Express 3500 V8-6.6L DSL Turbo (2008)
Heater Core Case: Service and Repair
Heater Assembly Replacement
Removal Procedure
1. Remove the evaporator and blower module assembly.
2. Remove the heater assembly retaining nuts (1) from the engine compartment.
3. Remove the I/P carrier.
4. Disconnect the temperature actuator electrical connector.
5. Disconnect the vacuum lines from the actuators.
6. Remove the heater assembly.
Installation Procedure
1. Install the heater assembly.
2. Connect the vacuum lines to the actuators.
3. Connect the temperature actuator electrical connector.
4. Install the I/P carrier.
Notice: Refer to Fastener Notice.
5. Install the heater assembly retaining nuts (2) to the engine compartment.
Tighten the nuts to 6 N.m (53 lb in).
6. Install the evaporator and blower module assembly.