Skip the auto shop - Our mechanics make house calls

Q: How do I know if my water pump has went out?

asked by on

Dealership says that my water pump is out but I don't believe them so I want to know how I can find out if it's out myself

My car has 73000 miles.
My car has an automatic transmission.

A: Hello, a coolant pump can fail three differ...

Hello, a coolant pump can fail three different ways: leaking, noise, or low to no flow of coolant.

Leaking would be associated with a loss of coolant and needing to add coolant back into the system. This could also be accompanied by an overheating condition.

A noise would involve the bearing assembly that allows the pump to rotate. This could also eventually lead to an overheating condition

No flow would create overheating of the engine fairly quickly. To test for no or low flow, remove a heater hose and check flow rate should have flow rate of a garden hose.

If you need a second opinion on the car or would like to have an independent technician conduct the water pump replacement for you, a certified professional from YourMechanic can come to your car’s location to perform this service.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Malfunction with brake light sensor.

These systems can be tricky. Also on European vehicles they sometimes have more lights than Americans are used to. It is possible that there is a bad connection that is causing this light to come on. However it is also...

Q: Car sputters and shakes below 1500 rpms especially

There is a common problem with this specific year and engine of VW TDI's. The camshaft material is not hardened enough, which leads to abnormal wear of the lobes and damage to the lifters. The fuel injectors are also controlled...

Q: Radiator/coolant

Be sure not to drive the car if it is overheating because overheating can warp the cylinder head and/or engine block causing costly damage. The most common causes of overheating include low coolant level, a faulty thermostat, a plugged radiator,...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...