1988 GMC R3500 Service and Repair Manual
This factory service and repair manual for the 1988 GMC R3500 has to serve everything from a finished crew cab pickup to a bare cab and chassis waiting on a body, which is why four configurations and three trims — Base, High Sierra and Sierra Classic — sit on its coverage list. The engines are four naturally aspirated overhead-valve units: 7.4L and 5.7L gasoline V8s, a 4.8L gasoline inline-six and a 6.2L diesel V8. Every system is documented with procedures, specifications, torque values, wiring diagrams and diagnostics.
Engines covered
- 7.4L V8 (454 cu in) — OHV, naturally aspirated, gasoline
- 6.2L V8 (379 cu in) — OHV, naturally aspirated, diesel
- 4.8L inline-six (292 cu in) — OHV, naturally aspirated, gasoline
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 4-door crew cab pickup
- 2-door standard cab pickup
- 4-door cab & chassis
- 2-door cab & chassis
Trims covered
- Base
- High Sierra
- Sierra Classic
Known issues on the 1988 R3500. The federal record on this model year is clean, with no recalls and no owner complaints. In place of a defect list the manual offers depth: fuel, ignition and valvetrain figures for the 7.4L and 5.7L V8s and the 4.8L inline-six, injection and glow plug diagnosis for the 6.2L diesel, and brake, steering, suspension and axle procedures for the chassis under all four body configurations, each with torque values, wiring diagrams and diagnostics.
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
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURE
THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. I
HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOB
THE REAR VIEW MIRRORS ON EACH SIDE OF THESE VEHICLES HAVE THIRTY-NINE SQUARE INCHES OF REFLECTIVE SURFACE, LESS THAN THE FIFTY SQUARE INCHES REQUIRED BY FMVSS 111.
REDUCED REFLECTIVE AREA ON OUTSIDE REAR VIEW MIRRORSREDUCES THE DRIVER'S APPARENT AREA OF VISIBILITY
REPLACE THE NON-CONFORMING REAR VIEW MIRRORS.
