1991 Chevrolet K1500 Service and Repair Manual

This factory service and repair manual for the 1991 Chevrolet K1500 answers to five trims, Cheyenne, Scottsdale, Silverado, Sport and WT, which is the widest part of the truck's spread. The mechanical range is narrower and fixed: four overhead-valve engines, all naturally aspirated, in 4.3L V6, 5.0L V8, 5.7L V8 and 6.2L diesel V8 form, mounted in either a two-door standard cab or a two-door extended cab. Torque values, clearances and wiring diagrams are given against that combination.

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

Trims covered

• Cheyenne
• Scottsdale
• Silverado
• Sport
• WT

Known issues on the 1991 K1500. Two recalls sit on the federal record for the 1991 truck, both about replacement filters rather than original hardware. In one, a fuel filter can seal badly at the connection and allow gasoline to leak, which near an ignition source can start a fire. In the other, an oil filter can fail to seal and let the engine lose its oil, with the same fire risk named. Owners have logged a single complaint, and it concerns the service brakes, so the hydraulic system, its specifications and its diagnostic sequence are the pages that matter most on this truck.