why does my 2009 lincoln mks will die while sitting idle

Asked by Randy Jul 09, 2013 at 06:49 PM about the Lincoln MKX

Question type: Maintenance & Repair

once at a traffic light and once in a bank drive through.  i took it to the dealer, and they see nothing wrong.  diagnostics show nothing?  What gives?

3 Answers

migration_judge_roy answered 11 years ago

the PCV (positive crankcase ventillation) valve is cheap and would cause this~....for a start~ the TPS (throttle position sensor) is a trouble item there IS an idle air control valve too---look and see if this one is garbaged up~....for a start~

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migration_fordtech57... answered 11 years ago

Is there a Iac on a 2009? These are common for a vac leak.ck with local Ford dealer might be a TSB or a recall on cleaning throttle body and reprogramming pcm.hope this helps.

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