Chevrolet Silverado / GMC Sierra. Manual - part 34
Fig. 78: Intake Manifold Hose
Courtesy of GENERAL MOTORS CORP.
6. Open the heater outlet hose clamp and remove the hose from the intake manifold.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 79: Heater Inlet Hose At Water Pump
Courtesy of GENERAL MOTORS CORP.
7. Open the heater inlet hose clamp and remove the hose from the water pump.
8. Reposition the heater inlet and outlet hoses.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado
Fig. 80: View Of Engine Wiring Harness & Components
Courtesy of GENERAL MOTORS CORP.
9. 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. 81: View Of A/C Pressure Switch & Compressor Clutch Connectors
Courtesy of GENERAL MOTORS CORP.
10. Disconnect the following electrical connectors:
The A/C pressure switch (1), if equipped
The air conditioning (A/C) compressor clutch (2), if equipped
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado