2003 GMC Sierra 1500 Service and Repair Manual

The convenient, cloud-based 2003 GMC Sierra 1500 service and repair manual

The 2003 GMC Sierra 1500 service and repair manual from Repair Surge is the ultimate reference guide. It provides accurate, reliable information based on the original service materials from the manufacturer. You'll get procedures, specifications, part numbers, illustrations, wiring diagrams, and more. Whether you're an industry professional or a DIY mechanic, it's the perfect addition to any toolbox.

Covers the following trim packages for the 2003 Sierra 1500:

• Base, 4.3L V6 (VIN X, LU3) Gas

• Base, 4.8L V8 (VIN V) Gas

• Base, 5.3L V8 (VIN T, LM7) Gas

• Base, 5.3L V8 (VIN Z, L59) Flex Fuel

• Denali, 6.0L V8 (VIN U, LQ4) Gas

• SL, 4.3L V6 (VIN X, LU3) Gas

• SL, 4.8L V8 (VIN V) Gas

• SL, 5.3L V8 (VIN T, LM7) Gas

• SL, 5.3L V8 (VIN Z, L59) Flex Fuel

• SLE, 4.3L V6 (VIN X, LU3) Gas

• SLE, 4.8L V8 (VIN V) Gas

• SLE, 5.3L V8 (VIN T, LM7) Gas

• SLE, 5.3L V8 (VIN Z, L59) Flex Fuel

• SLT, 4.3L V6 (VIN X, LU3) Gas

• SLT, 4.8L V8 (VIN V) Gas

• SLT, 5.3L V8 (VIN T, LM7) Gas

• SLT, 5.3L V8 (VIN Z, L59) Flex Fuel

• WT, 4.3L V6 (VIN X, LU3) Gas

• WT, 4.8L V8 (VIN V) Gas

• WT, 5.3L V8 (VIN T, LM7) Gas

• WT, 5.3L V8 (VIN Z, L59) Flex Fuel

Everything you need for a successful repair

Service and Repair Procedures

Specifications

Parts Numbers and Illustrations

Component Locations

Fluids and Lubricants

Wiring Diagrams

Technical Service Bulletins

Vehicle and Equipment Recalls

Maintenance Schedules

Estimated Labor Times

Diagnostics and Troubleshooting

Safety Precautions