1998 Chevrolet T7500 Service and Repair Manual

This factory service and repair manual for the 1998 Chevrolet T7500 must account for three engines: the gasoline 6.0L overhead-valve V8 of 366 cubic inches, plus two turbocharged overhead-valve diesel inline-sixes, a 7.2L of 441 cubic inches and a 6.6L of 403 cubic inches. Any of the three can be found in the F7B042 or F7B064 straight truck with its low tilt cab, so identifying the engine correctly is the first step before a specification is read.

Engines covered

• 6.0L V8 (366 cu in) — OHV, naturally aspirated, gasoline
• 7.2L inline-six (441 cu in) — OHV, turbocharged, diesel
• 6.6L inline-six (403 cu in) — OHV, turbocharged, diesel

Body styles covered

• Straight truck, low tilt

Trims covered

• F7B042
• F7B064

Known issues on the 1998 T7500. One owner complaint stands on record for this model year, and it falls under visibility. On a tilt cab truck that category takes in the glass, wipers, washers, mirrors and the lighting and switching behind them, which are electrical as often as they are mechanical. This manual carries the component procedures for that hardware, the wiring diagrams that show which switch feeds which motor and where the circuit finds its ground, and the diagnostic steps that separate a failed component from a failed supply.