1988 Chevrolet K3500 Service and Repair Manual

This factory service and repair manual for the 1988 Chevrolet K3500 covers a two-door truck in three shapes — standard cab pickup, extended cab pickup and cab and chassis — with three overhead-valve engines behind them: the 7.4L gasoline V8 of 454 cubic inches, the 6.2L diesel V8 of 379, and the 5.7L gasoline V8 of 350. Cheyenne, Scottsdale and Silverado are the trims. The engine sections split three ways from the start, and the body and frame material splits again between the pickup boxes and the bare chassis.

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 cab & chassis
• 2-door extended cab pickup

Trims covered

• Cheyenne
• Scottsdale
• Silverado

Known issues on the 1988 K3500. One recall is on the federal record for this model year, and it concerns a replacement fuel filter whose connection can fail to seal, allowing gasoline to escape at the joint and, with an ignition source nearby, catch fire. One owner complaint has been recorded, under structure. Fuel line routing and connection service, along with frame and body repair specifications, are both covered in this manual, with the torque values and diagnostic steps that belong to them.