Chevrolet Silverado / GMC Sierra. Service manual — part 2000
Fig. 358: View Of Proper CMP Actuator Removal
Courtesy of GENERAL MOTORS CORP.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
3. Loosen and separate the CMP actuator and timing chain from the camshaft. Position your
fingers behind the actuator sprocket and pull the actuator away from the front of the
camshaft. Never pull on the reluctor wheel when attempting to remove the actuator.
CAUTION: Do not push or pull on the reluctor wheel of the camshaft
position (CMP) actuator during removal or installation.
The reluctor wheel is retained to the front of the CMP
actuator by 3 roll pins. Pushing or pulling on the wheel
may dislodge the wheel from the front of the actuator. The
actuator return spring is under tension and may rotate the
dislodged reluctor wheel, causing personal injury.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 359: View Of CMP Actuator & Timing Chain
Courtesy of GENERAL MOTORS CORP.
4. Remove the CMP actuator (235) and timing chain (208).
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 360: View Of Tie Strap Through Center Of Actuator
Courtesy of GENERAL MOTORS CORP.
5. Insert and secure a tie strap (1) through the center of the actuator and over the reluctor
wheel.
Installation Procedure
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
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