Mechanics

WHY DOES MY CAR START TO JERK WHEN I DRIVE IT.

1999 Pontiac Grand Prix • 218,000 miles

It does it while im driving no matter if im driving in town or on the highway or even the interstate, it mostly does it when I go up hill but it will also do it while im driving on a flat straight road. It also does it when I accelerate to, it doesnt consistantly do it but it will do it a couple of times while im driving, I changed all the fluids but it still does it.

Can any one help me with this?
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Importtuner
May 25, 2012.




Do you have a check engine light and when was last tune-up?

Have the exhaust system checked for restriction.Also go herehttp://www.2carpros.com/articles/engine-hesitates and http://www.2carpros.com/articles/engine-surges
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Rasmataz
May 25, 2012.
Will it shake when its idling

Djcl
May 25, 2012.
The check engine light is on and the last tune up was 3 months ago.

It doesnt shake while idling.

Tiny
Importtuner
May 25, 2012.
CEL On-scan the computer for code/s and get back if any with the exact code number not description of problem

Rasmataz
May 25, 2012.

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