Thermostat: Service and Repair

Thermostat - 3.5L Ti-VCT

Material(s)

NOTICE: The cooling system is filled with Motorcraft(R) Specialty Green Engine Coolant. Always fill the cooling system with the manufacturer's specified coolant. Chemically flush the cooling system if a non-specified coolant has been used. REFER to Cooling System Flushing. Failure to follow these instructions may damage the engine or cooling system Cooling System Flushing.

NOTICE: Use Motorcraft(R) Specialty Green Engine Coolant. 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.

NOTICE: Motorcraft(R) 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.






Exploded View











Removal

1. Drain the cooling system. REFER to Cooling System Draining, Filling and Bleeding Cooling System Draining, Filling and Bleeding.

2. Remove the ACL (Air Cleaner) outlet pipe. REFER to Intake Air System Components - Exploded View [1][2]Diagrams.

3. Remove the 2 bolts and position the coolant inlet connection aside.

4. Remove the thermostat and the O-ring seal.

- Discard the O-ring seal.

Installation

1. NOTICE: Use Motorcraft(R) Specialty Green Engine Coolant. 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.

NOTICE: Motorcraft(R) 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 O-ring seal and the thermostat.

- Lubricate the O-ring seal with clean engine coolant.

2. Position the coolant inlet connector and install the 2 bolts.

- 10 Nm (89 lb-in).

3. Install the ACL (Air Cleaner) outlet pipe. REFER to Intake Air System Components - Exploded View [1][2]Diagrams.

4. Fill and bleed the cooling system. REFER to Cooling System Draining, Filling and Bleeding Cooling System Draining, Filling and Bleeding.