1991 Ford F-250 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Ford F-250
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1991 Ford F-250 ProblemsFuel injection pump level sensor may fail
The FIPL (fuel injection pump lever) sensor may fail. When this sensor goes bad, shifting is erratic and the Check Engine Light should illuminate. Proper adjustment of this sensor (when replacing it) is a must or the problem will continue. See service manuals for proper adjustment of the FIPL sensor.
The tachometer sensor may fail; if the tachometer needle jumps around and the transmission has harsh shifts or does not upshift, this sensor should be checked. This sensor is mounted in a cover at the front of the motor.
A ticking noise may develop from the engine due to a warped exhaust manifold. Damaged exhaust manifolds will require replacement to correct this issue.
1991 Ford F-250 QuestionsHave replaced 3 starter solenoids, now stater went out. Changed starter, New solenoid, battrey, cables, fuses & now nothing, dead ? Any ideas what it could be ? (2 answers)
If i let off gas peddle it smooths out.it started back firing real bad now it wont start at all
Started truck to let it warm up. Came out and truck was no longer running. I checked fuel good. Checked spark. And nothing. So I replaced coil. Still no spark. I checked and I have power to coil but no spark. Why?
1991 Ford F-250 RecallsFord Extends Warranty Coverage for 1990-1993 F150-F350 Trucks Fuel Pump/Sender Assembly
Ford has extended the warranty coverage of the fuel pump and sending unit assembly in 1990-1993 F150, F250, and F350 trucks. In some trucks, the check valve may become damaged inside the fuel pump unit. This can cause fuel to travel from one tank to the other, creating an overflow condition. In the presence of an ignition source, a fuel leak may result in a fire. Dealers will repair the fuel pump and sending unit for up to 12 years or 150,000 miles from the original warranty start date.