Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO EXTENDED, 5.3 T, 4L60E/M30REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 673 (PROGRAMMING AND SETUP - ALL SYSTEMS)REPAIR INSTRUCTIONSPOWERTRAIN CONTROL MODULE PROGRAMMING AND SETUPPCM REPLACEMENT
2006 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30
PCM Replacement
2006 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30SECTION PCM Replacement
WARNING: This page is about a different car, the 2006 GMC Sierra, 2006 GMC Cab & Chassis Sierra, 2006 Chevrolet Silverado, and 2006 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
If the PCM is replaced, the following procedures must be performed:
- The PCM Reprogramming-Refer to Service Programming System (SPS) .
- The CKP Variation Learn-Refer to the appropriate procedure:
- CKP System Variation Learn Procedure (4.3L (LU3)).
- CKP System Variation Learn Procedure (4.8L, 5.3L, 6.0L (LR4, LM7, LQ4, LQ9, or L59)).
- CKP System Variation Learn Procedure (8.1L (L18)).
- The Theft Deterrent Programming-Refer to Programming Theft Deterrent System Components .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.