Chevrolet Silverado / GMC Sierra. Service manual — part 309

Fig. 261: Identifying Six Studs & One Bolt Securing Transmission To Engine
Courtesy of GENERAL MOTORS CORP.

51. Remove the automatic transmission bolt/studs.

52. Separate the engine from the automatic transmission.

Install the J 21366 . See Special Tools.

53. Lower the vehicle.

54. Install an engine hoist to the J 41798 . See Special Tools.

55. Install a floor jack under the transmission for support.

NOTE:

Use care while moving the engine assembly in order to avoid

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

56. Remove the engine.

57. Install the engine to an engine stand.

58. Remove the engine hoist.

Fig. 262: View Of J 41798
Courtesy of GENERAL MOTORS CORP.

59. Remove the J 41798 . See Special Tools.

breaking the MAP sensor locating tabs. Broken MAP sensor
tabs may result in decreased engine performance.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Installation Procedure

Fig. 263: View Of J 41798
Courtesy of GENERAL MOTORS CORP.

1. Install the J 41798 to the engine. See Special Tools.

Tighten:

Tighten the M8 engine lift bracket bolts to 25 N.m (18 lb ft).

NOTE:

Refer to Fastener Notice .

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Tighten the M10 engine lift bracket bolts to 50 N.m (37 lb ft).

2. Install an engine hoist to the J 41798 . See Special Tools.

3. Remove the engine from the engine stand.

4. Install the engine to the vehicle.

5. Align the engine and transmission.

Fig. 264: View Of Engine Mount-To-Engine Mount Bracket

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2