Sierra 3500 2WD V8-6.0L (2008)
12. Install a NEW CMP actuator solenoid valve (234). With the CMP actuator properly positioned onto the camshaft, the CMP actuator solenoid
valve can be threaded completely into the camshaft using light hand pressure. Tighten by hand until snug.
13. Inspect the sprockets for proper alignment. The mark on the CMP actuator sprocket (1) should be located in the 6 o'clock position and the mark on
the crankshaft sprocket (2) should be located in the 12 o'clock position.
