Engine Performance problem
1998 Saturn SC1 4 cyl Front Wheel Drive Automatic 127000 miles
I have a problem that has stumped the so called car experts I know. Whenever my car is idling or going up a hill or basically under load, the RPMs jump all over the place and the car shakes. This will only happen when the car is in drive or reverse. Park and neutral don't have the problem. Also, it isn't as bad when the engine is cold. I've already replaced the spark plugs and wires and got the injectors cleaned out. These didn't seem to have any effect (Although I did need to have it done anyways). Now I'm wondering what my next step should be because I don't want to waste more money just tracking down the problem. The check engine light isn't on and I suspect transmission problems as I've had them in the past with this car.
Friday, November 20th, 2009 AT 11:03 AM