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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1641 (Engine Control System & Fuel System - 4.3L - Troubleshooting And Diagnosis) >> Electronic Ignition System Diagnosis >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the spark plug wires for proper orientation.