SOURCE: Ford F150 AC Problem
there is a vent opening linkage for the top vents if you had removed panel for sterio install this linkage might have come loose or the wiren to electric relay to open top vents came loose
also vent doors on front of a/c vents are turned to the closed position
also quite possible the passenger blower motor compartment door in side the blower mode has something blocking entrance
also your truck might be equiped with a blower motor filter i read that these need to be changed out during normal filter replacements the filters for ford i didnt know they started using filters for a/c on reading this since 2000
SOURCE: Overheating problem
With the sensor unplugged and the fan works,, replace the new sensor,,,,, it is probably defective. I have seeh this before.
SOURCE: sensor locations
air intake look at snorkel it could be part of mass air flow check intake for eng coolant
SOURCE: where is the in cab air filter located in my 2003
Wow, that's a great question, as I researched it, I found listings of cabin air filters at some parts suppliers, but could find no reference to location or info in the original owners manual. So, what I found is that it was a dealer add on option, not standard equipment or a factory available item. If you have the dealer add on, it should be located under the dash glove box, but you most likely don't have it. The kit # if you want to add it is the following Ford part #, but it may not be available, and check w/ Ford to make sure it will fit your year, model, as I got this # off the internet, and haven't checked it at the Ford website:F65Z-18D477-AA. Good luck!
Testimonial: "Thanks for your help. The auto parts store mentioned that there were 2 filters but did not mention that they were an option on my truck. Thanks again"
SOURCE: where is the coolant temperature sensor located on
The Coolant Temperature Sensor is located
under hood, center, front engine area, rear of water
outlet, mounted in intake manifold.
Hope helped (remember rated this help) Good luck.
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