1988 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
- Base, Automatic
- Base, Standard
- SR5, Automatic
- SR5, Standard
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
IMPROPER ROUTING OF THE FUEL HOSE COULD CAUSE SOME FUEL HOSES TO HAVE INADEQUATE CLEARANCE TO THE EGR PIPE.
HEAT FROM THE EGR COULD CAUSE THE HOSE TO CRACK ANDRESULT IN FUEL LEAKAGE.
REROUTE FUEL HOSE TO ENSURE PROPER CLEARANCE AND REPLACE HOSE, IF NECESSARY.
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
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
Product general information.
Replacement vin plates.
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: 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: OBSOLETE NOTICE April 07, 2020: This bulletin is now obsolete. Please see T-SB-0032-20. Replacement Certification Labels and VIN Plates
SUBJECT REGARDING CYLINDER HEAD INSTALLATION FOR VEHICLES EQUIPPED WITH THE 3VZ V6 ENGINE. *YC
Showing the 8 most recent of 9 technical service bulletins on file with NHTSA.
BUMPER IS LOCATED TOO HIGH CAUSING DAMAGE DURING A COLLISION; SEAT BELT UNLATCHED IN ACCIDENT.
BUMPER IS LOCATED TOO HIGH CAUSING DAMAGE DURING A COLLISION; SEAT BELT UNLATCHED IN ACCIDENT.
HEAD GASKET WAS LEAKING. VEHICLE RAN POORLY, AND THERE WAS LITTLE HESITATION. *AK
WHEN USING HIGH BEAMS OR TURN SIGNALS HEADLIGHTS WILL TURN OFF. CONSUMER MUST WIGGLE/TOGGLE SWITCH FOR HEADLIGHTS TO TURN BACK ON.*AK
WHEN USING HIGH BEAMS OR TURN SIGNALS HEADLIGHTS WILL TURN OFF. CONSUMER MUST WIGGLE/TOGGLE SWITCH FOR HEADLIGHTS TO TURN BACK ON.*AK
Showing the 5 most serious of 12 complaints filed with NHTSA.
