1988 GMC Safari Service and Repair Manual

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Factory-Grade Data

1988 GMC Safari 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 troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Wiring diagrams and electrical sections
  • Powertrain, brakes, steering, suspension, HVAC and more

Trims covered

  • Base Standard Cargo Van 3-Door
  • SLX Standard Passenger Van 3-Door
  • SLE Standard Passenger Van 3-Door
  • SLT Standard Passenger Van 3-Door

Engines covered

  • 4.3L 262Cu. In. V6 GAS OHV Naturally Aspirated
  • 2.5L 2474CC 151Cu. In. l4 GAS OHV Naturally Aspirated

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
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

1988 GMC Safari Recalls & Complaints

NHTSA #93V11900002/08/1993Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR

SEVERE CORROSION DUE TO ROAD SALT AT THE JOINT OF THE STAMPED STEEL CENTER SECTION AND THE CAST OUTER SECTION CAN CAUSE THE SECTIONS TO SEPARATE.

Consequence

SEPARATION OF THE ROTOR SECTIONS CAN CAUSE LOSS OFBRAKING ABILITY IN THE AFFECTED WHEEL. THIS COULD

Remedy

REPLACE THE FRONT BRAKE ROTORS WITH NEW ROTORS WITH A CORROSION PROTECTION COATING. HOWEVER, IF REPL

TSB #10028790

GENERAL MOTORS: ON ALL 1988-2009 FULL SIZE CHEVROLET/GMC PICKUPS, UTILITIES AND VANS, THE BRAKE PEDAL WILL MOVE DOWN OR SELF APPLY DURING FULL LOCK TURNS OR NEAR FULL LOCK TURNS. CHEVROLET ASTRO AND GMC SAFARI VANS; HUMMER 2 ARE INCLUDED. *

TSB #10007838

DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT

TSB #10007244

WINDOW REGULATOR MOTOR DOES NOT FIT. *TT

TSB #37942

TRANSMISSION EXTENTION SEAL LEAKS. *TW

20030605Component: STEERING:HYDRAULIC POWER ASSIST SYSTEM

THE BOLTS ON THE POWER STEERING BOX SNAPPED OFF. *JB

20030605Component: SEAT BELTS:FRONT

THE FRONT SEAT BELTS WERE INOPERATIVE. *JB

19971022Component: STEERING: STEERING WHEEL/HANDLE BAR

STEERING WHEEL: DRIVING ALONG AND BUSHINGS FELL OUT OF TILT STEERING WHEEL COUPLING, AND STEERING WHEEL DROPPED IN CONSUMERS LAP. *AK *JB

19970602Component: SEATS:FRONT ASSEMBLY:POWER ADJUST

RECALL REPAIRS DONE ON BROKEN SEAT BOLT, BUT DEALER CHARGED CONSUMER.

19970403Component: SEAT BELTS

(7) OF (8) SEAT BELTS WILL NOT LOCK. BELT IS VERY LOOSE, ALLOWING ALOT OF MOVEMENT AND (1) 0F (8) SEAT BELT BUCKLES DOES NOT LATCH. PROBLEM HAS NOT BEEN CORRECTED. *AK

Showing the 5 most serious of 8 complaints filed with NHTSA.

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