mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

Thermostat, Engine Cooling|Service and Repair|Page 2154 > < Cylinder Head Temperature (CHT) Sensor|Page 2150
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Thermostat: Service and Repair

Thermostat - 4.6L (3V)

Removal and Installation

1. Drain the cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding  See: Service and Repair/Cooling

System Draining, Filling and Bleeding.

2. Remove the Throttle Body (TB). For additional information, refer to Fuel Delivery and Air Induction.

3. Disconnect the fuel vapor tube.

4. Remove the bolts and position the thermostat housing cover aside.

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

Installation

1. Install the thermostat with the spring facing down.

2. NOTE: Inspect the thermostat housing cover O-ring seal. Install a new O-ring seal, if necessary.

Install the O-ring seal.

3. Position the thermostat housing cover and the bolts.

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Tighten to 10 Nm (89 lb-in).

Thermostat, Engine Cooling|Service and Repair|Page 2154 > < Cylinder Head Temperature (CHT) Sensor|Page 2150