1986 Chevrolet G20 Service and Repair Manual
This factory service and repair manual for the 1986 Chevrolet G20 has four engines to specify, the 4.3L V6 of 262 cubic inches, the 5.0L V8 of 305, the 5.7L V8 of 350 and the 6.2L diesel V8 of 379, all overhead-valve and none turbocharged, against three bodies and three trims. The bodies are the extended passenger van and the standard and extended cargo vans; the trims are Beauville, Chevy and Sportvan. The engine chapters branch four ways while the body electrical material largely does not.
Engines covered
- 5.0L V8 (305 cu in) — OHV, naturally aspirated, gasoline
- 6.2L V8 (379 cu in) — OHV, naturally aspirated, diesel
- 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 3-door extended passenger van
- 3-door van standard cargo van
- 3-door van extended cargo van
Trims covered
- Beauville
- Chevy
- Sportvan
Known issues on the 1986 G20. A single recall is recorded federally for this model year: replacement oil filters that seal inadequately, letting the engine lose oil with a fire possible if it reaches something hot. The complaint record holds five reports, with the power train, the seats and the service brakes each drawing one and the rest scattered. None of that points at one weak system, so the useful material here is the ordinary kind, brake hydraulic specifications, transmission and axle procedures, seat and interior fastener torque values, and the diagnostics that belong with them.
CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHI
THIS CONDITION MAY CAUSE INADEQUATE SEALING AND LOSS OF ENGINE OIL, POSSIBLY RESULTING IN
HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING N
I HAD ZANESVILLE JOINT AND CLUTCH MAKE ME A NEW DRIVESHAFT FOR MY 1986 CHEVY G-20 VAN, BECAUSE MY OLD DRIVESHAFT WAS CREATING A VIBRATION. THIS NEW ONE PIECE DRIVESHAFT WAS APROX.
WHILE DRIVING THE DRIVER'S AND ALL PASSENGERS' SEATS UNEXPECTEDLY RELEASE TO THE RECLNING POSITION. CAUSE UNKNOWN. PLESASE GIVE ANY FURTHER DETAILS. *AK
BRAKE PADS FAILED.
STEERING BOX FAILED.
Showing the 4 most serious of 5 complaints filed with NHTSA.
