Section 1569 (Engine Cooling System - 2500 Hd): Engine: Thermostat: Removal: 6.4L
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Do not loosen the radiator draincock with the cooling system hot and pressurized. Serious burns from the coolant can occur.
- Disconnect the negative battery cable.
- Drain the cooling system. Refer to STANDARD PROCEDURE .
- Remove the upper radiator hose from the thermostat housing and position aside.
- Disconnect the electric thermostat wire harness connector (2).
- Remove the bolts (1) and thermostat with housing assembly (3).