Removal Procedure
- Partially drain the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM (LY7 GE 47716 FILL) and DRAINING AND FILLING COOLING SYSTEM (LY7 STATIC FILL) .
- Remove the heater pipe outlet hose (1) from the heater outlet pipe.
- Remove the heater inlet pipe. Refer to REMOVAL PROCEDURE .
- Remove the heater outlet pipe (1).
- Remove the heater outlet pipe O-ring (2). Discard O-ring.