CAR HAS ROUGH IDLE AND P0401 ENGINE CODE

  • Tiny
  • Jheuermann
  • 2004 Mercury Mountaineer
  • 120,000 miles

Car has rough idle and p0401 engine code.

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Monday, December 3rd, 2012 AT 1:41 PM

1 Reply

  • Tiny
  • Docfixit
  • Expert
  • 18,993 posts

Most likely vacuum leak in DPFE suggest get professional help

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Tuesday, December 4th, 2012 AT 8:46 PM

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