1987 Chevrolet G20 Service and Repair Manual
1987 Chevrolet G20 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
- Sportvan Extended Passenger Van 3-Door
- Beauville Extended Passenger Van 3-Door
- Chevy Van Standard Cargo Van 3-Door
- Chevy Van Extended Cargo Van 3-Door
Engines covered
- 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
- 6.2L 379Cu. In. V8 DIESEL OHV Naturally Aspirated
- 4.3L 262Cu. In. V6 GAS 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
FUEL TANK LOWER FILLER PIPE MAY CONTAIN SMALL HOLES AT SOME SPOT WELDS USED TO ATTACH A MOUNTING BRACKET.
FUEL COULD LEAK FROM THE PIPE DURING REFUELING ORTURNING AND SPILL FUEL IN EXCESS OF AMOUN
REPLACE FUEL TANK LOWER FILLER PIPE.
TIRES IN LIKE NEW CONDITION TWO REAR TIRES LOST TREAD, NOT BLOWING BUT TREAD PEELING SIMLER TO FIRE STONE PROBLEM. ARE TIRES SAFE TO USE? *AK (DOT NUMBER: DORAMHV316 TIRESIZE: L
I HAVE SMALL CHIDREN WHO COULD NOT GET OUT OF THIS DOOR IN CASE OF EMERGENCY. *AK
STEERING COLUMN HAS GRADUALLY LOOSENED AT THE TILT MECHINISIM UNTIL THE WHEEL IS VERY LOOSE. *AK
WAS TRAVELING 60 MPH & STARTED TO SMELL SOMETHING BURNING. ODOR/SMOKE WENT AWAY. AFTER STOPPING VEHICLE, CHECKED UNDER HOOD AND NOTICED PLASTIC HOUSING HAD BURNED IN HALF. HOSE
Showing the 4 most serious of 10 complaints filed with NHTSA.
