Why does my 2006 Chevy Cobalt act like it is going to quit when I am stopped with...

[cory]

...the engine in Idle? My 2006 Cobalt acts like it wants to quit when I am stopped at a light or a stop sign or when I apply the breaks. The RPMs go up and down while I am stopped. Could this be a fuel filter issue?

 

[hunternicholas]

If it does it just once it's normal. If it continually does it whlie sitting there the computer system is "hunting" for the correct idle. If you don't have a Check Engine/Service Engine Soon light then change to a quality grade of gasoline. Shell V-Power and Sunoco Ultra 94 are the best.