1999 Ford F-150 engine

Tiny
FABIAN67
  • MEMBER
  • 1999 FORD F-150
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 10,000 MILES
My truck sounds like it has a miss and it idles rough as soon as it is started
Sunday, August 29th, 2010 AT 3:43 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,901 POSTS
Has the check engine light come on? When was the last tune up? What size V8 do you have? And finally have you checked fuel pressure and for vacuum leaks?
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Monday, August 30th, 2010 AT 8:09 PM
Tiny
FABIAN67
  • MEMBER
  • 2 POSTS
Yes tune up was just done and no check engine light came on and fuel pump pressure is down by 10
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Monday, August 30th, 2010 AT 8:21 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,901 POSTS
The fuel pressure could be causing the problem. Have you checked for vacuum leaks?
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Tuesday, August 31st, 2010 AT 9:35 PM

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