Chevrolet Silverado / GMC Sierra. Manual — part 241
2. Remove the air cleaner outlet duct.
Fig. 21: Drive Belt Routing
Courtesy of GENERAL MOTORS CORP.
3. Install a breaker bar with hex-head socket to the drive belt tensioner bolt.
4. Rotate the drive belt tensioner clockwise in order to relieve tension on the belt.
5. Remove the belt from the pulleys and the drive belt tensioner.
6. Slowly release the tension on the drive belt tensioner.
2008 Hummer H2
2008 ENGINE Engine Mechanical - 6.2L - H2
7. Remove the breaker bar and socket and from the drive belt tensioner bolt.
8. Clean and inspect the belt surfaces of all the pulleys.
Installation Procedure
Fig. 22: Drive Belt Routing
Courtesy of GENERAL MOTORS CORP.
1. Route the drive belt around all the pulleys except the idler pulley.
2. Install the breaker bar with hex-head socket to the belt tensioner bolt.
2008 Hummer H2
2008 ENGINE Engine Mechanical - 6.2L - H2
3. Rotate the belt tensioner clockwise in order to relieve the tension on the tensioner.
4. Install the drive belt under the idler pulley.
5. Slowly release the tension on the belt tensioner.
6. Remove the breaker bar and socket from the belt tensioner bolt.
7. Inspect the drive belt for proper installation and alignment.
2008 Hummer H2
2008 ENGINE Engine Mechanical - 6.2L - H2
Fig. 23: MAF/IAT Sensor & Air Cleaner Assembly
Courtesy of GENERAL MOTORS CORP.
8. Install the air cleaner outlet duct.
9. Tighten the air cleaner outlet duct clamps at the following locations:
Throttle body
MAF/IAT sensor
Tighten: Tighten the air cleaner outlet duct clamp screws to 7 N.m (62 lb in).
AIR CONDITIONING COMPRESSOR BELT REPLACEMENT
Removal Procedure
1. Remove the accessory drive belt. Refer to Drive Belt Replacement - Accessory.
2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
3. Remove the engine protection shield. Refer to Engine Protection Shield Replacement .
IMPORTANT: Align the arrow at the throttle body end of the duct with the
throttle body attaching stud.
NOTE:
Refer to Fastener Notice .
2008 Hummer H2
2008 ENGINE Engine Mechanical - 6.2L - H2
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