Sierra Denali AWD V8-6.2L (2008)
1. Compress the timing chain tensioner guide and install the EN 46330 .
Important:
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Properly locate the CMP actuator on the locating pin of the camshaft.
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The sprocket teeth and timing chain must mesh.
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The camshaft and the crankshaft sprocket alignment marks MUST be aligned properly.
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DO NOT use the CMP solenoid valve again. Install a NEW valve during assembly.
2. Identify the alignment hole (1) in the rear face of the CMP actuator and the locating pin (2) on the front face of the camshaft.