Removal and Installation
Note. The thermostat and thermostat housing are serviced as an assembly.
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(ref-232183) .
- Drain the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-232208-S29468430532006051600000) .
- Remove the accessory drive belt tensioner. For additional information, refer to «ACCESSORY DRIVE - HYBRID»(ref-232226) .
- Disconnect the heater hose at the thermostat housing.
- Disconnect the lower radiator hose at the thermostat housing.
- Remove the 3 bolts, thermostat housing and gasket. To install, tighten to 10 Nm (89 lb-in).
- To install, reverse the removal procedure. Clean and inspect the gasket, replace if necessary.
- Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-232208-S29468430532006051600000) .
Scheme 43
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(ref-232183) .
- Drain the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-232208-S29468430532006051600000) .
- Remove the intake manifold. For additional information, refer to «ENGINE - HYBRID 2.3L»(ref-232196) .
- Disconnect and remove the coolant bypass tube.
- To install, reverse the removal procedure.
- Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-232208-S29468430532006051600000) .
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(ref-232183) .
- Drain the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-232208-S29468430532006051600000) .
- Remove the accessory drive belt. For additional information, refer to «ACCESSORY DRIVE - HYBRID»(ref-232226) .
- Remove the 3 bolts and the coolant pump pulley. To install, tighten to 25 Nm (18 lb-ft).
- Remove the 3 bolts and the coolant pump. Remove and discard the O-ring seal. To install, tighten to 10 Nm (89 lb-in).
- To install, reverse the removal procedure. Lubricate the O-ring seal with clean engine coolant.
- Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-232208-S29468430532006051600000) .
Scheme 44
- With vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(ref-232183) .
- Remove the radiator grille. For additional information, refer to «EXTERIOR TRIM AND ORNAMENTATION»(ref-232267) .
- Remove the front impact severity sensor. For additional information, refer to «SUPPLEMENTAL RESTRAINT SYSTEM»(ref-232255) .
- Remove the 4 bolts and the 2 radiator brackets. To install, tighten to 10 Nm (89 lb-in).
- Disconnect the hood switch electrical connector.
- Remove the 3 relay box bracket bolts and position the relay box and bracket aside. To install, tighten to 10 Nm (89 lb-in).
- Remove the center support lower bolt. To install, tighten to 10 Nm (89 lb-in).
- Remove the nut and the center support. To install, tighten to 10 Nm (89 lb-in).
- Remove the 2 bolts and position the auxiliary coolant pump aside. To install, tighten to 7 Nm (62 lb-in).
- Disconnect the cooling fan resistor electrical connector.
- Disconnect the 2 cooling fan electrical connectors
- Remove the 6 cooling fan bolts. To install, tighten to 8 Nm (71 lb-in).
- Remove the LH and the RH cooling fans.
- To install, reverse the removal procedure.
Scheme 45
- With vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(ref-232183) .
- Drain the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-232208-S29468430532006051600000) .
- Drain the motor electronics cooling system. For additional information, refer to «TRANSAXLE-TRANSMISSION COOLING - HYBRID»(ref-232264) .
- Remove the cooling fan motor and shroud. For additional information, refer to «COOLING FAN MOTOR AND SHROUD»(ref-232208-S35371371472006051600000) .
- Disconnect the upper hose from the motor electronics radiator.
- Remove the 2 motor electronics radiator-to-engine radiator bolts and position the motor electronics radiator aside. To install, tighten to 6 Nm (53 lb-in).
- Remove the 2 A/C condenser-to-radiator bolts and position the A/C condenser aside. To install, tighten to 10 Nm (89 lb-in).
- Disconnect the lower radiator hose from the radiator.
- Disconnect the degas bottle return hose from the radiator.
- Disconnect the engine coolant vent hose from the radiator.
- Disconnect the upper radiator hose from the radiator.
- Remove the radiator.
- To install, reverse the removal procedure.
- Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-232208-S29468430532006051600000) .
- Fill and bleed the motor electronics cooling system. For additional information, refer to «TRANSAXLE-TRANSMISSION COOLING - HYBRID»(ref-232264) .
Scheme 46
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING AND LIFTING»(ref-232183) .
- Drain the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-232208-S29468430532006051600000) .
- Drain the motor electronics cooling system. For additional information, refer to «TRANSAXLE-TRANSMISSION COOLING - HYBRID»(ref-232264) .
- Disconnect the motor electronics coolant vent hose.
- Disconnect the 2 engine coolant vent hoses.
- Remove the degas bottle bolt and nut. To install, tighten the nut to 6 Nm (53 lb-in) and the bolt to 8 Nm (71 lb-in).
- Lift the degas bottle up and disconnect the engine coolant and motor electronics coolant return hoses. Remove the degas bottle.
- To install, reverse the removal procedure.
- Fill and bleed the cooling system. For additional information, refer to «COOLING SYSTEM DRAINING, FILLING AND BLEEDING»(ref-232208-S29468430532006051600000) .
- Fill and bleed the motor electronics cooling system. For additional information, refer to «TRANSAXLE-TRANSMISSION COOLING - HYBRID»(ref-232264) .