3.2L & 3.5L Engines
Disconnect the negative battery cable.
Drain engine coolant from the radiator and engine.
Disconnect radiator hose from the inlet pipe.
Remove the thermostat housing, then remove the thermostat (2).

To install:

Install the thermostat into the outlet pipe (4) making sure that the air hole is in the up position.
Install thermostat housing and tighten the bolts to 18 ft. lbs. (25 Nm).
Attach the radiator hose to the inlet pipe.
Refill the engine with the proper type and amount of coolant.
Connect the negative battery cable.
Start engine and check for coolant leakage.

Answered by Jacobandnickolas (expert)
57,318 answers provided

Thank you for your fast answer , however i already know all the steps that needs to be taken to change a thermostat , the thing that i was asking is where is the thermostat located on an Izusu Rodeo 2000 V6 L3.2 and do i need to take my manifold apart ?

Response from jackjack1
1 question asked

If you follow the lower radiator hose, you would come to the housing.

Answered by KHLow2008 (expert)
39,832 answers provided