Annoying electrical motor hum - Chevy Cobalt SS Forum : Chevrolet Cobalt SS Forums
 
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post #1 of 3 (permalink) Old 01-26-2010, 08:12 PM Thread Starter
 
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Annoying electrical motor hum

I have had my Cobalt SS since January last year, and from day one I have had an annoying electrical motor hum coming from the rear of the vehicle when the engine is running. Has anyone else had this problem. I am not sure but maybe I just have a really loud fuel pump or something? Very Strange.
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post #2 of 3 (permalink) Old 01-27-2010, 09:43 AM
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I have an electrical hum from the rear but it is coming out of the speakers. I was told that I need to increase the size of my ground wire. I think it's a different problem than yours.
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post #3 of 3 (permalink) Old 01-27-2010, 10:34 AM
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Most likely it is the fuel pump. I had mine checked by dealer and they said it was a similar sound with all Cobalts (not just TC). Also, the pumps work a little harder in the winter and tend to make a little more noise. Mine is now documented at the dealer, so if it becomes a problem in the future I should have less trouble getting it fixed. It does not seem to be a problem, just annoying!
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