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my car makes a whistling sound when its on, whether moving or not?
My 1993 Buick Century has begun making a whistling sound. It is a constant monotone, like a boiling tea kettle but not as loud or as high-pitched.
As best I can tell it coming from the rear of the car, or perhaps the middle, on the underside. It is constant regardless of rpms or whether the car is moving or stationary. The only way I can make it change is gets just a little softer if I apply the brakes (the brakes are working fine btw). Anyone have any ideas for me? Thanks a lot!
thanks it is definitely the fuel pump (i listened with a steoscope hose down the fuel tank hole and it was WAY louder)
4 Answers
- 1 decade agoFavorite Answer
fuel pump
open up the gas cap and listen for the same noise
if you can hear it in the tank fill hole but louder it's the fuel pump
- Anonymous1 decade ago
I would check any vaccum lines as the air rushing through them would cause a very annoying whistle
- Anonymous1 decade ago
tiny hole in the exhaust box!?
