1985 Chevrolet G20 Service and Repair Manual

This factory service and repair manual for the 1985 Chevrolet G20 covers three body configurations, an extended passenger van and cargo vans in standard and extended length, sold as Beauville, Chevy and Sportvan. Under the hood the choice runs to four overhead-valve engines: a 4.3L V6 of 262 cubic inches, a 5.0L V8 of 305, a 5.7L V8 of 350 and a naturally aspirated 6.2L diesel V8 of 379. Length differences between the standard and extended shells show up in the body and chassis sections rather than the engine chapters.

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 1985 G20. One recall is on the federal record for this year, and it concerns replacement oil filters whose seal can fail, draining engine oil and raising the risk of a fire. Owners have logged six complaints, spread thinly, with the tires, the suspension and the service brakes each drawing one and no single system dominating. Brake hydraulics, suspension geometry and wheel-end service are each given their own procedures, specifications and torque values here, together with the diagnostic routines that sort a worn van's symptoms back to their source.