Hummer H3. Manual — part 349

Fig. 245: View Of Power Steering Pump & Engine Wiring Harness Retainers
Courtesy of GENERAL MOTORS CORP.

15. Disconnect the engine wiring harness retainers (1) from the power steering pump (2).

16. Disconnect the engine wiring harness connectors from the following components:

The electric motor actuator connector

The oil pressure switch

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 246: View Of CMP Sensor Connector, Exhaust Camshaft Actuator Connector
& Engine Wiring Harness Retainer
Courtesy of GENERAL MOTORS CORP.

17. Disconnect the engine wiring harness retainer (2) from the camshaft cover (3).

18. Disconnect the engine wiring harness connectors from the following components:

The exhaust camshaft position (CMP) sensor (5)

The exhaust camshaft actuator (6)

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 247: View Of ECT Sensor, Fuel Injector, Ignition Coil & HO2S Engine Wiring
Harness Electrical Connectors
Courtesy of GENERAL MOTORS CORP.

19. Disconnect the engine wiring harness connectors from the following components:

The engine coolant temperature (ECT) sensor (1)

The fuel injector harness (2)

The ignition coils (4)

The heated oxygen sensor (HO2S) (5)

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3

Fig. 248: View Of Engine Wiring Harness Connections To Camshaft Cover &
Throttle Body
Courtesy of GENERAL MOTORS CORP.

20. Disconnect the engine wiring harness retainer (3) from the camshaft cover (4).

21. Disconnect the engine wiring harness connector (2) from the throttle body (1).

2007 Hummer H3

2007 ENGINE Engine Mechanical - 3.7L - H3