Engine Cooling System: Other Ford Flex I

Coolant Flow Diagram - 3.5L

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

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PARTS DESCRIPTION CHART

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

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

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PARTS DESCRIPTION CHART

Material

MATERIAL SPECIFICATIONS

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

MATERIAL SPECIFICATIONS

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1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, Refer to «JACKING AND LIFTING»(ref-372753) .
2. WARNING: Always allow the engine to cool before opening the cooling system. Do not unscrew the coolant pressure relief cap when the engine is operating or the cooling system is hot. The cooling system is under pressure; steam and hot liquid can come out forcefully when the cap is loosened slightly. Failure to follow these instructions may result in serious personal injury. NOTE: The coolant must be recovered in a suitable, clean container for reuse. If the coolant is contaminated it must be recycled or disposed of correctly. Using contaminated coolant may result in damage to the engine or cooling system components. NOTE: The engine cooling system is filled with Motorcraft® Specialty Green Engine Coolant. Mixing coolant types degrades the corrosion protection of Motorcraft® Specialty Green Engine Coolant. Do not mix coolant types. Failure to follow these instructions may result in engine or cooling system damage. NOTE: Genuine Mazda® Extended Life Coolant and Motorcraft® Specialty Green Engine Coolant are very sensitive to light. Do NOT allow these products to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes these products to degrade. NOTE: Stop-leak style pellets/products must not be used as an additive in this engine cooling system. The addition of stop-leak style pellets/products may clog or damage the cooling system, resulting in degraded cooling system performance and/or failure. NOTE: Less than 80% of coolant capacity can be recovered with the engine in the vehicle. Dirty, rusty or contaminated coolant requires replacement. 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. 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.

MATERIAL SPECIFICATIONS

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-372804-S37252844852010093000000) .
3. Remove the radiator. For additional information, refer to «RADIATOR - 3.5L»(ref-372804-S42151172032010093000000) or «RADIATOR - 3.5L GTDI»(ref-372804-S42913190592010093000000) .
4. NOTE: Radiator internal pressure must not exceed 138 kPa (20 psi). Damage to the radiator can result. 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-372804-S03174936212010093000000) .
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-372804-S03174936212010093000000) .
8. Install the radiator. For additional information, refer to «RADIATOR - 3.5L»(ref-372804-S42151172032010093000000) or «RADIATOR - 3.5L GTDI»(ref-372804-S42913190592010093000000) .
9. Fill the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-372804-S37252844852010093000000) .

Block Heater

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

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PARTS DESCRIPTION CHART

MATERIAL SPECIFICATIONS

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

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PARTS DESCRIPTION CHART

MATERIAL SPECIFICATIONS

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PARTS DESCRIPTION CHART

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PARTS DESCRIPTION CHART

MATERIAL SPECIFICATIONS

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

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MATERIAL SPECIFICATIONS

Coolant Inlet Pipe (View 1 of 2)

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PARTS DESCRIPTION CHART

Coolant Inlet Pipe (View 2 of 2)

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PARTS DESCRIPTION CHART

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1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, Refer to «JACKING AND LIFTING»(ref-372753) .
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-372804-S37252844852010093000000) .
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-372750) .
6. Remove the battery tray. For additional information, Refer to «BATTERY, MOUNTING AND CABLES»(ref-372793) .
7. Remove the starter motor. For additional information, Refer to «STARTING SYSTEM»(ref-372803) .
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 ground wire bolt and the ground wire.
11. Disconnect the turbocharger wastegate regulating 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.

MATERIAL SPECIFICATIONS

Cooling Fan Motor and Shroud - 3.5L GTDI

Cooling Fan and Shroud (View 1 of 3)

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PARTS DESCRIPTION CHART

Cooling Fan and Shroud (View 2 of 3)

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PARTS DESCRIPTION CHART

Cooling Fan and Shroud (View 3 of 3)

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PARTS DESCRIPTION CHART

Degas Bottle

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

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PARTS DESCRIPTION CHART