Check to make sure you got the correct amount of freaon in the system if you do it may be the cycling switch of a bad compressor
SOURCE: ac blowing hot air on 2005 lincoln ls. just sarted today
Needs to be recharged and you more than likely have a leak somewhere
SOURCE: I HAVE A 2004 LINCOLN LS V8 NO AC BLOWS HOT AIR
I recently had the same problem with my ls. I had to remove the drivers side front tire and behind the tire arm there is the low connector valve that is attached to the compressor- take off the tiny cap and connect the can of refrigerant. Kragen has cans with the valve attached- just follow directions- My air works perfectly now- and it cost under $25 to repair it!
SOURCE: 2002 Lincoln LS V6. AC blowing hot air but
its probably the compressor cutoff switch cutting your compressor off at the wrong time and causing your ac to blow hot. that switch is under your hood right on top of the engine easy to get to. I hope that helps you out!
SOURCE: A/C blowing hot air in 2005 Lincoln LS
It could be the dccv or the evap. discharge sensor,driver's temp sensor or pass temp sensor. Without hooking up a tester to read pids there is no way to tell. I would recommend going to someone that has the ids tester to read pids. good luck.
SOURCE: my 2004 lincoln ls air conditioner is blowing hot
Your issues can not be answered easily or definitively, as the LS is very complex and all electronic.
I would need the stored codes,that set the check light (MIL Light)
You can cycle the right dash display to ACFilter and Reset,with the top row of buttons,in center of dash. There is no sensor on the Cabin Filter. All the dash displays, are just reminders,you can set any way you want, % wise.
Possible issues--Fuses
-- Coolant control valve
--DATC module
You will need a really good Technician,not a general mechanic, to diagnose your problem
You need to put a professional scanner on it, to start any diagnostic work
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