1984 Chevrolet G20 Service and Repair Manual
This factory service and repair manual for the 1984 Chevrolet G20 is written for four trims, Beauville, Bonaventure, Chevy and Sportvan, built in two bodies, a standard passenger van and a standard cargo van. The engine bay is where the variety lies: a 4.1L inline-six of 250 cubic inches, a 5.0L V8 of 305, a 5.7L V8 of 350 and a 6.2L diesel V8 of 379, each overhead-valve and naturally aspirated. Fuel, ignition, cooling and driveline sections are keyed to whichever of them is on the lift.
Engines covered
- 5.0L V8 (305 cu in) — OHV, naturally aspirated, gasoline
- 4.1L inline-six (250 cu in) — OHV, naturally aspirated, gasoline
- 6.2L V8 (379 cu in) — OHV, naturally aspirated, diesel
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 3-door standard passenger van
- 3-door van standard cargo van
Trims covered
- Beauville
- Bonaventure
- Chevy
- Sportvan
Known issues on the 1984 G20. The federal record shows three recalls for this year. Replacement oil filters that do not seal can drain the engine of oil and start a fire. Front safety belt anchorages in another leave occupants inadequately held in a sudden stop or crash. The third is an assembly oversight: a plastic plug left in place on top of the front air conditioner, which upsets the way the evaporator blower housing moves air. Three complaints are recorded, one each on engine and engine cooling, equipment and the power train, and cooling, ventilation and driveline diagnostics all sit in this manual.
PLASTIC PLUG LOCATED ON TOP OF THE FRONT AIR CONDITIONER WAS NOT REMOVED DURING ASSEMBLY. THIS DEFECT DISRUPTS NORMAL OPERATION OF EVAPORATOR BLOWER HOUSING.
REAR A/C SYSTEM BLOWER WILL BE INSPECTED FOR DAMAGE SUCH AS MELTING OR BURNING. IF NO DAMA
WHEN DRIVING THE VEHICLE STALLS OUT WHEN THE ACCELERATOR IS APPLIED. DEALER CAN'T FIND THE PROBLEM. *AK
RADIO INOPERATIVE.
TRANSMISSION FAILED.
