Ford Mustang (1999-2004) Service Manual: Thermostat - 4.6L(4V)

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. With the vehicle in neutral, position it on a hoist. For additional information, refer to Section.

2. Drain the engine coolant. For additional information, refer to Cooling System Draining, Filling and Bleeding in this section.

3. Remove the thermostat housing bolts.

Thermostat - 4.6L(4V)

4. Remove the coolant thermostat.

1. Separate the thermostat housing.

2. Remove the coolant thermostat and the O-ring seal.

  • Inspect the O-ring seal. Install a new seal, if necessary.

Thermostat - 4.6L(4V)

5. NOTE: The thermostat is indexed and must be returned to the original location.

NOTE: Make sure the new O-ring seal is secure around the thermostat.

To install, reverse the removal procedure.

6. Fill the cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding in this section.

    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 ...

    Bypass Tube - 3.8L
    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:

    Climate Control System (Diagnosis and Testing)
    Refer to Wiring Diagrams Cell 54 , Air Conditioner/Heater for schematic and connector information. Special Tool(s) Connector, Refrigerant Pressure Line 412-093 (T94P-19623-E) Set, A/C Fittings 412-DS028 (014-00333, D93L- 19703 ...

    Engine coolant check
    Checking the Engine Coolant The concentration and level of engine coolant should be checked at the intervals listed in Scheduled Maintenance Information. Note: Make sure that the level is at the FULL COLD level or within the COLD FILL RANGE in the coolant res ...

    Valve Cover RH
    Removal and Installation 1. Remove the throttle body. For additional information, refer to Section. 2. Disconnect the crankcase vent hose. 3. Remove the differential feedback exhaust gas recirculation (EGR) system vacuum hoses and the bracket bolts. Po ...