Could this be a water pump issue?

DAVENOOB

MEMBER
2013 CHEVROLET IMPALA
3.6L
V6
AUTOMATIC
160,000 MILES

The other day my car overheated because someone loosened my radiator cap. Didn't completely run out of fluid but was hot. Now when I accelerate, I hear what sounds like a fan or something banging against something. Could this be the impeller? It only makes the sound when accelerating and is a clicking sound. Thanks

Wednesday, February 19th, 2025 AT 12:10 PM

3 Replies

CANNON1349

MECHANIC
748 POSTS

Hello, this vehicle does not have a fan that rides on the water pump. However it could still be related with the belt system as you are revving the engine. Can you provide a video for us to listen? If you have a friend to help you might could pinpoint if the sound is in fact coming from the belt side or the front of the car.

Hope this helps,
William

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Wednesday, February 19th, 2025 AT 4:29 PM

DAVENOOB

MEMBER
213 POSTS

Hello, yes, I know there is no belt powered fan I was just mentioning that for a sound reference. Doesn't this fine with a metal impeller in the water pump? Maybe from the car overheating it messed something up? Drove the car 150 Miles today and it ran a little under temperature. I will try and get a recording, it mostly does it as accelerating in motion.
Ps sorry if I came off a bit like an ahole at first that wasn't my intention.

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Wednesday, February 19th, 2025 AT 8:45 PM

CANNON1349

MECHANIC
748 POSTS

If the car overheated significantly, it is possible that the engine suffered some internal damage/warpage. I have seen engines retain a knock or valve noise after overheating. We can help you better with a video whenever you get the chance.

Thanks,
William

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Thursday, February 20th, 2025 AT 4:29 AM