Ford Mustang (1999-2004) Service Manual: Thermostat - 3.8L
Material
| Item | Specification |
| Gasket Adhesive TA-6 or equivalent | WSS-M2G408- A |
| Motorcraft Premium Gold Engine Coolant VC-7-A (in Oregon VC-7-B) (yellow color) | WSS-M97B51- A1 |
Removal and Installation
1. Drain the engine coolant. For additional information, refer to Cooling System Draining, Filling and Bleeding in this section.
2. Disconnect the upper radiator hose from the coolant hose connection.

3. Remove the thermostat housing.
- Remove the bolts.

4. Remove the thermostat.
- Clean and inspect the water outlet connection.
- Discard the thermostat gasket, and clean and inspect the mating surface.

5. Clean and inspect the thermostat mating surface at the engine.

6. NOTE: The thermostat is indexed and must be returned to the original location.
NOTE: Coat the new thermostat gasket with gasket adhesive.
NOTE: Make sure the new O-ring gasket is secure around the thermostat.
To install, reverse the removal procedure.
7. Fill the cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding in this section.
Heater Core Backflushing
Special Tool(s)
Flush Kit
164-R3658 or equivalent
Drain Kit
164-R3662 or equivalent
Material
Item
Specification
Motorcraft Premium Cooling
System Flush ...
Thermostat - 4.6L(2V)
Material
Item
Specification
Motorcraft Premium Gold
Engine Coolant
VC-7-A (in Oregon VC-7-B)
(yellow color)
WSS-M97B51-
A1
Removal and Installation
1. Drain the engine coola ...
Other materials:
Key Programming - Program a Key Using Two
Programmed Keys
Special Tool(s)
Worldwide Diagnostic System
(WDS)
418-F224,
New Generation STAR (NGS)
Tester
418-F052, or equivalent
diagnostic tool
NOTE: This procedure only works if two or more programmed ignition keys are
available and it is
desi ...
Transmission Fluid Cooler - Backflushing and Cleaning
1. CAUTION: Do not use any supplemental transmission fluid
additives or cleaning
agents. The use of these products could cause internal transmission
components to fail;
this will effect the operation of the transmission.
Conduct backflushing with a sui ...
Camshaft
Special Tool(s)
Holding Tool, Camshaft
303-446 (T93P-6256-AHR)
Material
Item
Specification
Super Premium SAE 5W-20
Engine Oil
XO-5W20-QSP or equivalent
WSS-M2C153-
H
...
