Engine Cooling System: Other Ford Explorer V

Material(s)

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. During normal vehicle operation, may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.

MATERIAL(S)

Fail Safe Cooling

For vehicles equipped with a 2.0L GTDI engine, a strategy is built into the PCM that will control the engine if it starts to overheat.

Stage 1 of the strategy commences if the engine starts to overheat. The CHT sensor transmits a signal to the PCM, which moves the temperature gauge pointer into the red zone.

If the engine is not switched off and the temperature continues to rise, the Powertrain Check Lamp is illuminated. This indicates to the driver that the engine is approaching critical limits and should be stopped. At this point DTC P1285 is set in the PCM which can be retrieved using a scan tool.

Stage 2 of the strategy commences if the lamp and temperature gauge are ignored by the driver. The PCM will start to control the engine by cutting out 2 cylinders and restricting the RPM to below 3, 000 RPM. Simultaneously the MIL illuminates. This indicates that long term engine damage can occur and vehicle emissions will be affected. At this point DTC P1299 is set in the PCM which can be retrieved using a scan tool.

Air is then drawn into the deactivated cylinders. This helps to control the temperature of the engine internal components. The deactivated cylinders are alternated to allow even cooling of all the cylinders.

Note. If the driver is using a high percentage of throttle travel (for example, an overtaking maneuver) when the PCM starts engine deactivation (Stage 2), the deactivation will be delayed for 10 seconds.

Note. After 2-cylinder operation has begun, the engine will not revert to 4-cylinder operation, even if the temperature should fall, until the ignition is switched off and then on again.

Note. The MIL can only be extinguished by using a scan tool after the fault has been rectified and the DTC cleared.

Stage 3 of the strategy will commence if the engine temperature continues to rise. This results in the engine being totally disabled before major engine damage or seizure occurs. The Powertrain Check Lamp will begin to flash, indicating to the driver that the engine will be switched off after 30 seconds. This allows the driver time to choose a suitable parking place.

2.0L GTDI

Note. At 38° C (100° F) ambient temperature, green arrows indicate temperature below 82° C (180° F), amber arrows indicate temperature approximately 82° C (180° F), red arrows indicate temperature above 82° C (180° F).

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Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. During normal vehicle operation, may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. During normal vehicle operation, may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. During normal vehicle operation, may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. During normal vehicle operation, may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.

Filling and Bleeding - With a Vacuum Cooling System Filler

Note. Use UVU550000 to fill the cooling system, then carry out the remaining steps to bleed all the air from the cooling system. Failure to follow these instructions can leave air in the cooling system which may damage the engine or cooling system.

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. Engine coolant provides boil protection, corrosion protection, freeze protection and cooling efficiency to the engine and cooling components. In order to obtain these protections, maintain the engine coolant at the correct concentration and fluid level in the degas bottle. To maintain the integrity of the coolant and the cooling system: Add Motorcraft® Specialty Green Engine Coolant or. Do not mix with any other type of engine coolant. Mixing coolant may degrade the coolant's corrosion protection. Do not add alcohol, methanol or brine, or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing. Ford Motor Company does NOT recommend the use of recycled engine coolant in vehicles originally equipped with Motorcraft® Specialty Green Engine Coolant or since a Ford approved recycling process is not yet available.

Note. Stop-leak pellets/products must not be used as an additive in this engine cooling system. The addition of stop-leak style pellets/products can clog or damage the cooling system resulting in degraded cooling system performance and/or failure.

1. Install UVU550000 and follow the manufacturer's instructions to fill the and bleed the cooling system. Recommended coolant concentration is 50/50 engine coolant to distilled water. For extremely cold climates less than -36.7 C (-34 F): It may be necessary to increase the coolant concentration above 50% NEVER increase the coolant concentration above 60%. Maximum coolant concentration is 60/40 for cold weather areas. A coolant concentration of 60% provides freeze protection down to -50 C (-58 F). Engine coolant concentration above 60% decreases the overheat protection characteristics of the engine coolant and may damage the engine. For extremely hot climates: It is still necessary to maintain the coolant concentration above 40%. NEVER decrease the coolant concentration below 40%. Minimum coolant concentration is 40/60 for warm weather areas. A coolant concentration of 40% provides freeze point protection down to -26.1 C (-15 F). Engine coolant concentration below 40% decreases the corrosion and freeze protection characteristics of the engine coolant and may damage the engine. Vehicle driven year-round in non-extreme climates should use a 50/50 mixture of engine coolant and distilled water for optimum cooling system and engine protection.
2. Fill the degas bottle to 25 mm (1 in) above the COLD FILL line.
3. Install the degas bottle cap until at least 1 audible click is heard.
4. Turn the climate control system off.
5. Start the engine and increase the engine speed to 3, 500 RPM and hold for 30 seconds.
6. Turn the engine off and wait for 1 minute to purge any large air pockets from the cooling system.
7. 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. Check the engine coolant level in the degas bottle and if necessary fill to 25 mm (1 in) above the top of the COLD FILL line on the degas bottle if the engine is warm or to the top of the COLD FILL line if the engine is cold.
8. Start the engine and let it idle until the engine reaches normal operating temperature and the thermostat is fully open. a fully open thermostat is verified by the cooling fan cycling on at least once.
9. Increase the engine speed to 3, 500 RPM and hold for 30 seconds.
10. Allow the engine to idle for 30 seconds.
11. Turn the engine off for 1 minute.
12. Repeat steps 9 through 11 a total of 15 times to remove any remaining air trapped in the system.
13. 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. Check the engine coolant level in the degas bottle and if necessary fill to 25 mm (1 in) above the top of the COLD FILL line on the degas bottle if the engine is warm or to the top of the COLD FILL line if the engine is cold.
14. Install the degas bottle cap until at least 1 audible click is heard.

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. During normal vehicle operation, may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.

Filling and Bleeding

Note. Use UVU550000 to fill the cooling system, then carry out the remaining steps to bleed all the air from the cooling system. Failure to follow these instructions can leave air in the cooling system which may damage the engine or cooling system.

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. If a non-specified coolant has been used the cooling system must be chemically flushed. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. Engine coolant provides boil protection, corrosion protection, freeze protection and cooling efficiency to the engine and cooling components. In order to obtain these protections, maintain the engine coolant at the correct concentration and fluid level in the degas bottle. To maintain the integrity of the coolant and the cooling system: Add Motorcraft® Specialty Green Engine Coolant or. Do not mix with any other type of engine coolant. Mixing coolant may degrade the coolant's corrosion protection. Do not add alcohol, methanol or brine, or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing. Ford Motor Company does NOT recommend the use of recycled engine coolant in vehicles originally equipped with Motorcraft® Specialty Green Engine Coolant or since a Ford approved recycling process is not yet available.

Note. Stop-leak pellets/products must not be used as an additive in this engine cooling system. The addition of stop-leak style pellets/products can clog or damage the cooling system resulting in degraded cooling system performance and/or failure.

1. Install UVU550000 and follow the manufacturer's instructions to fill the and bleed the cooling system. Recommended coolant concentration is 50/50 engine coolant to distilled water. For extremely cold climates less than -36.7 C (-34 F): It may be necessary to increase the coolant concentration above 50% NEVER increase the coolant concentration above 60%. Maximum coolant concentration is 60/40 for cold weather areas. A coolant concentration of 60% provides freeze protection down to -50 C (-58 F). Engine coolant concentration above 60% decreases the overheat protection characteristics of the engine coolant and may damage the engine. For extremely hot climates: It is still necessary to maintain the coolant concentration above 40%. NEVER decrease the coolant concentration below 40%. Minimum coolant concentration is 40/60 for warm weather areas. A coolant concentration of 40% provides freeze point protection down to -26.1 C (-15 F). Engine coolant concentration below 40% decreases the corrosion and freeze protection characteristics of the engine coolant and may damage the engine. Vehicle driven year-round in non-extreme climates should use a 50/50 mixture of engine coolant and distilled water for optimum cooling system and engine protection.
2. Fill the degas bottle to 25 mm (1 in) above the COLD FILL line.
3. Install the degas bottle cap until at least 1 audible click is heard.
4. Turn the climate control system off.
5. Start the engine and increase the engine speed to 3, 500 RPM and hold for 30 seconds.
6. Turn the engine off and wait for 1 minute to purge any large air pockets from the cooling system.
7. 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. Check the engine coolant level in the degas bottle and if necessary fill to 25 mm (1 in) above the top of the COLD FILL line on the degas bottle if the engine is warm or to the top of the COLD FILL line if the engine is cold.
8. Start the engine and let it idle until the engine reaches normal operating temperature and the thermostat is fully open. a fully open thermostat is verified by the cooling fan cycling on at least once.
9. Increase the engine speed to 3, 500 RPM and hold for 30 seconds.
10. Allow the engine to idle for 30 seconds.
11. Turn the engine off for 1 minute.
12. Repeat steps 9 through 11 a total of 15 times to remove any remaining air trapped in the system.
13. 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. Check the engine coolant level in the degas bottle and if necessary fill to 25 mm (1 in) above the top of the COLD FILL line on the degas bottle if the engine is warm or to the top of the COLD FILL line if the engine is cold.
14. Install the degas bottle cap until at least 1 audible click is heard.

General Procedure

1. Add cooling system flush to the cooling system and follow the directions on the package.
2. Drain the cooling system: REFER to «Cooling System Draining, Filling and Bleeding - 2.0L GTDI»(ref-517561-S31925988682012121200000) , or REFER to «Cooling System Draining, Filling and Bleeding - 3.5L Ti-VCT»(ref-517561-S41303553832012121200000) .
3. Remove the radiator: REFER to «Radiator - 2.0L GTDI»(ref-517561-S00497255522012121200000) , or REFER to «Radiator - 3.5L Ti-VCT»(ref-517561-S32759036082012121200000) .
4. NOTE: Radiator internal pressure must not exceed 137.9 kPa (20 psi), or the radiator can be damaged Backflush the radiator with the radiator in an upside-down position with a high-pressure hose in the lower hose location and backflush.
5. For 2.0L GTDI, remove the thermostat housing or for 3.5L Ti-VCT remove the thermostat: REFER to «Thermostat Housing - 2.0L GTDI»(ref-517561-S30977915902012121200000) , or REFER to «Thermostat - 3.5L Ti-VCT»(ref-517561-S01717569992012121200000) .
6. Position the high-pressure water hose into the engine through the upper radiator hose and backflush the engine.
7. For 2.0L GTDI, install the thermostat housing or for 3.5L Ti-VCT install the thermostat: REFER to «Thermostat Housing - 2.0L GTDI»(ref-517561-S30977915902012121200000) , or REFER to «Thermostat - 3.5L Ti-VCT»(ref-517561-S01717569992012121200000) .
8. Install the radiator: REFER to «Radiator - 2.0L GTDI»(ref-517561-S00497255522012121200000) , or REFER to «Radiator - 3.5L Ti-VCT»(ref-517561-S32759036082012121200000) .
9. Fill and bleed the cooling system: REFER to «Cooling System Draining, Filling and Bleeding - 2.0L GTDI»(ref-517561-S31925988682012121200000) , or REFER to «Cooling System Draining, Filling and Bleeding - 3.5L Ti-VCT»(ref-517561-S41303553832012121200000) .

Block Heater - 2.0L GTDI

Block Heater - 3.5L Ti-VCT

Scheme 36

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. Chemically flush the cooling system if a non-specified coolant has been used. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. During normal vehicle operation, may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.

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Cooling Fan Motor and Shroud - 2.0L GTDI

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. Chemically flush the cooling system if a non-specified coolant has been used. REFER to REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. During normal vehicle operation, may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.

Scheme 38

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. Chemically flush the cooling system if a non-specified coolant has been used. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. During normal vehicle operation, may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.

Scheme 39

Thermostat Housing - 2.0L GTDI

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. Chemically flush the cooling system if a non-specified coolant has been used. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

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Coolant Pump - 2.0L GTDI

Note. The cooling system is filled with Motorcraft® Specialty Green Engine Coolant or. Always fill the cooling system with the manufacturer's specified coolant. Chemically flush the cooling system if a non-specified coolant has been used. REFER to Cooling System Flushing . Failure to follow these instructions may damage the engine or cooling system.

Note. Use Motorcraft® Specialty Green Engine Coolant or. Use the same type of coolant that was originally used to fill the cooling system. Do not mix coolant types. Mixing coolant types degrades the coolant corrosion protection and may damage the engine or cooling system.

Note. Motorcraft® Specialty Green Engine Coolant is very sensitive to light. Do NOT allow this product to be exposed to ANY LIGHT for more than a day or two. Extended light exposure causes this product to degrade.

Note. During normal vehicle operation, may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.

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1. REFER to «Cooling System Draining, Filling and Bleeding - 2.0L GTDI»(ref-517561-S31925988682012121200000) .
2. Loosen 2 turns.
3. Discard the O-ring seal.

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1. Apply Motorcraft® Specialty Green Engine Coolant or. 10 Nm (89 lb-in).
2. Finger-tight.
3. 20 Nm (177 lb-in).
4. REFER to «Cooling System Draining, Filling and Bleeding - 2.0L GTDI»(ref-517561-S31925988682012121200000) .

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1. NOTE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan can cause engine failure. Drain the cooling system. REFER to «Cooling System Draining, Filling and Bleeding - 3.5L Ti-VCT»(ref-517561-S41303553832012121200000) .
2. Remove the engine front cover. REFER to «ENGINE FRONT COVER»(ref-517529-S05908605962012121200000) .
3. Rotate the crankshaft clockwise and align the timing marks on the intake VCT assemblies as shown in illustration.
4. Remove the 3 bolts and the LH valve train oil tube.
5. NOTE: 303-1248 will hold the camshafts in the TDC position. Install 303-1248 onto the flats of the LH camshafts.
6. Remove the 3 bolts and the RH valve train oil tube.
7. NOTE: 303-1248 will hold the camshafts in the TDC position. Install 303-1248 onto the flats of the RH camshafts.
8. NOTE: The 3 steps are for primary timing chains which have colored links that are not visible. Mark the timing chain link that aligns with the timing mark on the LH intake VCT assembly as shown in illustration.
9. Mark the timing chain link that aligns with the timing mark on the RH intake VCT assembly as shown in illustration.
10. NOTE: The crankshaft sprocket timing mark should be between the 2 colored links. Mark the 2 timing chain links that align with the timing mark on the crankshaft sprocket as shown in illustration.
11. Remove the 2 bolts and the primary timing chain tensioner.
12. Remove the primary timing chain tensioner arm.
13. Remove the 2 bolts and the primary timing chain tensioner arm.
14. NOTE: Removal of the VCT oil control solenoid will aid in the removal of the primary timing chain. NOTE: A slight twisting motion will aid in the removal of the VCT oil control solenoid. NOTE: Keep the VCT oil control solenoid free of dirt and debris. Remove the bolt and the LH intake VCT oil control solenoid.
15. NOTE: Removal of the VCT oil control solenoid will aid in the removal of the primary timing chain. NOTE: A slight twisting motion will aid in the removal of the VCT oil control solenoid. NOTE: Keep the VCT oil control solenoid free of dirt and debris. Remove the bolt and the RH intake VCT oil control solenoid.
16. Remove the primary timing chain.
17. NOTE: Do not use power tools to remove the bolt or the LH primary timing chain guide may be damaged. Remove the bolt and the upper LH primary timing chain guide.
18. NOTE: The VCT oil control solenoids are removed for clarity. NOTE: 303-1530 is inserted through a hole in the top of the mega cap. Compress the RH secondary timing chain tensioner guide and let install 303-1530 in the hole on the rear of the secondary timing chain tensioner guide and let it hold against the mega cap to retain the tensioner in the collapsed position.
19. Remove and discard the 2 RH VCT assembly bolts.
20. Remove the 2 RH VCT assemblies and the secondary timing chain.
21. NOTE: Do not use power tools to remove the bolt or the RH primary timing chain guide may be damaged. Remove the bolt and the RH primary timing chain guide.
22. Place clean, lint-free shop towels in the oil pan opening to prevent coolant from entering the oil pan during coolant pump removal.
23. Remove the 8 bolts, the coolant pump and the gaskets. Discard the gaskets.

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1. Install 2 new gaskets, the coolant pump and the 8 bolts. Install the bolts finger tight.
2. Tighten the coolant pump bolts in the sequence shown in illustration in 2 stages. Stage 1: Tighten to 10 Nm (89 lb-in). Stage 2: Tighten an additional 45 degrees.
3. Remove all of the shop towels from the oil pan opening.
4. NOTE: Drain any coolant that has accumulated in the oil pan and clean any residual coolant from the front of the engine and the oil pan. Failure to remove all traces of the coolant can result in oil contamination and severe engine damage. Remove the oil pan drain plug and allow any accumulated coolant to drain. Remove any residual coolant from the front of the engine and the oil pan using regulated compressed air and clean lint-free shop towels. Install the oil pan drain plug and tighten to 27 Nm (20 lb-ft).
5. Install the RH primary timing chain guide and the bolt. Tighten to 10 Nm (89 lb-in).
6. Assemble the RH VCT assembly, the RH exhaust camshaft sprocket and the RH secondary timing chain. Align the colored links with the timing marks.
7. NOTE: It may be necessary to rotate the camshafts slightly to install the RH secondary timing assembly. Position the 2 RH VCT assemblies and secondary timing chain on the camshafts by aligning the holes in the VCT assemblies with the dowel pins in the camshafts.
8. Install the 2 new RH VCT assembly bolts and tighten in 4 stages. Stage 1: Tighten to 40 Nm (30 lb-ft). Stage 2: Loosen one full turn. Stage 3: Tighten to 25 Nm (18 lb-ft). Stage 4: Tighten an additional 180 degrees.
9. NOTE: The VCT oil control solenoids are removed for clarity. Compress the RH secondary timing chain tensioner and remove 303-1530 . Make sure the secondary timing chain is centered on the timing chain tensioner guides.
10. Install the upper LH timing chain guide and the bolt. Tighten to 10 Nm (89 lb-in).
11. NOTE: It may be necessary to rotate the camshafts slightly to align the timing marks. Install the primary timing chain with the colored links aligned with the timing marks on the VCT assemblies and the crankshaft sprocket.
12. Install the lower LH primary timing chain guide and the 2 bolts. Tighten to 10 Nm (89 lb-in).
13. Install the primary timing chain tensioner arm.
14. Reset the primary timing chain tensioner. Release the ratchet detent. Using a soft-jawed vice, compress the ratchet plunger. Align the hole in the ratchet plunger with the hole in the tensioner housing. Install a lockpin.
15. NOTE: It may be necessary to rotate the camshafts slightly to remove slack from the timing chain to install the tensioner. Install the primary tensioner and the 2 bolts. Tighten to 10 Nm (89 lb-in). Remove the lockpin.
16. As a post-check, verify the correct alignment of all timing marks. There are 48 links between the RH intake VCT assembly colored link (1) and the LH intake VCT assembly colored link (2). There are 35 Links between the LH intake VCT assembly colored link (2) and the 2 crankshaft sprocket colored links (3).
17. NOTE: Do not use excessive force when installing the VCT oil control solenoid. Damage to the mega cap could cause the cylinder head to be inoperable. If it is difficult to install the VCT oil control solenoid, inspect the bore and the VCT oil control solenoid to make sure there are no burrs, sharp edges or contaminants present on the mating surface. Only clean the external surfaces as necessary. NOTE: A slight twisting motion will aid in the installation of the VCT oil control solenoid. NOTE: Keep the VCT oil control solenoid clean of dirt and debris. Install the LH intake VCT oil control solenoid and the bolt. Tighten the bolt in 2 stages. Stage 1: Tighten to 8 Nm (71 lb-in). Stage 2: Tighten an additional 20 degrees.
18. NOTE: Do not use excessive force when installing the VCT oil control solenoid. Damage to the mega cap could cause the cylinder head to be inoperable. If it is difficult to install the VCT oil control solenoid, inspect the bore and the VCT oil control solenoid to make sure there are no burrs, sharp edges or contaminants present on the mating surface. Only clean the external surfaces as necessary. NOTE: A slight twisting motion will aid in the installation of the VCT oil control solenoid. NOTE: Keep the VCT oil control solenoid clean of dirt and debris. Install the RH intake VCT oil control solenoid and the bolt. Tighten the bolt in 2 stages. Stage 1: Tighten to 8 Nm (71 lb-in). Stage 2: Tighten an additional 20 degrees.
19. Remove the RH 303-1248 .
20. Install the RH valve train oil tube and the 3 bolts. Tighten the 3 bolts in 2 stages. Stage 1: Tighten to 8 Nm (71 lb-in). Stage 2: Tighten an additional 45 degrees.
21. Remove the LH 303-1248 .
22. Install the LH valve train oil tube and the 3 bolts. Tighten the 3 bolts in 2 stages. Stage 1: Tighten to 8 Nm (71 lb-in). Stage 2: Tighten an additional 45 degrees.
23. Install the engine front cover. REFER to «ENGINE FRONT COVER»(ref-517529-S05908605962012121200000) .
24. Remove and discard the engine oil filter.
25. NOTE: Lubricate the engine oil filter gasket with clean engine oil prior to installation. Install a new engine oil filter. Tighten the engine oil filter in 2 stages. Stage 1: Tighten to 5 Nm (44 lb-in). Stage 2: Tighten an additional 180 degrees.
26. Fill the engine with clean engine oil.
27. Fill and bleed the cooling system. REFER to «Cooling System Draining, Filling and Bleeding - 3.5L Ti-VCT»(ref-517561-S41303553832012121200000) .