GRAN MARQUIS

  • Tiny
  • rubydeeis40
  • 1999 Mercury Marquis
  • V8
  • 131,000 miles

Hello,
My 99 mercury marquis just started do this. I turn it over and it starts but runs very roughly then dies. I go to start it again and it turns over but doesnt start, then I go to start it again and it starts. Then it is ok till I go to start it again. Any ideas? Fuel filter? Fuel pump? If I go to a auto parts place can they diagnose this on a device? Thank you

Friday, July 29th, 2011 AT 9:17 PM

2 Answers

  • Tiny
  • rasmataz
  • Member

Try cleaning the idle air control valve, EGR and PCV valves and see what happens

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Friday, July 29th, 2011 AT 9:20 PM
  • Tiny
  • Wrenchtech
  • Expert
  • 19,541 posts

The auto parts store can't diagnose anything. The can read stored trouble codes but that is not a diagnostic and they often can't even do that right.

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Friday, July 29th, 2011 AT 9:50 PM

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