Runs rough in Morning till it warms up.

Tiny
TRKYDODGER
  • MEMBER
  • 1997 MERCURY MARQUIS
  • 110,000 MILES
Runs very rough in morning till it warms up. As soon as it warms up it seems like something kicks in all of a sudden and it runs fine.
Sunday, September 18th, 2011 AT 12:10 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,645 POSTS
It could be many things. Check fuel pump pressure when it's cold to see if it is within spec. Check for tune up. Also, if the check engine light is on, have the computer scanned to see if there are any trouble codes. They will direct you to a problem. Most parts stores will scan for free. Also, check for vacuum leaks.
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Monday, September 19th, 2011 AT 1:43 AM

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