Commander 4WD V8-4.7L VIN N (2006)
Thermostat: Service and Repair
THERMOSTAT
REMOVAL
3.7L/4.7L
WARNING: Do not loosen radiator draincock with system hot and pressurized. Serious burns from coolant can occur.
Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse. If thermostat is being replaced, be sure that
replacement is specified thermostat for vehicle model and engine type.
1. Disconnect negative battery cable at battery.
2. Drain cooling system.
3. Raise vehicle on hoist.
4. Remove splash shield.
5. Remove lower radiator hose clamp and lower radiator hose at thermostat housing.
6. Remove thermostat housing mounting bolts, thermostat housing and thermostat.
INSTALLATION
1. Clean mating areas of timing chain cover and thermostat housing.
2. Install thermostat (spring side down) into recessed machined groove on timing chain cover.
3. Position thermostat housing on timing chain cover.
4. Install two housing-to-timing chain cover bolts. Tighten bolts to 13 Nm (115 inch lbs.) torque.
