Engine Cooling System (Except Hybrid): Removal & Installation Lincoln MKZ I facelift

Removal and Installation

All engines

Scheme 3

ITEM DESCRIPTION TABLE

Note. The thermostat and thermostat housing are serviced as an assembly.

Scheme 4

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(ref-355922) .
2. Drain the cooling system. For additional information, refer to «Draining»(ref-355972-S18230589312010013000000) .
3. Disconnect the Knock Sensor (KS) electrical connector and detach the wiring harness pin-type retainer.
4. Disconnect the heater hose at the thermostat housing. NOTE: Disconnecting the heater hose first will aid in the removal of the bottom thermostat housing bolt.
5. Remove the 3 bolts and reposition the thermostat housing to gain access to the lower radiator hose clamp. Remove and discard the gasket. To install, tighten to 10 Nm (89 lb-in). NOTE: The view of the thermostat housing bolts is obstructed by A/C and engine components. However, the bolts can be removed using 1/4-in drive hand tools.
6. Disconnect the lower radiator hose at the thermostat housing.
7. To install, reverse the removal procedure. Install a new gasket.
8. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355972-S37681702192010013000000) .

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(ref-355922) .
2. Drain the cooling system. For additional information, refer to «Draining»(ref-355972-S18230589312010013000000) .
3. Disconnect the positive battery cable. For additional information, refer to «BATTERY DISCONNECT»(ref-355968-S30110946122010013000000) .
4. Disconnect the lower radiator hose from the thermostat housing.
5. Remove the 2 bolts, thermostat housing cover, O-ring seal and thermostat. To install, tighten to 10 Nm (89 lb-in). NOTE: Early build vehicle (built before July 6, 2009) cooling systems are filled with Motorcraft® Premium Gold Engine Coolant. Late build vehicle (built on or after July 6, 2009) cooling systems are filled with Motorcraft® Specialty Green Engine Coolant. Mixing coolant types degrades the corrosion protection of the coolant. Do not mix coolant types. Failure to follow these instructions may result in engine or cooling system damage. NOTE: To install, lubricate the thermostat housing O-ring seal with clean engine coolant.
6. To install, reverse the removal procedure. Clean and inspect the O-ring seal. Install a new seal if necessary.
7. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355972-S37681702192010013000000) .

1. Drain the cooling system. For additional information, refer to «Draining»(ref-355972-S18230589312010013000000) .
2. Remove the air cleaner and outlet pipe. For additional information, refer to «REMOVAL AND INSTALLATION»(ref-355993-S28735189342010013000000) .
3. Disconnect the lower radiator hose from the thermostat housing cover and position it aside.
4. Remove the 2 bolts, thermostat housing cover, O-ring seal and thermostat. Clean and inspect the O-ring seal. Install a new seal if necessary. To install, tighten to 10 Nm (89 lb-in).
5. To install, reverse the removal procedure. NOTE: Early build vehicle (built before July 6, 2009) cooling systems are filled with Motorcraft® Premium Gold Engine Coolant. Late build vehicle (built on or after July 6, 2009) cooling systems are filled with Motorcraft® Specialty Green Engine Coolant. Mixing coolant types degrades the corrosion protection of the coolant. Do not mix coolant types. Failure to follow these instructions may result in engine or cooling system damage. NOTE: Lubricate the thermostat O-ring seal with clean engine coolant.
6. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355972-S37681702192010013000000) .

1. Remove the thermostat. For additional information, refer to «Removal and Installation»(ref-355972-S01532809422010013000000) .
2. Disconnect the 4 coolant hoses from the thermostat housing and position them aside.
3. Remove the 2 thermostat housing bolts. To install, tighten to 10 Nm (89 lb-in).
4. Separate the thermostat housing from the coolant tube and remove the thermostat housing. Remove and discard the O-ring seals. NOTE: Do not pull the other end of the coolant tube out of the engine block when separating the thermostat housing.
5. To install, reverse the removal procedure. Lubricate the new O-ring seals with clean engine coolant. NOTE: Early build vehicle (built before July 6, 2009) cooling systems are filled with Motorcraft® Premium Gold Engine Coolant. Late build vehicle (built on or after July 6, 2009) cooling systems are filled with Motorcraft® Specialty Green Engine Coolant. Mixing coolant types degrades the corrosion protection of the coolant. Do not mix coolant types. Failure to follow these instructions may result in engine or cooling system damage.

Scheme 5

ITEM DESCRIPTION TABLE

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(ref-355922) .
2. Drain the cooling system. For additional information, refer to «Draining»(ref-355972-S18230589312010013000000) .
3. Remove the intake manifold. For additional information, refer to «REMOVAL AND INSTALLATION»(ref-355914-S00532151772010013000000) .
4. Disconnect and remove the coolant bypass tube from the engine.
5. To install, reverse the removal procedure.
6. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355972-S37681702192010013000000) .

1. Drain the cooling system. For additional information, refer to «Draining»(ref-355972-S18230589312010013000000) .
2. Remove the Throttle Body (TB). For additional information, refer to «REMOVAL AND INSTALLATION»(ref-355990-S11188385492010013000000) .
3. Remove the 2 coolant inlet pipe housing bolts. To install, tighten to 10 Nm (89 lb-in).
4. Loosen the clamp and disconnect the coolant inlet pipe from the coolant inlet pipe hose. To install, tighten to 5 Nm (44 lb-in).
5. Remove and inspect the O-ring seal, install a new seal if necessary.
6. To install, reverse the removal procedure. Lubricate the O-ring seal with clean engine coolant. NOTE: Early build vehicle (built before July 6, 2009) cooling systems are filled with Motorcraft® Premium Gold Engine Coolant. Late build vehicle (built on or after July 6, 2009) cooling systems are filled with Motorcraft® Specialty Green Engine Coolant. Mixing coolant types degrades the corrosion protection of the coolant. Do not mix coolant types. Failure to follow these instructions may result in engine or cooling system damage.
7. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355972-S37681702192010013000000) .

1. Drain the cooling system. For additional information, refer to «Draining»(ref-355972-S18230589312010013000000) .
2. Loosen the 3 coolant pump pulley bolts. To install, tighten to 20 Nm (177 lb-in).
3. Remove the accessory drive belt. For additional information, refer to «REMOVAL AND INSTALLATION»(ref-355935-S41138162192010013000000) .
4. Remove the 3 bolts and the coolant pump pulley.
5. Remove the 3 bolts and the coolant pump. Remove and discard the O-ring seal. To install, tighten to 10 Nm (89 lb-in). NOTE: Make sure the coolant pump is correctly seated to the engine block before installing and tightening the fasteners, or damage to the coolant pump may occur.
6. To install, reverse the removal procedure. Lubricate the new O-ring seal with clean engine coolant. NOTE: Early build vehicle (built before July 6, 2009) cooling systems are filled with Motorcraft® Premium Gold Engine Coolant. Late build vehicle (built on or after July 6, 2009) cooling systems are filled with Motorcraft® Specialty Green Engine Coolant. Mixing coolant types degrades the corrosion protection of the coolant. Do not mix coolant types. Failure to follow these instructions may result in engine or cooling system damage.
7. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355972-S37681702192010013000000) .

Scheme 6

ITEM DESCRIPTION TABLE

Scheme 7

ITEM DESCRIPTION TABLE

1. Drain the cooling system. For additional information, refer to «Draining»(ref-355972-S18230589312010013000000) .
2. Remove the Throttle Body (TB). For additional information, refer to «REMOVAL AND INSTALLATION»(ref-355990-S11188385492010013000000) .
3. Remove the coolant pump belt. For additional information, refer to «REMOVAL»(ref-355936-S29840355912010013000000) .
4. Disconnect the upper radiator hose from the coolant pump housing.
5. Disconnect the lower radiator hose from the thermostat housing.
6. Disconnect both heater hoses from the coolant pump housing.
7. Remove the 2 coolant inlet pipe bolts. To install, tighten to 10 Nm (89 lb-in).
8. Remove the 3 bolts, 2 nuts and the coolant pump housing. Remove and discard the O-ring seals and gasket. To install, tighten to 10 Nm (89 lb-in).
9. To install, reverse the removal procedure. Install new O-ring seals and gasket.
10. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355972-S37681702192010013000000) .

Scheme 8

ITEM DESCRIPTION TABLE

1. Drain the cooling system. For additional information, refer to «Draining»(ref-355972-S18230589312010013000000) .
2. Remove the Air Cleaner (ACL) outlet pipe. For additional information, refer to «REMOVAL AND INSTALLATION»(ref-355989-S20145104782010013000000) .
3. Disconnect the lower radiator hose from the thermostat housing.
4. Remove the coolant pump belt. For additional information, refer to «REMOVAL»(ref-355936-S29840355912010013000000) .
5. Remove the 3 bolts and the coolant pump. Remove and discard the gasket. To install, tighten to 10 Nm (89 lb-in).
6. To install, reverse the removal procedure. Install a new gasket.
7. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355972-S37681702192010013000000) .

Removal

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.

Note. On early build engines, the timing chain rides on the inner side of the RH timing chain guide. Late build engines are equipped with a different design RH timing chain guide that requires the timing chain to ride on the outer side of the RH timing chain guide. For service, all replacement RH timing chain guides will be the late build design.

All vehicles

Scheme 9

Installation

Note. Clean and inspect all sealing surfaces.

All vehicles

Scheme 10

ITEM DESCRIPTION TABLE

Scheme 11

Scheme 12

1. Detach all the wiring harness retainers from the cooling fan and shroud.
2. If equipped, detach the 2 block heater wiring retainers from the cooling fan motor and shroud.
3. Remove the splash shield.
4. Drain the cooling system. For additional information, refer to «Draining»(ref-355972-S18230589312010013000000) .
5. Detach the RH lower radiator hose pin-type retainer from the cooling fan motor and shroud.
6. If equipped, detach the 2 transmission cooler tube retainers from the cooling fan motor and shroud.
7. If equipped, detach the LH lower radiator hose pin-type retainer from the cooling fan motor and shroud.
8. Disconnect the upper radiator hose from the radiator.
9. Disconnect the cooling fan electrical connector. Detach the pin-type retainer.
10. Release the 2 tabs and remove the cooling fan motor and shroud. NOTE: LH shown, RH similar.
11. To install, reverse the removal procedure.
12. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355972-S37681702192010013000000) .

Scheme 13

ITEM DESCRIPTION TABLE

Scheme 14

ITEM DESCRIPTION TABLE

1. With vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(ref-355922) .
2. Remove the splash shield.
3. Drain the cooling system. For additional information, refer to «Draining»(ref-355972-S18230589312010013000000) .
4. Detach the lower radiator hose pin-type retainer from the RH side of the cooling fan motor and shroud.
5. Detach the lower radiator hose from the LH side of the cooling fan motor and shroud.
6. Detach the transmission cooler tube retaining clips from the cooling fan motor and shroud.
7. Remove the Air Cleaner (ACL) and inlet air resonator. For additional information, refer to «REMOVAL AND INSTALLATION»(ref-355993-S17034955402010013000000) .
8. If equipped, detach the 2 block heater wiring retainers from the cooling fan motor and shroud.
9. Disconnect the 3 cooling fan module electrical connectors.
10. Remove the bolt and the cooling fan module. To install, tighten to 7 Nm (62 lb-in).
11. Detach the 5 pin-type retainers from the cooling fan and shroud.
12. Detach the wiring harness pin-type retainer from the frame rail.
13. Disconnect the upper radiator hose from the radiator.
14. Release the 2 tabs and remove the cooling fan motor and shroud. NOTE: LH shown, RH similar.
15. To install, reverse the removal procedure.
16. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355972-S37681702192010013000000) .

Scheme 15

ITEM DESCRIPTION TABLE

Scheme 16

ITEM DESCRIPTION TABLE

Scheme 17

Scheme 18

1. Drain the cooling system. For additional information, refer to «Draining»(ref-355972-S18230589312010013000000) .
2. Remove the cooling fan motor and shroud. For additional information, refer to «Removal and Installation»(ref-355972-S02276605942010051800000) .
3. Disconnect the radiator-to-degas bottle hose from the radiator.
4. If equipped, disconnect the 2 transmission cooling tubes from the radiator. To install, tighten to 30 Nm (22 lb-ft).
5. Disconnect the lower radiator hose from the radiator.
6. Remove the 2 bolts from the upper radiator support brackets and position the radiator towards the engine and remove the 2 upper radiator support brackets from the radiator. To install, tighten to 10 Nm (89 lb-in).
7. Remove the A/C condensor-to-radiator pin-type retainer.
8. Squeeze the tabs and separate the A/C condenser from the radiator. Remove the radiator.
9. To install, reverse the removal procedure.
10. Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-355972-S37681702192010013000000) .

All vehicles