Chevrolet Silverado / GMC Sierra. Service manual — part 243

Fig. 28: View Of Drive Belt Idler Pulley
Courtesy of GENERAL MOTORS CORP.

1. Install the drive belt idler pulley and bolt to the generator bracket.

Snug the bolt finger tight.

2. Install the drive belt. Refer to Drive Belt Replacement - Accessory.

3. Tighten the drive belt idler pulley bolt.

Tighten: Tighten the drive belt idler pulley bolt to 50 N.m (37 lb ft).

DRIVE BELT TENSIONER REPLACEMENT - ACCESSORY

NOTE:

Refer to Fastener Notice .

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Removal Procedure

Fig. 29: View Of Drive Belt Tensioner & Bolts
Courtesy of GENERAL MOTORS CORP.

1. Remove the accessory drive belt. Refer to Drive Belt Replacement - Accessory.

2. Remove the drive belt tensioner bolts.

3. Remove the drive belt tensioner.

Installation Procedure

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 30: View Of Drive Belt Tensioner & Bolts
Courtesy of GENERAL MOTORS CORP.

1. Install the drive belt tensioner.

2. Install the drive belt tensioner bolts.

3. Tighten the drive belt tensioner bolts.

Tighten: Tighten the accessory drive belt tensioner bolts to 50 N.m (37 lb ft).

4. Install the accessory drive belt. Refer to Drive Belt Replacement - Accessory.

DRIVE BELT TENSIONER REPLACEMENT - AIR CONDITIONING

NOTE:

Refer to Fastener Notice .

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Removal Procedure

Fig. 31: View Of A/C Belt Tensioner
Courtesy of GENERAL MOTORS CORP.

1. Remove the air conditioning (A/C) drive belt. Refer to Air Conditioning Compressor

Belt Replacement.

2. Remove the A/C belt tensioner bolts.

3. Remove the A/C belt tensioner.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2