Hummer H3. Manual — part 361

Fig. 291: View Of Engine Wiring Harness
Courtesy of GENERAL MOTORS CORP.

28. Connect the engine wiring harness retainer (5) to the engine oil pan rail.

29. Install the 3 bolts securing the engine wiring ground leads (2) to the engine block.

Tighten: Tighten the engine wiring ground lead bolts to 20 N.m (15 lb ft).

30. Lower the vehicle to chest level in order to access the components through the wheelhouse.

31. Connect the engine wiring harness connector (3) to the CKP sensor (1).

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 292: Identifying A/C Compressor & Bolts
Courtesy of GENERAL MOTORS CORP.

32. Install the A/C compressor and bolts, if equipped.

Tighten: Tighten the bolts to 50 N.m (37 lb ft).

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 293: Identifying A/C Evaporator Line
Courtesy of GENERAL MOTORS CORP.

33. Install the A/C evaporator line to the compressor and install the bolt at the A/C compressor,

if equipped.

Tighten: Tighten the bolt to 16 N.m (12 lb ft).

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 294: View Of A/C Condenser Line Bolt & A/C Compressor
Courtesy of GENERAL MOTORS CORP.

34. Install the A/C condenser line to the compressor and install the bolt at the A/C compressor,

if equipped.

Tighten: Tighten the bolts to 16 N.m (12 lb ft).

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3