Q: How to Install a Thermostat on a 3.5L Engine on 2010 Dodge Challenger?
A: For a 3.5L engine, first put the gasket on the engine thermostat and inside the housing. Secure the thermostat housing, gasket and mounting bolts onto the block so that the bolts are tightened to 12 Nm (105 in. lbs.). Following that, install the radiator hose and the air box assembly. Full the cooling system and then lift the car on a hoist. Set in the belly pan and then secure the negative battery cable into place.