Buzzing noise, front driver's side

KATHEEK77

MEMBER
2008 CHEVROLET COBALT
52,000 MILES

While standing outside of my car with the car running, I noticed a buzzing noise coming from the front wheel area. I took it to the dealership, they stated it was low on transmission fluid, and they'd found a leak in the output shaft seal, and replaced that.

I'm still hearing the buzzing noise. I took it back, and they said that the noise is not the same noise, that it's probably normal, and probably just a pump (I can't remember which pump). Is this true? If so, which pump? Or should I take it back again? (It's a closed system, so, I can't check the transmission fluid myself to see if it's low).

5 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

There is a secondary air pump but it should only be on for about 30 seconds when cold.

I would return to the dealership as they charged you for a repair that did not fix the problem.

Roy

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Monday, May 28th, 2012 AT 10:55 PM

KATHEEK77

MEMBER
8 POSTS

This noise is there constantly, as far as I can tell. With the initial problem, the buzzing would only start after the car had been warmed up for a bit. If it was cold, there was not buzzing (at first). Now, this buzzing is there whether the car is cold or hot.

It's not a loud buzzing; I only noticed it initially because I'd left the car running in park while I dropped a letter in the postal box. But, I don't have to be right down to the wheel to hear it, either.

It was "fixed" under warranty.