Engine Coolant Thermostat Housing Cleaning and Inspection. GMC Truck TopKick C-Series (Conventional) C4/C5 2004

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Mechanical - 6.6L (LLY) 🢒 Engine Coolant Thermostat Housing Cleaning and Inspection

Clean the thermostat housing.
Clean the thermostat housing mating surfaces.
Inspect the thermostat housing for cracks.
Inspect the thermostat housing mating surfaces for damage.
Replace the thermostat housing if any damage is found.