1989 GMC K2500 Service and Repair Manual
This factory service and repair manual for the 1989 GMC K2500 spans three configurations, standard cab pickup, extended cab pickup and cab & chassis, and the four engines that could be ordered behind them: a 4.3L V6, a 5.0L V8 and a 5.7L V8 on gasoline, plus a 6.2L diesel V8. Sierra, Sierra SLE and Sierra SLX make up the trim list. All four engines are naturally aspirated overhead-valve units, so what separates them in the book is displacement, fueling and the torque figures that follow.
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
- 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 1989 K2500. Three of the four recalls on the federal record describe fire or restraint hazards. Replacement oil filters sold for these trucks can seal badly and lose engine oil, which may ignite; unexpected heat in the transmission can push fluid out of the vent tube, where it can also catch; and some trucks carry wrong instructions for adjusting the rear lap-shoulder belts, so a belt set by them may not hold an occupant in a sudden stop. Owners have filed three complaints with NHTSA, one each on tires, service brakes and seat belts. Brake and restraint procedures and transmission specifications cover that ground.
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
TRUCKS CAN CONTAIN INCORRECT INSTRUCTIONS ON HOW TO PROPERLY ADJUST REAR SEAT LAP-SHOULDER BELTS AS REQUIRED BY FMVSS 209.
INCORRECTLY ADJUSTED SEAT BELT WOULD NOT PROPERLYRESTRAIN OCCUPANT IN AN ACCIDENT OF SUDDEN STOP; TR
PROVIDE OWNER'S MANUAL INSERT CONTAINING THE CORRECT REAR LAP-SHOULDER BELT INSTRUCTIONS.
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
VALVE STEMS ON THE TIRES FAILED ON ALL FOUR WHEELS OVER A YEAR TIME FRAME. THESE WERE PURCHASED FROM NTB IN NEWINGTON, NH. WHEN I WENT BACK TO THEM AFTER THE SECOND VALVE FAILED, THEY SAID THEY DID NO
ALL THE LINES, FUEL AND BRAKE NEAR LEFT REAR WHEEL, AND TOP OF FUEL TANK, HAVE CORRODED. THIS HAS LED TO TWO NEAR DISASTERS, (ALMOST A CRASH(BRAKE LINE) AND FIRE(LEAKING GASOLINE). THESE LINES SHOUL
ALL THE LINES, FUEL AND BRAKE NEAR LEFT REAR WHEEL, AND TOP OF FUEL TANK, HAVE CORRODED. THIS HAS LED TO TWO NEAR DISASTERS, (ALMOST A CRASH(BRAKE LINE) AND FIRE(LEAKING GASOLINE). THESE LINES SHOUL
PASSENGER SIDE SEATS BELT APPEARS TO FASTEN PROPERLY, BUT AS YOU LEAN FORWARD OR FROM SIDE TO SIDE, THE SHOULDER BELT BEGINS TO LOOSEN AND WILL NOT RETRACT TAUGHT AGAINST YOU CHEST.
