Possibilty here could be caused by one of the following below

Oxygen sensor.

Catalytic converter.

Fuel injectors dirty/sticking.

Mass airflow sensor/Airflow meter.

Throttle position sensor.

Crankshaft position sensor

Knock sensor

Manifold absolute pressure sensor.

EGR Valve

Fuel pressure regulator leaking or defective fuel pump.

Fuel contamination.

Foul/defective spark plugs.

Open spark plug wires.

Ignition coil/Coil packs defective.

Incorrect ignition timing.

Cap and rotor.

Note:If it doesn't apply disregard it and keep testing

Answered by rasmataz
68 questions asked

thanks!!

Response from alpha_mike
1 question asked

Just to add to this one do you have any codes?ALso which engine do you have?

Answered by saturntech9 (expert)
23,179 answers provided

i havent run the codes yet, im scheduled for an oil change tomorrow so i will have them look...i know the service engine light comes on, but doesnt stay on...to add to that issue, now it is shifting funny and the traction control went out...when i find out whats wrong with it, ill post it

Response from alpha_mike
1 question asked

and it is a 3.5L V6...thats as much eng info as i know

Response from alpha_mike
1 question asked

Please post the exact the code numbers when you get them not the code descriptions.

Answered by saturntech9 (expert)
23,179 answers provided