1991 GMC C/K Sierra Truck Electrical Diagrams & Diagnosis Manual

Sierra Pickups - C1500 C2500 C3500 K1500 K2500 K3500 | 1/2 Ton, 3/4 Ton and 1 Ton | All Models Including SL, SLE, SLX & Sport | 4.3L V6 Gas, 5.0L V8 Gas, 5.7L V8 Gas, 7.4L Gas & 6.2L V8 Diesel Engines | General Motors Corporation

This manual covers the "new style" C/K trucks.  These trucks DO NOT have wind wing windows. If your truck has the wind wing windows, see the R/V series truck manual

Connector Configurations * Harness Locations * Circuits * Relays * Grounds * Vacuum Diagrams * Valve & Sensor Locations * Hose Colors * Vacuum Distribution * Wiring Diagrams

This is the real thing, written by the manufacturer specifically for the vehicle(s) listed. This ensures you get the job done right the first time. It is very detailed with good diagrams and exploded views. A must for anyone who insists on Genuine OEM quality parts.
Large format 11" x 17". Approx. 250 pages.

Condition

Good condition. Cover has been written on with black marker. All pages are in place and straight. Page surfaces are mostly clean.

Topics Include:

• Harness Routing Views
• Basic Electricity
• Electrical Diagnosis
• Circuit Diagrams
• Circuit Wiring
• Connector Diagnosis Procedures
• Connectors
• Component Locater Views
• Component Locater Index