Removal (4.3L)
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Remove the air cleaner resonator outlet duct. See AIR CLEANER RESONATOR OUTLET DUCT under AIR INDUCTION SYSTEMS.
- Disconnect the ignition coil driver electrical connector. See Figure. Remove ignition control module screws. Remove the ignition control module and heat sink.