2000 pontiac grand am se 2.4l high RPM / low speed gain / shifting issues / feels like it's going to turn off when on any shift exept Neutral? help...

Asked by Mar 07, 2014 at 01:42 AM about the 2000 Pontiac Grand Am SE

Question type: Maintenance & Repair

I have a 2000 Pontiac grand am se 2.4l engine, when I turn the car on the RPM are high and the engine sounds like if I'm stepping on gas pedal. Also. the shifting is bad when driving. When I also driving it feels lek the car is going to turn off but it doesn't. This only happens when I have it on any driving shift exept neutral. Can someone help with some advise or knowledge PLEASE!!!!

2 Answers

33,545

The first thing I would do is take it to a shop and have them preform a transmission flush. That will get all the build up and gunk out of your system. Have your idle air control valve cleaned. A plugged valve will mess with your RPM's. If problem still persists after tranny flush and idle air control valve cleaning, replace your throttle position sensor.

1 out of 1 people think this is helpful.
20

The hi revving sounds like it could be a throttle position sensor, but the other symptoms suggests a possible vacuum leak. There are so many possibilities now with these computer controlled engines. May also be a mass air flow sensor. Find a good mechanic you can trust and let him help you make a diagnosis.

1 out of 1 people think this is helpful.

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