Hummer H3. Manual — part 115

Fig. 119: Installing 44217 & EN-44217-45 To Timing Chains
Courtesy of GENERAL MOTORS CORP.

5. Remove the J 44217 (1) and the EN-44217-45 (1). See Special Tools.

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

Fig. 120: View Of J 44221 Installed On Camshafts
Courtesy of GENERAL MOTORS CORP.

6. Remove the J 44221 from the camshafts. See Special Tools.

7. Install the CMP sensor. Refer to Camshaft Position (CMP) Sensor Replacement-Intake

in Engine Controls - 3.5L (L52).

8. Install the exhaust CMP sensor. Refer to Camshaft Position (CMP) Sensor

Replacement-Exhaust in Engine Controls - 3.5L (L52).

9. Install the camshaft cover. Refer to Camshaft Cover Replacement.

INTAKE CAMSHAFT SPROCKET REPLACEMENT

Tools Required

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

EN-44217-45 Chain Holding Tool. See Special Tools.

J 44217 Timing Chain Retention Tool. See Special Tools.

J 44221 Camshaft Holding Tool. See Special Tools.

J 45059 Angle Meter. See Special Tools.

Removal Procedure

1. Remove the camshaft cover. Refer to Camshaft Cover Replacement.

2. Remove the intake camshaft position (CMP) sensor. Refer to Camshaft Position (CMP)

Sensor Replacement-Intake in Engine Controls - 3.5L (L52).

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3

Fig. 121: View Of CMP Actuator
Courtesy of GENERAL MOTORS CORP.

3. Rotate the crankshaft in the engine rotational direction clockwise, until the #1 piston is at

top dead center (TDC) on the compression stroke.

The word Delphi on the exhaust camshaft position actuator will be parallel with the cylinder
head to cam cover mating surface.

4. Using the timing mark on the intake camshaft sprocket as a reference, make a mark on the

2006 Hummer H3

2006 ENGINE Engine Mechanical - 3.5L (L52) - H3