Ford 2003 Mustang Workshop Manual page 1870

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SECTION 303-03A: Engine Cooling

REMOVAL AND INSTALLATION

Thermostat —4.6L(4V)

Motorcraft Premium Gold

Engine Coolant

VC-7-A (in Oregon VC-7-B)

(yellow color)

Removal and Installation

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

2. Drain the engine coolant. For additional information, refer to

and Bleeding

in this section.

3. Remove the thermostat housing bolts.

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.

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.

Specification

2003 Mustang Workshop Manual

Cooling System Draining, Filling

Section 100-

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