Truck runs rich | Ford Explorer Forums

  • Register Today It's free!

Truck runs rich

Niksplorer

New Member
Joined
January 5, 2003
Messages
7
Reaction score
0
City, State
California Bay area
Year, Model & Trim Level
92 Explorer
Took a trip to Washington the past week. I averaged 11 mpg. this sucks. The truck runs fine on straight roads but when you go up a steep grade and floor it, it boggs down severely and actually decelerates. I did all the tune up stuff and still ran rich. No CEL comes on so IM at a loss, some one told me it might be the fuel press. reg. but i dont know. I did replace the O2 and still no change. please help
 






Yup, probably the FPR which stuck open.
 






Do you have access to a fuel pressure gauge?
 






Back
Top