1990 GMC Jimmy Service and Repair Manual
1990 GMC Jimmy 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
- Sierra Classic Sport Utility 2-Door
- Base Sport Utility 2-Door
Engines covered
- 6.2L 379Cu. In. V8 DIESEL OHV Naturally Aspirated
- 5.7L 350Cu. In. V8 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
CERTAIN PRO-A MOTORS CORNER LAMPS, TURN SIGNALS, AND HEADLIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER S
WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICL
PRO-A MOTORS WILL NOTIFY OWNERS AND OFFER TO REPURCHASE THE LAMPS. THE RECALL BEGAN ON APRIL 3, 200
POP SNAP NOISE IN THE FRONT SUSPENSION WHEN BRAKING. *MR
DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT
END GATE LATCH RATTLE (INSTALL REVISED STRIKER). *TW
WATER LEAK AT THE A/C RECIRCULATION DOOR (INSTALL NEW HOOD HINGE SEAL). *TW
COLD ENGINE KNOCK. *TW
BRAKES: DRIVING DOWN A MOUNTAIN AREA, AND APPLIED THE BRAKES, COULDN'T GET ENOUGH BRAKING POWER TO SLOW THE VEHICLE DOWN, AND THE BRAKE PEDAL WENT COMPLETELY TO THE FLOOR. VEHICLE WOULD NOT STOP AN
WHILE DRIVING SMOKE CAME FROM UNDER THE HOOD. AFTER STOPPING AND OPENING THE HOOD OWNER DISCOVERED ENGINE FIRE. DEALER HAS NOT SEEN VEHICLE. *AK
REPLACED HEATER CORE (A/C) DOOR HANDLES ON DRIVER AND PASSENGER DOOR SEPARATED FROM INSIDE DOOR PANEL. HESITATION ON START, AND THROUGHOUT DRIVING RANGE, SEEMS INDICATIVE OF FUEL LINE, CARB, OR SO
REPLACED HEATER CORE (A/C) DOOR HANDLES ON DRIVER AND PASSENGER DOOR SEPARATED FROM INSIDE DOOR PANEL. HESITATION ON START, AND THROUGHOUT DRIVING RANGE, SEEMS INDICATIVE OF FUEL LINE, CARB, OR SO
REPLACED HEATER CORE (A/C) DOOR HANDLES ON DRIVER AND PASSENGER DOOR SEPARATED FROM INSIDE DOOR PANEL. HESITATION ON START, AND THROUGHOUT DRIVING RANGE, SEEMS INDICATIVE OF FUEL LINE, CARB, OR SO
Showing the 5 most serious of 15 complaints filed with NHTSA.
