Sierra 1500 2WD V6-4.3L (2008)
7. Open the heater inlet hose clamp and remove the hose from the water pump.
8. Reposition the heater inlet and outlet hoses.
9. Disconnect the engine wiring harness electrical connector (2) from the throttle body.
10. Disconnect the following electrical connectors:
*
The A/C pressure switch (1), if equipped
*
The air conditioning (A/C) compressor clutch (2), if equipped
