LaCrosse V6-3.6L VIN 7 (2006)
Thermostat Housing: Service and Repair
Thermostat Housing Replacement (LY7)
Removal Procedure
1. Disconnect the heater hoses from the heater core.
2. Remove the thermostat.
3. Remove the thermostat housing bolts.
4. Remove the thermostat housing with the heater pipes, hoses and bolts.
5. Carefully clean the sealing surfaces with a plastic gasket scraper such as J 28410 or equivalent.
Installation Procedure
1. Assemble the heater pipes and hoses to the thermostat housing.
2. Install a new gasket to the thermostat housing.
3. Install the thermostat housing bolts to the thermostat housing. Partially install the thermostat housing bolts in order to retain the gasket.
4. Install the thermostat housing with the heater pipes, heater hoses, gasket and bolts.
5. Notice: Refer to Fastener Notice in Service Precautions.
Install the thermostat housing bolts.
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Tighten the thermostat housing bolts to 20 Nm (15 ft. lbs.).
6. Install the thermostat.
7. Connect the heater hoses to the heater core.