It's simple to install a thermostat in your v8 ford engine. they are typically located right in the front of the engine and have easy access. in this video i. Since tons of people seem to install these backwards, i made a little video to actually show you the correct way.
Old school mechanic trick #2: the shorter end (arrow b) of the thermostat always points toward the radiator hose, and away from the engine. therefore, the deep end (arrow c) of the thermostat always gets installed going towards, or into, the engine. (arrow a) in the photo is the new thermostat gasket on the new thermostat, make sure to always. These instructions and detailed video show a step by step thermostat housing unit replacement on a 2012 ford f 150 xlt, but will be similar for ford f 150 xl. Step 3 remove the upper radiator hose on the thermostat housing. now, you should be able to see the clamp holding the upper radiator hose to the thermostat housing. take a pair of pliers and slip the clamp back so you can remove the upper radiator hose. figure 3. remove the upper hose on the thermostat housing. Step 14: fill the cooling system. fill the cooling system with antifreeze, remove the drain pan, and start your vehicle. let your ford f 150 warm up to operating temperature with the heater on. if the heater is blowing warm air, turn the truck off and check the coolant level. add coolant as needed then close the hood.
Step 3 remove the upper radiator hose on the thermostat housing. now, you should be able to see the clamp holding the upper radiator hose to the thermostat housing. take a pair of pliers and slip the clamp back so you can remove the upper radiator hose. figure 3. remove the upper hose on the thermostat housing. Step 14: fill the cooling system. fill the cooling system with antifreeze, remove the drain pan, and start your vehicle. let your ford f 150 warm up to operating temperature with the heater on. if the heater is blowing warm air, turn the truck off and check the coolant level. add coolant as needed then close the hood. Lay the new o ring seal on top of the housing and reinstall the thermostat housing. the 10mm bolts should be torqued between 20 30 nm (15 22 ft lbs). reinstall the upper radiator hose and fill with coolant: start the engine, warm it up, check for leaks, and you're done. 8) stuff a rag into the engine opening, then remove all traces of corrosion and gasket material from housing and engine. remove the rag. 9) on the 4.0 engines, make sure the sealing ring is positioned correctly on the thermostat. 10) coat the mating surfaces of the housing and engine with an adhesive type of sealer.
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