1991 Chevrolet C1500 Service and Repair Manual
This factory service and repair manual for the 1991 Chevrolet C1500 is written for two cabs, six trims and six engines, which is a great deal of truck to hold in one volume. The standard and extended cab pickups take engines from the 4.1L inline-six of 250 cubic inches to the 7.4L V8 of 454, with a 6.2L diesel V8 of 379 among them and the 4.3L V6 and the 5.0L and 5.7L V8s in between. Base, WT, Cheyenne, Scottsdale, Silverado and 454 SS set the equipment, and the specifications are indexed accordingly.
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
- 7.4L V8 (454 cu in) — OHV, naturally aspirated, gasoline
- 4.1L inline-six (250 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 2-door standard cab pickup
- 2-door extended cab pickup
Trims covered
- Base
- 454 SS
- Cheyenne
- Scottsdale
- Silverado
- WT
Known issues on the 1991 C1500. Two recalls stand on the federal record, both involving replacement filters rather than original hardware: a fuel filter that can seal inadequately at its connection and leak, and an oil filter that can seal inadequately and lose engine oil, with fire the risk in either case. Complaints are heavier at forty-two, service brakes leading with fifteen, then tires with five and structure with four. Brake hydraulic testing and lining specifications, wheel and tire fitting torque, and frame and body mounting procedures all appear in these sections.
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 VEHI
THIS CONDITION MAY CAUSE INADEQUATE SEALING AND LOSS OF ENGINE OIL, POSSIBLY RESULTING IN
HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING N
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
THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FU
HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGA
SOME CUSTOMERS MAY COMMENT ON FRONT DOOR HINGE PIN BUSHING WEAR, FRONT DOOR SAG, OR DOOR CHUCKING MOVEMENT IN EXTREME OPERATING CONDITIONS. *TT
FAILURE OF THE ABS BRAKING SYSTEM, CAUSING THE CONSUMER TO HAVE AN ACCIDENT.*AK CONSUMER HIT A DEER.*JB
ENGINE FAILED CAUSING SMOKE AND FIRE. OHIO STATE POLICE REPORT.
VEHICLE FIRE WHILE TOWING A TRAILER, TRANSMISSION FLUID POURED OUT ON THE MANIFOLD CAUSING FIRE, PRIOR TO RECALL.
DRIVING AT 50MPH FRONT LEFT TIRE SEPARATED LUCKILY I WAS ABLE TO CONTROL VEHICLE. A SPARE WAS PUT ON-SOME MINOR DAMAGE TO TRUCK UNDERCARRIAGE. *TR
Showing the 4 most serious of 43 complaints filed with NHTSA.
