1993 GMC K1500 Service and Repair Manual

This factory service and repair manual for the 1993 GMC K1500 takes in four trims, Sierra, Sierra SLE, Sierra SLX and Sierra Sport, over the 2-door standard cab and 2-door extended cab pickups. The engine bay may hold any of four overhead-valve, naturally aspirated units: the 5.0L V8, the 6.2L diesel V8, the 4.3L V6 or the 5.7L V8. The manual sorts its content by system rather than by badge, so procedures, specifications, torque values, wiring diagrams and diagnostics are found in the same place whichever truck is on the lift.

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

• Sierra
• Sierra SLE
• Sierra SLX
• Sierra Sport

Known issues on the 1993 K1500. Two recalls are on the books for this year. The first concerns replacement oil filters whose sealing can fail, draining oil from a running engine and creating a fire hazard. The second involves transmission fluid forced out of the vent tube by heat the design did not anticipate, which can burn if it reaches an ignition source. Twelve owner complaints are logged with NHTSA, with seats, visibility and the service brakes each drawing two. Transmission overhaul, brake service, wiper and lighting circuits, and seat hardware procedures are all documented here with their torque values.