Mechanics

HIGH RPM FLUCTUATION

2003 Chevrolet Cavalier • 4 cylinder 2WD Automatic • 92,500 miles

I have a 2003 Chevy Cavalier. While in park and pressing the accelerator gradually, the rpms fluctuate after reaching 4500 rpms. Once the fluctuating starts, it drops to 4000 then back to 4500 rpm over and over again and will not exceed 4500 rpm no matter how much the accelerator is depressed. Rpm does not fluctuate at any point less than 4000 rpm. A mechanic told me to change out the idle control but unfortunately the problem still exists. What suggestions does anyone have? Thanks
Avatar
Bohair
August 13, 2011.



Go to this link for more information: http://www.2carpros.com/articles/engine-surges

Rasmataz
Aug 13, 2011.
That is normal. The car's computer is programmed to prevent the engine from over-revving.

Tiny
Danlesabre
Aug 13, 2011.
Thank you for the help

Tiny
Bohair
Aug 13, 2011.
Happy we could help.

Rivermikerat
Sep 21, 2011.