Thermostat: Service and Repair

Engine Coolant Thermostat Replacement (6.0L Engine)

Removal Procedure

Non Registered Notice: Refer To PSD SIE TITLE Error: SIE linked to empty Cell ID 120919 General Repair Instructions


Notice: The thermostat and thermostat housing are serviced as a complete assembly, they should only be separated if back flush is to be carried out.


1. Remove the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement (6.0L Engine) (Service and Repair) .
2. Place thermostat housing in a soft jaw vice.




Caution: Refer to Safety Glasses Caution (Safety Glasses Warning) .
3. Press and rotate the springs of the thermostat to release it from the thermostat housing.
4. Remove the thermostat from the thermostat housing.



Installation Procedure





1. Assure that the air bleed ball (1) is not jammed by slightly shaking the assembly.




2. Place the thermostat (1) assembly into the thermostat housing (2).
3. Install the thermostat, by rotating and locking it into the thermostat housing.