Sierra 1500 2WD V8-5.3L (2008)
Camshaft: Service and Repair
Camshaft Replacement (LY6, L76 and L92)
Camshaft Replacement (LY6, L76 and L92)
Tools Required
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EN 46330 Timing Belt Tensioner Retaining Pin
*
J 42386-A Flywheel Holding Tool
*
J 45059 Angle Meter
Removal Procedure
Important: If camshaft replacement is required, the valve lifters must also be replaced.
1. Remove the radiator support. Refer to Radiator Support Replacement .
2. Remove the valve lifters. Refer to Valve Lifter Replacement (L92 - First Design) (See: Lifter / Lash Adjuster/Service and Repair/Valve Lifter
Replacement (L92 - First Design))Valve Lifter Replacement (L92 - Second Design) (See: Lifter / Lash Adjuster/Service and Repair/Valve Lifter
Replacement (L92 - Second Design))Valve Lifter Replacement (LY2 and LY6) (See: Lifter / Lash Adjuster/Service and Repair/Valve Lifter
Replacement (LY2 and LY6))Valve Lifter Replacement (LH6, LMG, LY5 and L76) (See: Lifter / Lash Adjuster/Service and Repair/Valve Lifter
Replacement (LH6, LMG, LY5 and L76)) .
3. Remove the engine front cover. Refer to Engine Front Cover Replacement (LC9, LH6, LMG, LY2 and LY5) (See: Timing Components/Timing
Cover/Service and Repair)Engine Front Cover Replacement (LY6, L76 and L92) (See: Timing Components/Timing Cover/Service and Repair) .
4. Remove the starter motor. Refer to Starter Motor Replacement (4.3L) Starter Motor Replacement (4.8L, 5.3L, 6.0L, and 6.2L) Starter Motor
Replacement (6.6L) .
Notice: Refer to Fastener Notice .
Important: Ensure that the teeth of the J 42386-A mesh with the teeth of the engine flywheel.
5. Install the J 42386-A (1) and bolts. Use one M10-1.5 x 120 mm and one M10-1.5 x 45 mm bolt for proper tool operation.
Tighten the J 42386-A bolts to 50 N.m (37 lb ft).