Common Problems, Issues, Recalls, and Reliability

  • A Cosmetic Crack May Develop on the Liftgate

    A cosmetic crack may develop on the plastic liftgate trim panel. Ford has released a service procedure to replace the applique without damage the the liftgate glass.

  • Heater Stuck on Hottest Setting Due to Broken Heater Blend Door

    A failed heater blend door or actuator can cause the temperature control for the HVAC system to stop working. A clicking sound from the dash area would commonly indicate an actuator fault. If the heater gets stuck on the hottest setting, the heater blend door may be broken requiring replacement of the heater box to repair the issue.

  • Rough Idle and Stalling

    The Ford Explorer is known for a rough idle , engine stalling, loss of power, and misfires, accompanied by the check engine light .

    The intake manifold O-ring gaskets commonly leak, which creates a large vacuum leak. This vacuum leak causes unmetered air to enter the engine, and the fuel system becomes insufficient to compensate for the large amount of air reaching the engine.

    Replacing the intake manifold gaskets corrects this concern.

  • Front Brake Caliper Pins Can Corrode and Cause Brakes to Stick

    The front brakes may stick, bind, or grab. This can happen when the front brake caliper pins become corroded. Cleaning or replacing the caliper pins will be necessary to correct this problem.

  • Rear Window Wiper May Not Fully Contact Rear Window

    The rear window wiper may not fully contact the rear window. Our technicians tell us that replacing both the wiper blade and wiper arm will generally correct this issue.

  • O-ring seals in AC couplings may leak/condensors may crack

    The O-ring seals in the AC couplings can develop leaks. The condenser can also crack and leak, which is sometimes misdiagnosed as a leaking coupling. The condenser cracks out of sight, under the radiator support, so it looks like the coupler is leaking. Leak testing with fluorescent dye will help locate the exact source of the leak.

  • Noise Over Bumps Due to Radius Arm Bushing Wear

    The radius arm bushing may wear, causing a clunking or popping noise when driving over bumps. To repair, the bushings need to be replaced. Depending on the severity of the wear, the brackets may also need replacement. Driving with worn bushings will shorten tire life and cause tire cupping (uneven tire wear).

  • Updated Differential Clutch Kit Available if Rear End Noise is Heard

    If a noise from the rear end is heard when going around turns or after driving at highway speed for an extended period, this could be caused by a failing deferential clutch kit. An updated differential clutch kit available.

  • Problem With Idle Air Bypass Valve May Cause Engine Performance Problems

    If you experience difficulty starting the engine when cold, stalling at idle, or hesitations during acceleration, it may be the idle air bypass valve . This valve helps the vehicle idle steady when the accelerator pedal is not pressed.

  • Change Power Steering Fluid to Avoid Steering Pump/Gearbox Problems

    Failure to change the power steering fluid can cause the fluid to become gray with metal particles. The contaminated fluid can damage the power steering pump resulting in a growling noise when the wheel is turned; the damaged pump will require replacement to eliminate the noise.. Life of the power steering gearbox and pump will be shortened if the fluid is not serviced regularly.

1991 Questions and Answers

Related Questions

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  • Ford Explorer Power Window

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  • Ford Explorer How Do I Replace The Upper Door Hinge,on The Driver...

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  • Ford Explorer Rpm Gauge

    1991 FORD EXPLORER, 4WD, MANUAL, 350, 000 MILES

    related to interior, instrument-cluster, gauges, tachometer

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  • Ford Explorer Catalytic Converter

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    related to exhaust, catalytic-converter

    How can I tell if the catalytic converter is going bad or is bad? What are signs? @media(max-width: 960px) { .adt { display: none;padding:0; } } Friday, May 18th, 201..

  • Ford Explorer Engine Light Turned On

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    related to warning-lights, check-engine-light

    Check engine light on. It runs good, starts good. What are causes for this alert all in a sudden? @media(max-width: 960px) { .adt { display: none;padding:0; } } Mond..

  • Ford Explorer 1991 Ford Explorer

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    related to general, storage

    My Explorer runs fine and idles very smoothly. Up until recently, it has started the first time, every time, as soon as I turned the key. Recently it is taking longer and longer to start. Somet..

  • Ford Explorer 1991 Ford Explorer

    1991 FORD EXPLORER

    related to fuel-system, fuel-pump, relay, location

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  • Ford Explorer 1991 Ford Explorer

    1991 FORD EXPLORER

    related to general, used-car-advice

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  • Ford Explorer 1991 Ford Explorer Anti Lock Break Light

    1991 FORD EXPLORER, 6 CYL, 4WD, AUTOMATIC, 229, 000 MILES

    related to warning-lights, abs-light

    I have a quick question our anti lock brake light stays on all the time this just started about 2-weeks ago the brakes work fine and are good no noises just light stays on what should I do and how d..

  • Ford Explorer 1991 Ford Explorer Chirping Noise

    1991 FORD EXPLORER, 6 CYL, 4WD, AUTOMATIC, 20, 000 MILES

    related to general, noises, chirp

    I just got my truck out of the shop, they put a new alternator in. When I started it, it sounded like there were a whole nest of birds chirping under my hood. I took it back and they said it mus..

  • Ford Explorer 1991 Ford Explorer Engine Oil In Water

    1991 FORD EXPLORER, 6 CYL, 4WD, AUTOMATIC, 215, 000 MILES

    related to engine-cooling, oil-in-coolant

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  • Ford Explorer 1991 Ford Explorer Fuel Pump

    1991 FORD EXPLORER

    related to fuel-system, fuel-pump

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  • Ford Explorer 1991 Ford Explorer Fuel Pump And Pressure

    1991 FORD EXPLORER

    related to fuel-system, fuel-pressure

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  • Ford Explorer 1991 Ford Explorer Help Replaced Fuel Injectors And...

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    related to fuel-system, fuel-injector, replace-remove

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  • Ford Explorer 1991 Ford Explorer How To Fix Power Window's

    1991 FORD EXPLORER, 6 CYL, 2WD, AUTOMATIC, 137, 000 MILES

    related to body, window, not-working

    MY driverside power window will not go up or down when I press the button. The passenger window works just fine. So is there a way to make the driverside window work too? @media(max-width: 960px..

  • Ford Explorer 1991 Ford Explorer I Have No Spark Need Some Help

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    related to ignition, no-spark

    My 91 ford exsplorer was being driven when everything shut off and wouldent start now I have it at my school trying to fix it in auto class it has no spark I have tested my icm my coil pack and my c..

  • Ford Explorer 1991 Ford Explorer Ignigation Coil

    1991 FORD EXPLORER, 6 CYL, 2WD, AUTOMATIC, 30, 000 MILES

    related to ignition, coil, replace-remove

    My igniaton coil needs to be replaced, will this fix the cylindors that are missisng? @media(max-width: 960px) { .adt { display: none;padding:0; } } Thursday, March 19th, 2009 AT 3:35..

  • Ford Explorer 1991 Ford Explorer Power Steering

    1991 FORD EXPLORER, 4 CYL, 2WD, AUTOMATIC, 126, 000 MILES

    related to steering, symptoms, noise

    I have a 91 ford explorer and I woke up this morning and go outside and see a puddle under my truck. I start it and it makes a lound humming noise and I look and my power steering pump was low so I ..

  • Ford Explorer 1991 Ford Explorer Rims

    1991 FORD EXPLORER

    related to tires, rim

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  • Ford Explorer 1991 Ford Explorer - Where To Plug In A Code Reader

    1991 FORD EXPLORER

    related to warning-lights, check-engine-light

    I purchased a code reader for my 1991 Ford Explorer XLT and can't seem to find where to plug it in. Can someone describe where to plug it in. A picture or diagram would be very helpful. Thanks ..

  • Ford Explorer Fuel Rail Connector Removal

    1991 FORD EXPLORER, 4.0L, 6 CYL, 200, 000 MILES

    related to fuel-system, fuel-rail, replace-remove

    Fuel line connector connects to the fuel rail cannot get it off. It is not a clip the bottom piece turns top piece cannot get it to disengage. @media(max-width: 960px) { .adt { display: none;pad..

  • Ford Explorer Headlight Change

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    related to exterior-light, headlight, replace

    I had to take battery out for headlight change. I put negative cable on first, now when I put headlights on, the radio lights go off. Id I connect something wrong or is this another issue? Thanks..

  • Ford Explorer No Power To The Radio (new Radio Installation)

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    related to interior, radio, replace-remove

    Was installing a new radio but there is no power going through the radio wires. I cannot afford for someone to do it so I am hoping you guys can help me. Is there a fuse or a short? Because some of..

1991 Maintenance and Repair