1990 Toyota 4Runner Service and Repair Manual

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Covers all 1990 4Runner trims — 2D Utility, 4D Utility ·
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1990 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
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 #10109492

TSB: The purpose of this bulletin is to provide precautions to follow when installing an automatic transmission/transaxle assembly to avoid MIL "ON" shifting issues and/or transmission damage. Use the information in this bulletin when insta

Showing the 8 most recent of 13 technical service bulletins on file with NHTSA.

19970602Component: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITEDCrash reported2 injured1 fatalities

DRIVER HIT THE BRAKES AND ABS BRAKES FAILED TOYOTA TRUCK, 4-RUNNER LOST CONTROL/ROLLED OVER, A BABY AND ADULT DRIVER FELL OUT OF THE CAR, RESULTING IN 2 INJURIES AND A FATALITY. *AK

19951121Component: POWER TRAIN:AXLE ASSEMBLYCrash reported2 injured

CONSUMER WAS DRIVING 40 TO 45 MPH THE REAR PASSENGER SIDE REAR AXLE CAME OFF CAUSING THE TRUCK TO ROLLOVER TRUCK WAS TOTOALED . TT

20060308Component: STEERING:LINKAGES:ROD:RELAY:CONNECTINGCrash reported1 injured

1990 4 RUNNER WAS INVOLVED IN AN ACCIDENT WHICH OCCURRED DUE TO FAULTY STEERING RELAY ROD. *TS THE CONSUMER RECEIVED A RECALL FOR THE STEERING RELAY ROD SEVERAL YEARS AFTER THE COMPONENT HAD ALREADY

19990826Component: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFTCrash reported1 injured

THE REAR AXLE BROKE AT 70MPH, RESULTING IN A COLLISION WHICH CAUSED MINOR INJURIES.*AK *ML

19971119Component: SUSPENSION:FRONTCrash reported1 injured

WHILE DRIVING ABOUT 50 MPH, SWITCHING LANES THE VEHICLE WOBBLED AND SPUN OUT OF CONTROL, CAUSING THE VEHICLE TO ROLLOVER, INJURING THE DRIVER. *AK

Showing the 5 most serious of 95 complaints filed with NHTSA.

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