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.

Thermostat - 3.8L

3. Remove the thermostat housing.

  • Remove the bolts.

Thermostat - 3.8L

4. Remove the thermostat.

  • Clean and inspect the water outlet connection.
  • Discard the thermostat gasket, and clean and inspect the mating surface.

Thermostat - 3.8L

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

Thermostat - 3.8L

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:

    Steering System (Description and Operation)
    The steering system has a typical rack-and-pinion design consisting of the following: Steering System Components - 3.8L Engine (CII Power Steering Pump)   Steering System Components - 4.6L Engine (CIII Power Steering Pump)   ...

    Fuel consumption
    Filling the Tank The advertised capacity is the indicated capacity and the empty reserve combined. Indicated capacity is the difference in the amount of fuel in a full tank and a tank when the fuel gauge indicates empty. Empty reserve is the amount of fuel in ...

    In California (U.S. Only)
    California Civil Code Section 1793.2(d) requires that, if a manufacturer or its representative is unable to repair a motor vehicle to conform to the vehicle’s applicable express warranty after a reasonable number of attempts, the manufacturer shall be requir ...