It will be a two wire sensor very near to where the upper radiator hose attaches to the engine.It will be a two wire sensor very near to where the upper radiator hose attaches to the engine.
Follow the upper radiator hose from the radiator to the engine and there is the thermostat housing. Make sure when you reinstall it the spring goes toward the engine. fallow the upper radiator hose to the engine and that should lead right into the thermostat housing is pretty hard to get at i had to bring mine to a local mechanic Just follow the upper radiator to the thermostat housing. Very easy to get at!! No need to take it to a garage!
It is a two wire sensor, very near where the upper radiator hose attaches to the engine.
Check the water pump and the radiator. If the impeller on the water pump has worn it may not be able to pump water. The problem could also be a partially blocked radiator.
Check the water pump. ---- Also check the radiator it sounds like it's plugged and there is now flow of coolant.--- ( circulation ) Check for a heater flow valve in the heater hose they can rust shut easily it is a valve in the heater hose that opens when you turn on the heat and shuts when its not in use, if not then probably the core is plugged a radiator flush might help.
Two wire sensor very near where the upper radiator hose hooks to the engine.
YOU PROBABLY HAVE A BAD OR CLOGGED HEATER CORE IN THE VEHICLE. DEPOSITS AND SEDIMENTS CAN FIND THERE WAY INTO THE HEATER CORE (NORMALLY LOCATED INSIDE THE DASH ASSEMBLY). NORMALLY A FLUSH OF THE CORE WILL HELP YOU OUT, IF NOT, A NEW CORE WILL BE NEEDED. The core was really clogged, but under pressure it blew out, flushed the engine. Lower hose to the heater core coming from the engine is very hot, while lower radiator hose is almost even cold, what do you think?
Try squeezing the upper radiator hose VERY HARD and VERY FAST with BOTH hands. Repeatedly. This will often force coolant into the engine and result in forcing air out.
On top of the radiator. If there isn't an 'obvious' cap, then there really isn't a conventional type cap. Topping off the cooling system is done through the coolant resevoir. When I emptied the system on my daughter's 2002, I pulled the lower radiator hose and then refilled the radiator through a funnel into the very small upper radiator hose, and then topped off the resevoir. That seemed to have covered it as I have not had to add any more since then.
I dont know specifically but follow the upper radiator hose to engine block, it will be very close to this point.
It is very simple to change the thermostat in a 2004 E 150 Van. The thermostat can be found by following the upper radiator hose. After the thermostat is found, disconnect the radiator hose and drain it. Then, you will remove the two bolts that are holding the thermostat housing place. Remove the old thermostat and replace it with a new one.
The engine computer uses the engine coolant temperature sensor to decide when to run the electric radiator fan. It is located very near where the upper radiator hose attaches to the engine.