Thermostat Housing - 3.5L Ti-VCT: Installation
NOTE:
Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.
NOTE:
Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.
- Install a new thermostat housing-to-coolant inlet pipe O-ring seal and lubricate it with clean engine coolant.
- Install a new thermostat housing gasket, the thermostat and the 2 bolts.
- Tighten the 2 thermostat housing bolts in 2 stages.
- Stage 1: Tighten to 8 Nm (71 lb-in).
- Stage 2: Tighten an additional 90 degrees.
- Connect the 5 coolant hoses to the thermostat housing and position the clamp.
- Install the ACL outlet pipe. REFER to INTAKE AIR SYSTEM COMPONENTS - EXPLODED VIEW .
- Fill and bleed the cooling system. REFER to Cooling System Draining, Filling and Bleeding - 3.5L Ti-VCT .