Chevrolet Silverado / GMC Sierra. Service manual — part 281

beyond the front face of the engine block.

Fig. 158: View Of CMP Actuator Solenoid Valve
Courtesy of GENERAL MOTORS CORP.

5. 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.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 159: View Of CMP Actuator Alignment Mark & Crankshaft Sprocket
Alignment Mark
Courtesy of GENERAL MOTORS CORP.

6. 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)

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

should be located in the 12 o'clock position.

Fig. 160: View Of Special Tool EN 46330
Courtesy of GENERAL MOTORS CORP.

7. Remove the EN 46330 . See Special Tools.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 161: Tightening The CMP Actuator Solenoid Valve
Courtesy of GENERAL MOTORS CORP.

8. Tighten the CMP actuator solenoid valve.

Tighten:

1. Tighten the valve a first pass to 65 N.m (48 lb ft).

NOTE:

Refer to Fastener Notice .

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2