1986 GMC G3500 Service and Repair Manual
This factory service and repair manual for the 1986 GMC G3500 has five body configurations to account for, from the 3-door standard cargo van through the extended cargo and passenger versions and the 3-door standard passenger van to the 2-door cutaway. Three engines are listed, all overhead-valve and naturally aspirated: a 6.2L diesel V8 of 379 cubic inches, a 4.3L V6 of 262 and a 5.7L V8 of 350. Seven trims are named. Procedures, specifications, torque values, wiring diagrams and diagnostics are laid out system by system across all of them.
Engines covered
- 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
- 2-door cutaway van
- 3-door standard passenger van
- 3-door extended cargo van
Trims covered
- Magnavan
- Rally
- Rally Camper Special
- Rally Custom
- Rally STX
- Vandura
- Vandura Special
Known issues on the 1986 G3500. Federal records list no recalls and no owner complaints for the 1986 G3500, which makes it a clean year. The manual's job is the everyday one, then, and it holds engine specifications and service procedures for the V6, the gasoline V8 and the 6.2L diesel, torque values for the brakes, axles, steering and suspension that a one-ton van works hard, and wiring diagrams for every body listed. Diagnostics for those same systems round it out, which is where most work on a van this old begins.
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
