INSTALLATION
3.7L/4.7L
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 N·m (115 in. lbs.) torque.
CAUTION: Housing must be tightened evenly and thermostat must be centered into recessed groove in timing chain cover. If not, it may result in a cracked housing, damaged timing chain cover threads or coolant leaks.
5. Install lower radiator hose on thermostat housing.
6. Install splash shield.
7. Lower vehicle.
8. Fill cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE).
9. Connect negative battery cable to battery.
10. Start and warm the engine. Check for leaks.
5.7L
1. Position the thermostat and housing (2) on the front cover.
2. Install thermostat housing bolts (1). Tighten the bolts (1) to 13 N·m (112 in. lbs.).
3. Install the radiator hose (4) onto the thermostat housing (2).
4. Fill the cooling system (Refer to 7 - COOLING - STANDARD PROCEDURE).
5. Connect negative battery cable.
6. Start and warm the engine. Check for leaks.
3.0L DIESEL
1. Clean all sealing surfaces.
2. Position and install thermostat housing Tighten bolts to 9 N·m (80 lbs.in.).
NOTE: Inspect condition of all clamps and hoses, replace as necessary.
3. Connect coolant hoses and vent hose .
4. Install bracket for fuel line.
5. Close coolant drain.
6. Install engine cover (Refer to 9 - ENGINE - INSTALLATION).
7. Connect negative battery cable.
8. Fill coolant system to proper level with appropriate coolant mixture (Refer to 7 - COOLING/ENGINE/COOLANT - STANDARD PROCEDURE).
WARNING: Use extreme caution when engine is operating. Do not stand in direct line with fan. Do not put your hands near pulleys, belts or fan. Do not wear loose clothes.
9. Start engine and inspect for leaks.