2000 sunfire revs up and down when below 2000 rpm????

Asked by May 01, 2011 at 01:52 PM about the 2000 Pontiac Sunfire GT Coupe

Question type: Maintenance & Repair

i have a 2000 sunfire that revs up and down when below 2000 rpms.  ive changed the intake manifold gasket, injector o rings, IAC valve, and the map sensor. and still no change any ideas??? thanks

7 Answers

loping idle is a symptom of plug wires.

4 out of 4 people think this is helpful.

the car doesnt miss fire at all tho.

They usually don't at higher RPMS.

the car has a 2.4 liter engine so would it be the electronics under the cover on top of the engine since it doesnt have plug wires??? thanks

You'll have to test each coil plug for resistance. I sent you instructions in a message.

1 out of 1 people think this is helpful.

ok sounds gud thanks

The nut that answered this question meant to send it to another question oppps

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