1991 Toyota 4Runner Repair and Maintenance

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

1991 Toyota 4Runner Problems

Automatic Transmission May Not Shift Correctly at High Mileages

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 Rotor Wear Can Cause Pulsations

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.

Failed Emissions Test Due to Blocked EGR System

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.

See More Problems (15)

1991 Toyota 4Runner Questions

My Toyota will take awhile to take off after warming up for 20-30 mins what could this be? (1 answer)

If I rev the engine it will hesitate and sputter it will do it no matter what gear I'm in and happens everyday

my vehicle has automatic transmission and will not shift into overdrive. (1 answer)

Is it most likely a bad relay fuse, or solanoid switch.
Which holes in diagnosis
block by fuse box do i put wire ends into to check for code number. I have a 3.0
liter v6 3vze engine.

Hi 91 runner I heard you can run a jumper wire from 12v to starter to start (1 answer)

Wondering if that's true and would that then tell you it's a bad starter if it doesn't start the truck? Thank You

See More Questions (48)

1991 Toyota 4Runner Recalls

Toyota Recalls 1990-1998 Trucks Due to Cracked Steering Relay Rod

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.

See More Recalls (1)

1991 Toyota 4Runner Reviews

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.

See More Reviews (3)