1991 Toyota 4Runner Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1991 Toyota 4Runner

At higher mileages, (125,000-150,000) the automatic transmission may not shift correctly. This can be caused by the throttle position sensor being out of adjustment or a shift solenoid needing to be replaced. Typically the transmission does not need to be completely overhauled.

Front brake rotors can wear causing a pulsation felt in the brake pedal. Our technicians tell us this condition is best corrected by replacement of the front rotors and brake pads.

The EGR System tends to get restricted or blocked with carbon after 100,000- 125,000 miles which will cause an emissions test failure for NOX. If the EGR system is equipped with an EGR temperature sensor it will trigger a Check Engine Light for improper EGR flow. The repair is to clean out the EGR passages and the EGR Temperature sensor. Our technicians tell this repair is pretty straight forward and takes about 1-1.5 hours. It is also wise to verify the EGR system components i.e. the Transducer, EGR Valve and VSV Solenoid at this time.

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My truck seems to run hot but the temperature gauge works because you can hear it open once the truck warms up. But I'm not sure if it's accurate and recently the engine runs at 150-173°F and the radiator at a constant 174-176°F. So I want to know if that's normal for my truck because...

vehicle stopped running after I turned the corner.
have replaced the radiator, knock sensor, starter, hoses
could it be fuel injectors

Help please

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Toyota is recalling 1990-1995 4Runner, 1990-1995 pickup, and 1993-1998 Toyota T100 trucks because the steering relay rod may crack under stress. This may increase the risk of a crash. Dealers will replace the steering relay rod.

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My Hilux Surf is a incredible! The only problems this vehicle has ever has was a bad head gasket (recalled item & was replaced) and my transmission needed servicing after 208,000km of HEAVY use (rock crawling, mudding, towing and years of skiing trips). The body is sound (NO rust holes), drivetrain like a tank, and the only electrical issues I have is the wiring to my rear window de-fogger ne...

very dependable, bought used w/ 200,000 + miles and drives great any and all problems it has our compliments of the previous owners handi-work

Great Car runs like a beast never broke down yet 230,000 miles and counting only thing ive had to replace was the distributer cap and some spark plugs other then that runs just as good as it did 20+ years ago.

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