SPONSORED LINKS

2000 Ford F-150 Lean Bank 1

Tiny
1985DST
  • MEMBER
  • 2000 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 106,000 MILES
DUal Filter relocation kit Throttle body spacer dual exhaust w/pipe k&N intake JET chip, under drive kit, lower temp thermostat.(5.4L n/a)

thats what I have heres whats going on. My truck seems to be running well but ever couple hundred mile of reseting the check engine light it will come on again. I have a seperate filter for the valve cover breather and the extra vaccume spot for that is just t'd in with some vaccum line that goes behind the engine. I cant tell whats going on. I cant think of what would keep doing it and most the time it comes on during a start up. I drove 115miles today 70-80mph straight no problem. I go to wal-mart come back out start the truck BAM! Like. Please Help Me its a pet peave to have Check engine lights on for me.

Thanks
Dean
SPONSORED LINKS
Tuesday, September 23rd, 2008 AT 10:33 PM

1 Reply

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
First check the pcv line where it hooks to the intake, they fail and collapse causing a vacuum leak and the lean code. Could also be the MAF sensor, the K&N filters put a fine mist of oil on them and can cause premature failure. Try getting a MAF cleaner to see if it helps. Also try using a littel carb cleaner to spray around the intake to see if you can find any other vacuum leaks.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, September 24th, 2008 AT 7:58 AM

Please login or register to post a reply.

Related Engine Lean Content

How To Fix an Engine Backfire
VIDEO
How To Fix an Engine Backfire
Instructional repair video
Lean Exhaust
GUIDE
Lean Exhaust
Common Misconception: When an engine misfires, the cylinder runs lean, not rich, this is because the air to fuel ratio favors air by 14x. Therefore, an engine must be...
VIEW MORE

Sponsored links