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2001 Ford F-150 emmisssions

Tiny
SABRES1981
  • MEMBER
  • 2001 FORD F-150
  • 4 CYL
  • 4WD
  • MANUAL
  • 70,000 MILES
I have a check engine light that keeps coming on. First it has I was running to lean have replaced 02 sensors air intake sensor and now egr valve. I clear the codes and the light keeps coming back on any suggestion on what it could be
Monday, November 16th, 2009 AT 4:45 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
If the same code keeps coming up, chances are you have a vacuum leak somewhere. It could be a vacuum hose, intake gasket.

When more air is allowed into the system, the engine will run lean.

Let me know what you find or if you have other questions.

Joe
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Monday, November 16th, 2009 AT 9:25 PM

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