1986 Jeep Grand Wagoneer Service and Repair Manual

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Factory-Grade Data

1986 Jeep Grand Wagoneer 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 and reference data (where provided)
  • Electrical diagnostics with wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

  • Base Sport Utility 4-Door

Engines covered

  • 5.9L 360Cu. In. V8 GAS OHV Naturally Aspirated
  • 4.2L 258Cu. In. l6 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

1986 Jeep Grand Wagoneer Recalls & Complaints

NHTSA #85V14000029/10/1985Component: SERVICE BRAKES, HYDRAULIC:FLUID

CERTAIN OF THESE VEHICLES MAY HAVE BEEN BUILT WITH CONTAMINATED BRAKE FLUID.

Remedy

FLUSH AND REFILL BRAKE SYSTEM WITH NEW HYDRAULIC BRAKE FLUID.

NHTSA #87V17800023/11/1987Component: VISIBILITY:GLASS, SIDE/REAR

THE KEY OPERATED TAILGATE WINDOW WILL CONTINUE TO CLOSE IF THE SPRING LOADED KEY DOES NOT RETURN TO OFF POSITION WHEN RELEASED.

Consequence

WINDOW COULD CLOSE ON A CHILD OR OTHERS RESULTING INPERSONAL INJURY.

Remedy

OWNERS SHOULD NOT LEAVE KEY IN TAILGATE OF UNATTENDED VEHICLE. REPAIR MECHANISM TO ASSURE PROPER KE

TSB #43048

UNKNOWN

TSB #43049

UNKNOWN

19980608Component: ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASHFire reported

VEHICLE FIRE DUE TO FAILURE OF THE WIRING HARNESS IN THE DASHBOARD.

19991214Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

THE WHOLE CRANKCASE EMISSION CONTROL DEVICE FAILED, CAUSING A COMPLETE MELTDOWN OF ALL ENGINE PARTS. AT THE TIME THE VEHICLE WAS BEING DRIVEN ON THE FREEWAY AT 60 MPH. THERE WAS NO WARNING - THE VEH

19991214Component: ELECTRICAL SYSTEM:STARTER ASSEMBLY

THE WHOLE CRANKCASE EMISSION CONTROL DEVICE FAILED, CAUSING A COMPLETE MELTDOWN OF ALL ENGINE PARTS. AT THE TIME THE VEHICLE WAS BEING DRIVEN ON THE FREEWAY AT 60 MPH. THERE WAS NO WARNING - THE VEH

19991214Component: ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR

THE WHOLE CRANKCASE EMISSION CONTROL DEVICE FAILED, CAUSING A COMPLETE MELTDOWN OF ALL ENGINE PARTS. AT THE TIME THE VEHICLE WAS BEING DRIVEN ON THE FREEWAY AT 60 MPH. THERE WAS NO WARNING - THE VEH

19991214Component: STRUCTURE:BODY:HOOD

THE WHOLE CRANKCASE EMISSION CONTROL DEVICE FAILED, CAUSING A COMPLETE MELTDOWN OF ALL ENGINE PARTS. AT THE TIME THE VEHICLE WAS BEING DRIVEN ON THE FREEWAY AT 60 MPH. THERE WAS NO WARNING - THE VEH

Showing the 5 most serious of 14 complaints filed with NHTSA.

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