1999 GMC K2500 Service and Repair Manual

This factory service and repair manual for the 1999 GMC K2500 reaches across four body styles: pickups with a standard or an extended cab, a four-door crew cab pickup and a cab & chassis. Three engines serve all of them, a turbocharged 6.5L diesel V8, a 7.4L gasoline V8 and a 5.7L gasoline V8. The trim list stops at Sierra SL, Sierra SLE and Sierra SLT. Body count aside, the mechanical content is common, so engine specifications and torque values carry from one cab to the next.

Engines covered

• 6.5L V8 (395 cu in) — OHV, turbocharged, diesel
• 7.4L V8 (454 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 cab & chassis
• 4-door crew cab pickup
• 2-door extended cab pickup

Trims covered

• Sierra SL
• Sierra SLE
• Sierra SLT

Known issues on the 1999 K2500. Coverage is about upkeep, with procedures, specifications, torque values, wiring diagrams and diagnostics laid out for the turbocharged 6.5L diesel and the two gasoline V8s, and for the four body styles the manual lists, from the standard cab pickup to the crew cab.