1996 Ford F-150 missing at 45 after warm

Tiny
DMBRADLEY2186
  • MEMBER
  • 1996 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 130,000 MILES
When my truck warms up it starts to miss really bad. When I let off the gas it stops and when I speed up it doesn't do it, only when at a constant speed. What could it be. I have done a full tune up, changes fuel and air filter, changed throtaling positional sensor.I don't know what to do. The ford dealer wants to charge me to much money and not telling me whats wrong.
Monday, February 16th, 2009 AT 7:21 PM

2 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Unplug the egr valve and drive truck and see if the skip goes away, its possible its opening fully and causing a lean misfire
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Monday, February 16th, 2009 AT 7:22 PM
Tiny
DMBRADLEY2186
  • MEMBER
  • 2 POSTS
Ill try to do that, if that don't work then ill try something else.
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Tuesday, February 17th, 2009 AT 3:07 PM

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