Pops15
Platinum Member
- Joined
- Oct 10, 2009
- Messages
- 672
- Location
- IL
- Tractor
- Ford 555 TLB, Caterpillar Motor Grader, Kubota L245, Ford LGT 125, FABTEK aerial platform
I've got a 2000 F250 5.4 that has an intermittent miss. Truck has about 110K on it. I've been chasing the problem for awhile. The thing is it will run fine for weeks at a time, then it will suddenly develop a miss and has very little power under acceleration. If I back off the gas it will smooth out some.
Truck has had recent plugs, boots, one coil, injector cleaner, replaced a few suspicious looking injectors, fuel filter, air filter. There doesn't seem to be any rhyme or reason as to when it will start running badly. Sometimes it will run rough for a day or two then run fine for several weeks. Sometimes it will run bad for weeks then suddenly run fine. I have a scanner but I don't get any reading. The scanner works fine on my '98 Lincoln. Am I looking at a computer problem? I figured if it was a computer problem it wouldn't run at all. Could it be one or more sensors? I cleaned the mass airflow sensor. Didn't make any difference. Any ideas?
Truck has had recent plugs, boots, one coil, injector cleaner, replaced a few suspicious looking injectors, fuel filter, air filter. There doesn't seem to be any rhyme or reason as to when it will start running badly. Sometimes it will run rough for a day or two then run fine for several weeks. Sometimes it will run bad for weeks then suddenly run fine. I have a scanner but I don't get any reading. The scanner works fine on my '98 Lincoln. Am I looking at a computer problem? I figured if it was a computer problem it wouldn't run at all. Could it be one or more sensors? I cleaned the mass airflow sensor. Didn't make any difference. Any ideas?