2009 Chevrolet Malibu

Asked by Feb 28, 2019 at 10:50 AM about the 2009 Chevrolet Malibu LTZ FWD

Question type: Maintenance & Repair

Just recently got my cars ignition coils
changed thinking that would have been the
cause for my car bucking, misfiring, idling
rough, and so and so. Well it’s still doing the
same thing and the bad ignition coils is not
the only thing that was bad. Mechanic said it
could be a bad Throttle Body Position
Sensor? Anybody else had this problem with
their Maibu’s?

2 Answers


Could be electrical or fuel related. Misfiring spark plugs cause a lag that feels jerky. A lack of proper fuel pressure from a faulty fuel pump or component can do the same. Might be a defect in the Throttle Position Sensor, as your mechanic said, or a dirty Mass Airflow Sensor. Might be dirty fuel injectors. Just have the mechanic diagnose this then fix it.

1 people found this helpful.

Okay. And I have a bad ignition could that be a problem as well? Stop lights are the worst!

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