Chevrolet Silverado / GMC Sierra. Manual

Fig. 326: View Of Engine Wiring Harness & Components
Courtesy of GENERAL MOTORS CORP.

30. Disconnect the following electrical connectors:

Evaporative emission (EVAP) canister purge solenoid valve (1)

Manifold absolute pressure (MAP) sensor

31. Disconnect the engine wiring harness electrical connector (2) from the throttle body.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 327: View Of Ground Strap And CMP & Fuel Pump/Oil Pressure Sensor
Connectors
Courtesy of GENERAL MOTORS CORP.

32. Disconnect the following electrical connectors:

Knock sensor (1)

Camshaft position (CMP) sensor (2)

Fuel pump/oil pressure sensor (3)

33. Remove the harness ground bolt.

34. Reposition the harness ground (4) and ground strap (5).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 328: View Of Engine Wiring Harness Bracket & Nuts
Courtesy of GENERAL MOTORS CORP.

35. Remove the engine wiring harness bracket nuts.

36. Remove the engine wiring harness bracket from the studs.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Fig. 329: View Of Junction Block Bracket Bolts
Courtesy of GENERAL MOTORS CORP.

37. Remove the junction block bracket bolt.

38. Reposition the bracket and wiring harness aside.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Chevrolet Silverado / GMC Sierra. Manual - part 101