SPONSORED LINKS

1999 Ford F-250 Bank 1 bank 2 to lean

Tiny
DAN SCHWAB
  • MEMBER
  • 1999 FORD F-250
  • V8
  • 4WD
  • AUTOMATIC
  • 102,000 MILES
Bank1 and bank2 to lean is my problem and it idles high when I first start the truck and it idles up and down after it idles down I changed the throdle postioning sensor and I was told to clean my maf sensor nothing helped if any one has a sugestion I would appreciate it thanks
SPONSORED LINKS
Wednesday, August 25th, 2010 AT 4:45 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lean fuel condition could be caused by one of the following below:

1. Vacuum leaks
2. EGR and PCV valve.
3. Low fuel pressure.
4. Dirty fuel injectors.
5. Mass Air Flow Sensor.
6. Oxygen Sensor.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Wednesday, August 25th, 2010 AT 5:54 PM

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