1991 Toyota 4Runner Service and Repair Manual

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Factory-Grade Data

1991 Toyota 4Runner service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications, torque values, and reference data
  • Electrical diagnostics with full wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
  • Diagnostic trouble codes and troubleshooting flow
  • Maintenance schedules and fluid capacities

Trims covered

  • 2D Utility, Automatic
  • 2D Utility, Standard
  • 4D Utility, Automatic
  • 4D Utility, Standard
  • 4D Utility

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Maintenance & Lubrication
  • Specifications
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Diagnostic Trouble Codes
  • Technical Service Bulletins
  • Wiring Diagrams

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Vehicle Safety Data

1991 Toyota 4Runner Recalls & Complaints

NHTSA #05V38900006/09/2005Component: STEERING:LINKAGES:ROD:RELAY:CONNECTING

ON CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES, IF THE STEERING WHEEL IS REPEATEDLY TURNED UNDER CERTAIN CONDITIONS WHERE HIGH STEERING EFFORT AND POWER ASSIST ARE REQUIRED, FOR INSTANCE, WHEN FU

Consequence

IF THE VEHICLE IS CONTINUED TO BE OPERATED IN THIS CONDITION, THE RELAY ROD MAY FRACTURE, INCREASING

Remedy

DEALERS WILL REPLACE THE STEERING RELAY ROD. THE RECALL BEGAN OCTOBER 5, 2005. OWNERS MAY CONTACT

TSB #10244113

TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2023 model year vehicles may be available provided the re

TSB #10207946

POL: This consolidated Tire Warranty Guide contains the complete warranty terms for all brands of ground and spare tires currently in use by Toyota. This information must be kept near the point of vehicle sale and be available to any custom

TSB #10197473

Product general information.

TSB #10197476

Replacement vin plates.

TSB #10188913

TSB: Replacement certification labels (the vinyl label installed on the driver door or door post) and VIN plates (the metal plate riveted to dashboard) (see Figure 1) for most 1979 ? 2021 model year vehicles may be available provided the re

TSB #10174890

TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin Nos. PG021-88, PG015-89, PG0015-90, PG002-91, PG002-93, PG005-97, PG007-01, PG007-07, PG006-01, PG004-97, T-SB-0144-08, and T-SB-0304-17. The af

TSB #10174891

TSB: OBSOLETE NOTICE April 07, 2020: This bulletin is now obsolete. Please see T-SB-0032-20. Replacement Certification Labels and VIN Plates

TSB #10153239

Dealer Package: 12/18/2018 The Program Details section has been updated. SPECIAL POLICY ADJUSTMENT FOR 1988 - EARLY 1990 TRUCK & 4RUNNER WITH 3VZ?E V6 ENGINES AND SPECIAL SERVICE CAMPAIGN (V06) FOR 1990 - EARLY 1995 TRUCK, 4RUNNER & T100 WI

Showing the 8 most recent of 28 technical service bulletins on file with NHTSA.

20031001Component: STEERING:LINKAGES:KNUCKLE:SPINDLE:ARMCrash reported3 injured

MY DAUGHTER WITH TWO GRANDDAUGHTERS WERE DRIVING IN A 91 TOYOTA 4 RUNNER ON A WELL MAINTAINED LOG ROAD WHEN THEY LOST STEERING AND WENT OVER A 30 FT CLIFF. THE STEERING KNUCKLE BROKE THE TILT STEERIN

20000804Component: TIRESCrash reported1 injured

PE00 020; CONSUMER WAS TRAVELING 65MPH ON THE HIGHWAY AND RIGHT REAR TIRE EXPLODED. CONSUMER FELT A VIBRATION COMING FROM STEERING. LOST CONTROL, VEHICLE SLID AND WENT INTO AN ENBANKMENT. *AK

20060209Component: STEERING:LINKAGES:ROD:RELAY:CONNECTINGCrash reported

1991 TOYOTA 4RUNNER STEERING FAILED WHEN TURNING WHEEL. *TS ***NO ANSWER REQUIRED*** THE CONSUMER RECEIVED A RECALL NOTICE REGARDING THE STEERING LINKAGES TWO MONTHS AFTER THE ACCIDENT. *JB *NM

20170927Component: WHEELS

BACK IN AUGUST 2016 I PURCHASED AND INSTALLED 4 NEW TIRES, I CLEANED AND PAINTED WHEELS BEFORE INSTALLING 4 NEW SLIME TIRE VALVES #TR 415 SLIME PART# 20261 I PURCHASED THESE VALVES AT WALMART IN SOMER

20151204Component: SERVICE BRAKES

WHILE DRIVING IN THE STREET AT 40 MPH, IT ACCELERATES FOR NO REASON. I COULD NOT STOP, THE BRAKE PUT HARD, DID NOT RESPOND TO ANY CHANGE AND ENGINE SPEED INCREASED TO MORE THAN 5000. I HAD TO TURN IT

Showing the 5 most serious of 55 complaints filed with NHTSA.

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