Coolant Bypass Valve Replacement for Pontiac Sunfire 2001

1. Drain the engine coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
2. Remove the heater hoses. Refer to Heater Hoses Replacement .
3. Remove the clamps and the heater hoses from the heater water flow control/bypass valve.

1. Install the heater hoses and clamps on the heater water flow control/bypass valve.
2. Install the heater hoses. Refer to Heater Hoses Replacement .
3. Fill the engine cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.