1991 Ford E-150 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Ford E-150
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1991 Ford E-150 ProblemsExcessive Vibration Felt in Vehicle while Driving - Fluid Leaks from Rear of Transmission
This concern relates to vehicles equipped with the E4OD and 4R100 automatic transmissions. Fluid leaks from the rear of the transmission and excessive vibration felt in the vehicle while driving can be caused by a lack of lubrication to the rear of the transmission and rear seal failure. The extension housing (rear portion of transmission) can lose lubrication if the fluid supply hole becomes clogged. This leads to rear seal failure from lack of lubrication, and can cause bearing failure in the extension housing. The extension housing and gasket should be replaced and verify the fluid supply hole is clear of debris.
The engine may have a misfire, hesitation, and/or run roughly – notably after a service and/or ignition wire replacement. If after recent ignition wire replacement, the cause can be misrouted ignition wires. The wires from the distributor to the valve cover must be routed correctly to avoid interference and induction crossfire. Verify all clips are used to secure and separate ignition wires.
The front end may make a rattle noise over bumps. There may be handling issues, and play in the front wheels on inspection. If there is up and down movement on the front wheels while the lower control arms are being supported, inspect the upper and lower ball joints for excessive play. These are prone to failure from moisture entry and lack of lubrication. The ball joints should be replaced as needed.
1991 Ford E-150 QuestionsAir does not blow out of the vents or the floor of the heater duct system. (1 answer)
The air will blow out on the windshield for the defroster. Are there vacuum lines which control this?
Replaced the fuel pump in the front tank. replaced the ECM computer. Pulled the code 542 and the tank switch is reading fine. Truck still isn't getting fuel
Replaced the ignition coil and still same no spark.ado you think the ignition module need to be replace.By the way does the ignition module supply the ignition coil with the power?