Q: Noisy bearings in the water pump that has no leaks

asked by on

What causes noise bearings in the water pump that doesn't leak? What is the average lifetime of the car's water pump in miles?

The bearings inside of the water pump are sealed from the outside air by a rubber seal. They are also sealed from the inside water by a rubber seal. If they weren’t, the water would get on the bearing and then rust and fall apart. So the reason they make noise is because, generally, if it happens too soon, it is just a cheaply manufactured water pump.

I’ve had Toyotas that have gone 200,000 miles and still had the original water pump. Also, I’ve seen cars like Chrysler that have had water pump wear out after 40-50,000 miles. Most of it has to do with the design of the engine.

Now, of course, you’d want to change the antifreeze regularly like you are supposed to. When I was a kid, that was every 3 years or every 36,000 miles because it wasn’t that good. It was the old green stuff. But today, they have a long-life antifreeze. Some of it is 7 years or 150,000 miles.

So buy the longest extended life antifreeze as you can. That way, when you change it, you don’t have to worry about the water pump going out because you are not getting dirty fluid that gets under seal, which then eats the seal off and the coolant gets into the bearings and eats them up. There is no average life time, because there are so many different designs out there, but if you take care of them like that, you are going to get the most lifetime you can.

If the noise gets progressively worse, you may want to have the sound inspected and diagnosed by a certified mechanic. A technician from YourMechanic can come to your car’s location to listen to the sound and let you know what needs to be done.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Noisy bearings in the water pump that has no leaks

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: Changed the power steering pump and tensioner but I still have a clicking noise when the car is running.

Hi there. Before changing anything else, remove the serpentine belt and start the engine to see if the noise goes away. If it does, then it definitely is coming from somewhere on the drive belt path. Investigate the pulleys and...

Q: Keep burning out ac clutches

The clutch is burning up due to slip of the clutch overheating the clutch and melting the rubber. The reason it is slipping is the compressor locking up at the higher RPMs. You will need to reclaim the A/C refrigerant...

Q: My front drive wheel is making noise and when I break to stop the front of the car sways downward...there is a chirping/clicking noise

Hi there. I would really need to know what kind of car this is to be able to help you with this. From what you are explaining, it sounds like you either have a loose caliper or a brake pad...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...