2CarPros - Car Questions & Answers

1990 Ford F-250 Repair Question


Topics covered: Fuel pressure, Battery, Fuel line.
Mileage: 167,000 miles.

Asked on December 30, 2012

Ford F-250 Fuel pressure Problem

Truck was fine one day then all of a sudden it would die down when you gave it gas. In neutral it revs up fine but not when in gear. I replaced the throttle pos., veh. speed, and map sensors. fuel pressure is good as are all vacuum lines. tried disconnecting battery too. had the diagnostic scan done and said system good.
Avatar Asked by fredluongo

Answer

Replied on December 30, 2012

what is the exact fuel pressure??

check the back pressure on the cat converter??

Roy

Tiny Answered by ASEMaster6371 (expert)
24,825 answers provided
Replied on December 30, 2012

don't know exact fuel pressure but when I relieved the pressure on the fuel line manifold it squirted out hard. was going to cut out the converter but could it go all of a sudden

Tiny Response from fredluongo
1 question asked
Replied on December 30, 2012

if the guts broke loose, it would go to the outlet and cause a huge restriction.

get a fuel pressure gauge and verify the pressure on the fuel pump

roy

Tiny Answered by ASEMaster6371 (expert)
24,825 answers provided

Replied on December 30, 2012

the trouble all began after I had gotten on it, maybe that blew it out. but I it ran fine a couple of times. that wouldn't happen if it was restricted. no other possibilities?

Tiny Response from fredluongo
1 question asked
Replied on December 30, 2012

lets eliminate one by one

roy

Tiny Answered by ASEMaster6371 (expert)
24,825 answers provided
Replied on January 2, 2013

it was a clogged converter. I gutted it. Runs better than ever, now.Thanx

Tiny Response from fredluongo
1 question asked