Engine Cooling System: Other Ford Taurus VI

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Coolant Flow Diagram - 3.5L

Note. Black arrows indicate hot, white arrows indicate cold.

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Coolant Flow Diagram - 3.5L Gasoline Turbocharged Direct Injection (GTDI)

Note. Black arrows indicate hot, white arrows indicate cold.

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Thermostat

A new thermostat should be installed only after the following tests and checks have been carried out

1. Pinpoint Test A, B or C
2. Thermostat Visual Inspection

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1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(ref-355694) .
2. Release the pressure in the cooling system by slowly turning the pressure relief cap one half to one turn counterclockwise to the first stop on the filler neck. When the pressure has been released, remove the pressure relief cap.
3. Remove the 7 bolts, 3 pin-type retainers and the front splash shield.
4. Place a suitable container below the radiator draincock. Open the radiator draincock and drain the coolant.
5. Close the radiator draincock.
6. Install the front splash shield, 3 pin-type retainers and the 7 bolts, when the cooling system or engine service is finished.

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1. Install the RADIATOR REFILLER and follow the manufacturer's instructions to fill and bleed the cooling system. Recommended coolant concentration is 50/50 ethylene glycol to distilled water. Maximum coolant concentration is 60/40 for cold weather areas. Minimum coolant concentration is 40/60 for warm weather areas.

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Note. To remove rust, sludge and other foreign material from the cooling system, use cooling system flush that is safe for use with aluminum radiators. For additional information, refer to SPECIFICATIONS . This cleaning restores cooling system efficiency and helps prevent overheating. A pulsating or reversed direction of flushing water will loosen sediment more quickly than a steady flow in the normal coolant flow direction. In severe cases where cleaning solvents will not clean the cooling system efficiently, it will be necessary to use the pressure flushing method using cooling system flusher. Dispose of old coolant and flushing water contaminated with antifreeze and cleaning chemicals in accordance with local, state or federal laws.

1. Add Premium Cooling System Flush to the cooling system and follow the directions on the package.
2. Drain the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355745-S42102587062010012800000) .
3. Remove the radiator. For additional information, refer to «RADIATOR - 3.5L»(ref-355745-S20445151362010012800000) or «RADIATOR - 3.5L GTDI»(ref-355745-S24617089712010012800000) .
4. Backflush the radiator with the radiator in an upside-down position with a high-pressure hose in the lower hose location and backflush.
5. Remove the thermostat. For additional information, refer to «THERMOSTAT»(ref-355745-S31274572892010012800000) .
6. Backflush the engine. Position the high-pressure water hose into the engine through the engine return and backflush the engine.
7. Install the thermostat. For additional information, refer to «THERMOSTAT»(ref-355745-S31274572892010012800000) .
8. Install the radiator. For additional information, refer to «RADIATOR - 3.5L»(ref-355745-S20445151362010012800000) or «RADIATOR - 3.5L GTDI»(ref-355745-S24617089712010012800000) .
9. Fill the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355745-S42102587062010012800000) .

Block Heater

Note. 3.5L shown in illustration, 3.5L Gasoline Turbocharged Direct Injection (GTDI) similar.

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Note. 3.5L shown in illustration, 3.5L Gasoline Turbocharged Direct Injection (GTDI) similar.

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3.5L Engine

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3.5L Gasoline Turbocharged Direct Injection (GTDI) Engine

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Note. LH cylinder head, upper and lower intake manifold are removed for clarity.

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1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(ref-355694) .
2. Remove the 4 retainers and the underbody shield.
3. Drain the cooling system. For additional information, refer to «Cooling System Draining, Filling and Bleeding»(ref-355745-S42102587062010012800000) .
4. Remove the 2 banjo bolts and the LH turbocharger coolant tubes. Discard the sealing washers.
5. Remove the intake manifold. For additional information, refer to «ENGINE - 3.5L GTDI»(ref-355691) .
6. Remove the battery tray. For additional information, refer to «BATTERY, MOUNTING AND CABLES»(ref-355735) .
7. Remove the starter motor. For additional information, refer to «STARTING SYSTEM»(ref-355743) .
8. Detach the wiring harness pin-type retainer from the transaxle shift cable bracket.
9. Remove 3 bolts and the transaxle shift cable bracket.
10. Remove the RH cylinder head bolt and the ground wire.
11. Disconnect the wastegate control valve hose.
12. Remove the LH coolant tube bracket-to-cylinder head nut and position the coolant tubes aside.
13. Disconnect the 2 LH turbocharger coolant tubes.
14. While pulling the coolant tube out, rotate the coolant tube counterclockwise one full turn and remove. Remove and discard the O-ring seal.

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Degas Bottle

Note. 3.5L Gasoline Turbocharged Direct Injection (GTDI) vehicles are not equipped with power steering reservoirs.

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