engine jerks when starting out

Asked by Feb 21, 2010 at 12:35 PM about the 2007 Ford Explorer Ironman Edition

Question type: Maintenance & Repair

Irregardless of whether the engine is warm or not, when I first accelerate on to the street the engine
bucks and jerks for several seconds and then smooths out. It will be fine until the engine is shut off,
like in a parking lot, and then restarted. It will do the buck/jerk thing again; then it's fine.

2 Answers

75

Sounds like either a IAC or an ignition coil pack. Do you have a check engine light on? if so, is it flashing?

Thanks for the reponse. No, the check engine light doesn't come on, or flash.

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