2003 Chevrolet Silverado 1500 HD Service and Repair Manual

This factory service and repair manual for the 2003 Chevrolet Silverado 1500 HD concerns one configuration only: the 6.0-liter overhead-valve V8 of 364 cubic inches, naturally aspirated on gasoline, in a four-door crew cab pickup built as LS or LT. Because nothing branches by displacement or by cab, the specifications and torque values read straight through, and the diagnostic charts for fuel, ignition, cooling, emissions, brakes, steering and suspension all describe the same truck a technician has in front of them.

Engines covered

• 6.0L V8 (364 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 4-door crew cab pickup

Trims covered

• LS
• LT

Known issues on the 2003 Silverado 1500 HD. Eight recalls sit on this year's record. One covers a windshield installed without a continuous urethane bead, which may not be retained in a crash. Another involves a second-row center belt whose routing lets the lap portion ride onto the abdomen instead of low across the hips. A third describes a replacement wheel hub whose inboard retention nut can loosen until the wheel separates. Complaints reach 2,119 — 936 on the service brakes, 396 on the electrical system, 165 on steering.