Chevrolet Silverado / GMC Sierra. Service manual — part 334

J 8433 Two Jaw Puller

J 41558 Crankshaft Sprocket Remover. See Special Tools.

J 41816-2 Crankshaft End Protector. See Special Tools.

J 42386-A Flywheel Holding Tool. See Special Tools.

Removal

Fig. 357: View Of Flex Plate & Bolts
Courtesy of GENERAL MOTORS CORP.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

1. Temporarily install the automatic transmission flex plate and bolts. Refer to Automatic

Transmission Flex Plate Installation.

Fig. 358: View Of Special Tool & Bolts
Courtesy of GENERAL MOTORS CORP.

IMPORTANT:

Do not use the camshaft position (CMP) actuator
solenoid valve again. Upon installation of the CMP
actuator and timing chain, install a NEW valve.

Do not apply threadlock to the flex plate bolts at this
time.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

2. Install the J 42386-A (1) and bolts. See Special Tools. Use 1 M10 - 1.5 x 120 mm and 1

M10 - 1.5 x 45 mm bolt for proper tool operation.

Tighten: Tighten the J 42386-A bolts to 50 N. See Special Tools.m (37 lb ft).

Fig. 359: View Of CMP Actuator Solenoid Valve
Courtesy of GENERAL MOTORS CORP.

3. Remove the CMP actuator solenoid valve (234).

NOTE:

Refer to Fastener Notice .

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

4. Discard the solenoid valve.

Fig. 360: View Of Proper CMP Actuator Removal

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2