Updated at: 17-08-2022 - By: Lucas

We typically overlook the water pump when maintaining our vehicles. It circulates coolant throughout the engine, ensuring that it remains at a constant temperature.

A typical source of automotive troubles used to be water pumps, but they are now considerably more reliable. Thanks to advancements in water pump design and construction, overheating is a thing of the past. A malfunctioning water pump might result in serious engine damage.

But what are the signs of a faulty water pump?

We’re about to find out, so buckle up!

What Does a Water Pump Do?

Can A Bad Water Pump Cause Loss Of Power

In a closed system, a water pump is used to move water from point A to point B. In a car, the water pump circulates coolant to ensure that the engine does not overheat. The crankshaft drives the water pump, which is placed near the radiator in the front of the engine.

A housing, impeller, and shaft make up a water pump. Cast iron or aluminum is used for the housing, and brass or plastic is used for the impeller. Steel is used to construct the shaft. Attached to the shaft, the impeller spins rapidly. The input and outlet ports on the water pump are used to draw and discharge coolant, respectively. When the impeller spins, it forces coolant out of the radiator and into the system, where it is drawn in by the higher velocity.

Engine cooling is ensured by the water pump, which pumps the coolant through the engine to keep it at a constant temperature. Overheating can do a lot of damage to an engine if the water pump isn’t working properly.

How Long Does a Water Pump Last?

Can A Bad Water Pump Cause Loss Of Power-2

There are a few things you need to know about automotive water pumps in order to get the most out of them. For example, the lifespan of your brakes will differ based on your car’s make and model. In order to get the most out of your car’s water pump, there are a few general guidelines to follow.

Remember that a car’s water pump is vulnerable to wear and strain. There will be an increase in the amount of liquid that can be moved by the pump over time as it loses its efficiency. Your engine may overheat as a result, which can lead to a variety of issues.

So, how long is the life expectancy of a car’s water pump?

There are a number of variables that can influence the answer to that question. The water pump in your car should be replaced every 100,000 miles or so as a general rule of thumb. A new water pump may be necessary when approaching 100,000 miles, so keep this in mind when scheduling your next auto maintenance appointment.

5 Bad Water Pump Symptoms

1.  Bad Water Pump Sounds

Having a faulty water pump is one of the most frustrating aspects of driving. Good cars with bad pumps look dreadful, and older cars with bad pumps appear to be a total loss. Even if you’re getting frequent checkups from your technician, it’s still a good idea to be aware of the signs of a bad water pump.

A screeching noise is one of the most prevalent signs of a damaged water pump. If found early enough, this problem can be fixed with a simple lubricating fix.

What Does a Bad Water Pump Sound Like?

High-pitched whining noises that get louder as you go faster could be an indication that your water pump needs to be replaced. If you hear this noise, it’s because the pulley or bearings are loose or worn out, and a loose belt is the source of it. When you hear a loud noise, take your car to the mechanic right away because there are numerous bearings in your engine that can fail and generate noise.

2.  Coolant Leaks

Leaks are another common sign of a faulty water pump. The seals around the pump or the hoses that connect the pump to the engine can cause leaks to develop. Your automobile is at risk of more damage or breakdown if there are leaks, so it’s crucial to get them fixed straight once if you find them.

Also, keep in mind that your radiator or expansion tank may be the source of a leak. There is no need to be anything dangerous about it, as it can merely be condensation from your AC unit.

3.  Steam From the Radiator

Any time you see steam coming from your radiator, it’s a warning that your engine is overheating and could be in danger of breaking down completely.

It’s imperative that you call a tow truck as soon as you see any steam or smoke coming from your engine compartment. When you drive with an overheated engine, you run the risk of serious injury or death, as well as expensive engine repairs. So, if you notice this sign, don’t hesitate to call a tow truck.

Remember that overheating may be an indication of a more serious radiator problem.

4.  Engine Overheating

Your engine is overheating if your engine temperature gauge shows a high or excessive value.

It’s possible that this is the result of a faulty water pump. If you notice any of these symptoms, you should have your car checked out by a mechanic as soon as possible to rule out a malfunctioning water pump.

Overheating, loss of power, and coolant leakage are all signs that the water pump in your vehicle needs to be replaced.

5.  Performance Problems

You may want to inspect the water pump if you’re having issues with your vehicle’s performance and are concerned. An engine that overheats or has poor acceleration can be caused by a defective water pump.

A higher-than-normal temperature measurement on your dashboard or an increase in your car’s fuel consumption are other signs of trouble.

A Bad Waterpump Can Lead to a Blown Gasket

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Having a faulty water pump in your automobile could cost you a lot in the long run. There is a lot of money involved in repairing a blown head gasket. Pistons can be burnt and cylinder heads can be shattered as a result of a defective water pump. The sooner you address any issues with your water pump, the better. Your vehicle may be beyond repair if you don’t do this.

If your water pump begins to fail, what can you do?

As a general rule, a mechanic can typically fix anything for you. You can, however, replace it yourself if you’re feeling daring. In order to succeed, you must exercise caution and thoroughness.

Replacement of a water pump can be done by anyone who is diligent and knows what they are doing. You can, however, take it to a mechanic if you’re not confident in doing it yourself.


What Does a Water Pump Look Like?

Light silver is the most frequent color because it’s usually constructed of iron or aluminum. The size varies from automobile to car, although it’s usually small to medium.

The impeller, which can be made of metal or plastic, is a simple device on the inside. To avoid breakage and a shorter lifespan, stay away from the plastic ones.

Where Is The Water Pump Located?

Although the exact location of the water pump varies from model to model, it is almost always linked to the engine through a drive belt. In order to keep the engine running cool, it circulates coolant (water and antifreeze). Because the crankshaft powers the water pump, it spins at the same rate as the engine.

What Should I Do If My Car Starts Overheating?

If your car begins to overheat, you need to take immediate action. First and foremost, you should find a safe place to stop and turn off the engine. To avoid any more injury, exit the vehicle and wait for it to cool down.

Check the radiator fluid levels and add extra if necessary once it has cooled. Additionally, you may want to take your automobile to the shop to get it checked out. Attempting to drive an overheated vehicle can result in more harm. Consult a mechanic if you’re unsure what to do. They’ll be able to have your automobile up and running again in no time thanks to their expertise. ‚Äč


Your car’s water pump serves a vital role. Water pump noises aren’t all that common in modern cars, but ignoring them for too long could lead to major issues. Even when the symptoms are modest, such as strange engine noises when the car is idle, it might be difficult to determine if the automobile has a broken water pump.

In most cases, an overheating car will show indicators of a faulty water pump when the vehicle is already damaged. Bring your car in for a checkup as soon as you notice any of the signs of a damaged water pump outlined in the article.