Skip the auto shop - Our mechanics make house calls

Q: Trying to determine if water pump is going bad.

asked by on

I had a major puddle after letting the vehicle run idle for about 15-20 minutes. The temp gauge did rise a little but never ran hot. when cool I checked the radiator and reservoir both were very low. I filled with antifreeze and over a two week period the fluid level decrease but the temp gauge continues to register normal with little movement. I placed a drip pan underneath the truck and there was antifreeze present but when I look around the water pump housing I can't tell if the fluid is coming from there. I can't see any leaks around the hoses and I replaced the radiator a month ago.

My car has 151650 miles.
My car has an automatic transmission.

A: Hi there. This appears to be a possible wat...

Hi there. This appears to be a possible water pump issue. The pump or one of the bypass hoses could have a leak that occurs once the system is pressurized and why you are finding coolant after sitting with the pan underneath the vehicle. A cooling system pressure test will uncover the source of the leak. YourMechanic has several available technicians that can assist you with a cooling system leak inspection and water pump replacement.

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・Save up to 30%

Get a quote

What others are asking

Q: Steering has gotten harder and now the car groans

Depending on when and which the parts you had replaced, there may have been multiple recalls pertaining to your steering system. The newest OEM campaign 14772, dated February 5th 2015, is to replace a torque sensor if it was not...

Q: Engine revving, backfiring, cannot accelerate past 40 mph - 1990 Chevrolet G30

The poor performance and backfiring through the intake you mention are signs of a "lean" condition - not enough fuel for the amount of air flowing through the engine. You may have a vacuum leak or Idle Air Control valve...

Q: Is my fuel pump bad?

This means your fuel pump is coming on like it should. The pump will cycle on for a few seconds and then turn off if you just turn the key to on. This should happen each time you cycle the...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...