid the development of excessive heat in the engine compartment. Overheating your engine can create catastrophic problems, such as damaged pistons, a fracture in the block and/or heads, the throwing of a rod because the oil fails, and other severe effects to your engine’s internals and externals.

Ace Auto Repair, West Jordan Utah

We are experts in the repair of all brands and models of automobiles, including cars, trucks, vans, and SUVs. Our mechanics are ASE Certified, which means they get on-going training to keep up with the newest high-tech systems in the most recent model automobiles of all makes and models. We provide reasonable vehicle repair services, and we provide written quotes for all of our work. Ace is a privately held company that is family-owned and run. We take great satisfaction in providing our clients across the greater Salt Lake area with prompt, dependable, polite, and honest service.

Call Ace Auto Repair in West Jordan, UT at (801) 803-6016 for answers to your concerns or to arrange an appointment for a diagnostic and/or repair. You may also use our online contact form to request an appointment at your convenience. Obtain a PDF version of this document.

Don’t Ignore these 5 Symptoms of Water Pump Problems

The combination of combustion and friction generates a great quantity of heat in your automobile’s engine. This requires a continual supply of coolant, which is provided by the water pump, in order to assist in the dissipation of all that heat energy. The breakdown or malfunction of the pump might result in overheating, poor performance of the vehicle, and even the cessation of your journey. Furthermore, because maintaining engine coolant is so critical, any problems that are left unaddressed might result in complete engine failure.

What does the Water Pump Do?

Originally, automobiles were cooled down by circulating air through the engine, which helped to carry away the heat produced during operation. As engine performance rose, this method became ineffective, prompting engineers to develop the water cooling technology that is now used by practically all automobiles. When it comes to safeguarding your engine, it is just as crucial as the oil lubrication system. It draws its power from the drive belt, which in turn powers the pump.

What are the Consequences of a Failed Water Pump?

If the pump malfunctions, this can result in difficulties with the engine overheating, which can result in damage to the engine’s internal workings. It is possible that you will encounter some serious issues, such as broken cylinder heads, pushed head gaskets, or even burned pistons, if the engine temperature continues to rise at an alarming rate. What is the worst situation? During a road trip, your engine might catch fire, placing your life and the lives of other road users in serious danger.

How to tell there are Problems with Your Pump…

The following signs and symptoms will provide you with an indication of the health of your pump. In order to get the greatest results, it is critical to address any issues as soon as they arise – the structural integrity and longevity of your engine are both at stake.

Coolant Leaks and Puddles Coming from the Front of the Car

A general notion of the health of your pump may be obtained by looking at the symptoms listed below. As we’ve indicated, it’s critical to address any issues as soon as possible because the structural integrity and longevity of your engine are both at risk if you do not.

Corrosion to the Pump from Rust, Debris and Air Pockets

Deposits such as calcium in the water might build up around the pump as a result of little leaks that occur over time. Particle buildups can be caused by tainted coolant mixes or even by using the incorrect coolant; a faulty pressure cap might allow excessive air to enter the system. Solution: Inspect the pump for signs of wear, and look for tiny holes in the metal or cavities in the mounting surface that have formed as a consequence of the effect of air bubbles in the coolant mixture on the pump.

Overheating Engine and Warped Components

It is possible for the engine to overheat, resulting in difficulties with the cooling system. The reason for this is that if the pump is not operating properly, it will be unable to adequately disperse the heat generated by the engine moving and the combustion process. In addition, you may see irregularly rising engine temperatures through your dashboard temperature indicator. Solution: Damaged, deformed, melted, fused, or simply broken elements in the engine that are suffering from damage before the typical service intervals are a solid indication that the engine needs to be serviced.

Typically, you’ll be dealing with issues with the internal impeller, which will necessitate the replacement of the water pump.

High Pitched, Harmonic Whining Noises

When there is a problem with the pulley positioning, a high pitched sound will typically emanate from the front of the vehicle. When a loose pulley is dragged around by the pump, it can produce an abuzzing or whining sound that is fairly high in pitch. The cause is unknown. Most of the time, this is caused by improper installation of the pulley or difficulties with the bearings within the pump. Sadly, after the bearings in the pump are worn out, the item is no longer functional, and you’ll have to look for a replacement water pump.

Steam Escaping from the Car’s Radiator

In most cases, the presence of steam indicates that the engine’s cooling system is not adequately channeling heat away from it. As previously stated, coolant is required to prevent the engine from overheating by flowing water to the radiator, which then dissipates the heat into the surrounding environment. Steam pouring from the engine when you’re driving down the highway or coming to a complete stop indicates that the coolant has been overheated to the point where it is evaporating. Solution: As soon as you notice steam, put your automobile to a complete stop right away.

Get on the phone with the local emergency mechanic and describe all of the symptoms to him or her in detail.

Prolonging the Lifespan of your Pump

To be sure, if you don’t want to deal with pump failure and replacement, taking better care of your pump is an excellent place to begin. The following suggestions can assist you in extending the life of your part:

  • Always change the coolant at the recommended service intervals, as dirt and debris can accumulate in the fluid, causing damage to the pump and other components over time.
  • Maintaining the proper tension on the belt that links the pump to the drive system is critical. Ascertain that the belt is tensioned to the proper level and that it is aligned with all of the connecting pulleys. Tension issues can cause damage to the pump shaft, bearing and seal if they are not addressed promptly.
  • Overheating: Take urgent action to rectify any issues with extreme temperatures. Failure to do so may result in damage to the pump’s internal workings as well as its seals.
  • Purchase a high-quality pump to ensure that your system continues to operate for a longer period of time. Pumps that are less expensive may offer immediate savings, but they are far more likely to require maintenance sooner rather than later.
  • Replace the timing belt at the same time as you replace the pump to ensure proper operation. It is possible that problems with the previous pump resulted in coolant getting into touch with the timing belt, compromising the integrity of the rubber
  • However, this is unlikely.

Replacing a Water Pump

Do you want to replace the water pump in your home? Prepare yourself for a difficult job that, due to the location of the part, is best left to a professional auto repair. Ideally, you should have the pump replaced every 60K to 90K miles, and it can frequently be done at the same time as the timing belt because both parts require the removal of the timing cover to be accessed correctly.

Five Signs You Need a New Water Pump

The water pump in your vehicle, truck, or SUV pumps coolant through the motor to keep your engine from overheating and breaking down. In order to trap heat, coolant is drained from the radiator and circulated throughout the engine. It is then forced back into the radiator where it is cooled by the cooling system’s fan as well as by the ambient air temperature. Because if the water pump fails, the coolant will cease to circulate, Stringer Auto Repair, LLC recommends that you search for the following five indicators of a failing water pump before driving your vehicle further.

Leaking Coolant

The water pump is most likely to blame for a coolant leak originating from the front and center of the vehicle. The water pump contains a large number of gaskets and seals, and these components might harden and shatter over time as a result of the high pressure.

Once they do, the water pump will begin to leak coolant into the floor of your garage. Coolant is often green or red in color, so look for it to help you identify the fluid.

Rust and Corrosion

When it comes to rust and corrosion, the passage of time does not work in the water pump’s favor either. Using the improper coolant in your vehicle, truck, or SUV can cause deposits to build up on the radiator. These deposits accumulate and cause corrosion. Rust corrodes the pump, causing it to rupture and leak. It can also cause the pressure cap’s seal to fail, resulting in coolant leaking out the top.

Whining Noises

If you hear whining sounds coming from the front of your vehicle’s engine, it is possible that the water pump pulley belt is malfunctioning. A whine, scream, or buzzing sound will be heard if the belt is too loose. The belt, on the other hand, is not the source of the problem. In most cases, it is worn water pump assembly bearings that allow the pulley to become loose, which results in the noise.

Overheating Engine

As previously stated, if the water pump is not properly circulating coolant throughout the engine, your vehicle’s engine will overheat and fail to function. It is critical that the problem is resolved as soon as possible. The cylinders, head gasket, and pistons might all suffer catastrophic damage if you don’t take precautions. If you knew how much it would cost to remedy those problems, you wouldn’t want to know.

Radiator Steam

Last but not least, your radiator should never steam. There should never be any steam coming out from below the front of your hood when you are driving. If you do, pull over to a safe location as soon as possible and turn off your automobile, truck, or SUV. It is possible that your car is overheating if it is producing steam. As previously noted, overheating may result in costly and unneeded engine damage. If your car is overheating, come see us atStringer Auto Repair, LLC in Johnstown, OH. We can help.

We would be delighted to examine your pump.

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