1985 GMC G2500 Service and Repair Manual
This factory service and repair manual for the 1985 GMC G2500 is built around a four-engine spread that begins with a 4.3L V6 of 262 cubic inches and climbs through the 5.0L and 5.7L gasoline V8s to a 6.2L diesel V8 of 379, every one of them overhead-valve and naturally aspirated. Three van bodies are covered, all three-door: a standard cargo van plus extended cargo and extended passenger vans. Rally, Rally STX and Vandura are the trims. The book sets out procedures, specifications, torque values, wiring diagrams and diagnostics for each system.
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 standard cargo van
- 3-door extended passenger van
- 3-door extended cargo van
Trims covered
- Rally
- Rally STX
- Vandura
Known issues on the 1985 G2500. The 1985 G2500 carries a clean federal record, with no recalls and no owner complaints logged with NHTSA. Its manual earns its keep in maintenance and repair instead, holding specifications and service procedures for the V6, both gasoline V8s and the 6.2L diesel, torque values running through the driveline, brakes, steering and suspension, and wiring diagrams that take in the longer extended bodies as well as the standard van. Diagnostics for each of those systems follow, which is where a high-mileage example usually sends you.
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 VEHICLES LIST ABOVE. TH
THIS CONDITION MAY CAUSE INADEQUATE SEALING AND LOSS OF ENGINE OIL, POSSIBLY RESULTING IN A FIRE.
HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING NOVEMBER 20
