2.
Disconnect the radiator lower hose (A).
Disassembly of the thermostat would have an adverse effect, causing a lowering of cooling efficiency.
Drain the coolant.
(Refer to Cooling System - "Coolant")
Disconnect the radiator lower hose (A).
Disconnect the heater hoses (A).
Remove the intake manifold.
(Refer to Intake And Exhaust System - "Intake Manifold")
Disconnect the water hose and then remove the heater pipe (A).
Tightening torque :
19.6 ~ 26.5 N.m (2.0 ~ 2.7 kgf.m, 14.5 ~ 19.5 lb-ft)
Remove the water temperature control assembly (A).
Tightening torque
Thermostat housing bolt & nut :
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)
Water inlet fitting bolt & nut :
19.6 ~ 26.5 N.m (2.0 ~ 2.7 kgf.m, 14.5 ~ 19.5 lb-ft)
Install in the reverse order of removal.
Fill with engine coolant.
Start the engine and check for leaks.
Recheck the engine coolant level.
