Q: Could my water pump be going bad if my car hasn't over heated yet?

asked by on

So my car has been making a grinding noise from near the water pump and ac compressor area but today I noticed it was smoking a little but the car wasn't overheating at all. The smoke also kind of smelled like burning coolant. I bought a new AC compressor for about 300 dollars but what if it's not that and it's actually my water pump? What's the best way to determine which of the two it is exactly so I can get my money back if it's not the compressor?

Hi, thanks for writing in. First look to see if there is any coolant leaks at the water pump. I use a sound stethoscope to listen near each pulley to see if the noise can be isolated. Then I would remove the serpentine belt and turn or wiggle each pulley and component to see if the problem can be felt. You should be able to find the cause this way. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Could my water pump be going bad if my car hasn't over heated yet?

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: Truck cranks, but doesn't start, even though battery new.

Hello, for a car to start it needs 4 things, air, fuel, spark and the engine computer. First thing to check is the inertia switch and make sure the button is pushed down. See your owner manual for location. Check...

Q: Whining when accelerating and slight grinding when letting off the gas.

Hi, thanks for writing in. I don't wish to 2nd-guess, but your symptom description suggests that either the differential or the transmission may have been run low on fluid, but was refilled after a couple of weeks? Not clear on...

Q: Truck running rough. Shaking while idling and seems to shake more when accelerating.

A faulty oxygen sensor can certainly cause an engine to run rough and cause a bit of shaking due to the imbalance in the air/fuel load. As you may know the [oxygen sensors]((https://www.yourmechanic.com/services/oxygen-sensor-replacement) which are part of your emissions system...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.