1988 GMC K3500 Service and Repair Manual
This factory service and repair manual for the 1988 GMC K3500 works with three engines, the 7.4L gasoline V8, the 5.7L gasoline V8 and the 6.2L diesel V8, and three body styles, the standard cab pickup, the extended cab pickup and the cab & chassis. Trim is Sierra, Sierra SLE or Sierra SLX. None of the engines is turbocharged, so coverage divides cleanly between the diesel's injection specifications and the gasoline engines' fueling and ignition figures.
Engines covered
- 7.4L V8 (454 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
- 2-door standard cab pickup
- 2-door extended cab pickup
- 2-door cab & chassis
Trims covered
- Sierra
- Sierra SLE
- Sierra SLX
Known issues on the 1988 K3500. Three recalls appear on the federal record for this truck. One describes replacement fuel filters that can seal poorly where they connect, letting fuel leak toward an ignition source. Another covers replacement oil filters with the same weakness, where the loss is engine oil and the risk is again fire. The third is a transmission that can push fluid out of its vent tube when heat builds unexpectedly. NHTSA holds one owner complaint for the year, on seat belts. Fuel and transmission procedures and the restraint specifications answer to those.
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
UNANTICIPATED HEAT IN THE TRANSMISSION CAN FORCE THE TRANSMISSION FLUID OUT OF THE VENT TUBE.
THE VENTED TRANSMISSION FLUID CAN CATCH FIRE IF EXPOSEDTO A SOURCE OF IGNITION.
INSTALL A LONGER TRANSMISSION VENT HOSE ROUTED TO THE LEFT SIDE OF THE ENGINE COMPARTMENT OF THE VEH
JUST BOUGHT THIS TRUCK & AM HAVING ISSUES WITH THE SEAT BELTS. THE SHOULDER STRAP DOES NOT STAY IN SECURE POSITION & DOES NOT WORK ON THE DRIVERS SIDE OR PASSENGER SIDE. WAS TOLD THIS WAS & IS A COMMO
JUST BOUGHT THIS TRUCK & AM HAVING ISSUES WITH THE SEAT BELTS. THE SHOULDER STRAP DOES NOT STAY IN SECURE POSITION & DOES NOT WORK ON THE DRIVERS SIDE OR PASSENGER SIDE. WAS TOLD THIS WAS & IS A COMMO
