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2005 Chevrolet Cobalt Repair Question


Topics covered: Noise, Engine, Engine performance.
Mileage: No information provided.

Asked on May 9, 2010

2005 Chevy Cobalt Low power

Engine Performance problem
2005 Chevy Cobalt 6 cyl Front Wheel Drive Automatic 100000 miles

As I excelarate the car makes a humming noise and dies down when I come to a start. I noticed the car does not put out the power it used to and labors to get up to 65 miles an hour on the highway
Avatar Asked by marklori

Answer

Replied on May 10, 2010

Hi there,

In a case like this it is always best to do the simple things first, start with a full tune and scan for any unresolved fault codes, check all belts and pulleys for worn components re the humming noise, i am presuming that this noise is constant with engine speed?

Mark (mhpautos)

Tiny Answered by mhpautos (expert)
26,882 answers provided