The air intake for interior, aka 'cabin' heating & cooling, is located in the engine compartment. This air intake has a filter on it.
Look for a 10" long by 1.5" tall cover in the plastic cover / trim / housing, just underneath or engine-side of the passenger wiperblade.
Remove the cover and the filter is located just inside.
It has the intake heater.
The actuator assembly of the IMRC system is attached to the cylinder head/intake manifold, just up of the water pump.
The intake heater is the square block between the air horn and the intake manifold.
How do I test the air intake heater relay on a 7.3 desiel
it could becoming from the intake or one of the o-rings from the heater hoses where it connects to the intake .you need to pressurize the system to pinpoint the leak
Which plenum-intake or. . . .
The intake manifold is made up of 2 parts, not surprisingly the Upper Intake Manifold (UIM) and Lower Intake Manifold (LIM).The UIM is quite easy to access, with only a couple of components to disconnect in order to remove it. This is also where the bulk of the 'common' work takes place - cleaning egr ports, most of the induction system cleaning, and a very critical repair for the Windstar: failed isolator bolts.The "Related Questions" below cover the UIM in great detail - with links to in-depth procedures on removal, cleaning & maintenance.Not a comprehensive response, but enough to get the conversation started on Windstar 3.8 intake manifolds...The "Related Question" below has lots of information and links to detailed procedures on intake manifold repairs.
replace the water heater inlet pipe on the intake manifold on a 3800
yes you can
a heater hose runs from intake to heater core to radiator. the heater core is were the heat comes from inside the car as well as defrost
If you are getting a Lean code then it is probably being caused by the intake plennum gaskets. This is a common problem on the Windstar. The fix is relatively easy.
It is the part the air intake duct attaches to on the left.