How do I deactivate the remote? - 2004 Lincoln LS

SOURCE: 2004 Lincoln LS A/C Valve

In order to charge, you must locate the low pressure valve to install the refrigerant. The low pressure valve is between the compressor and the evaporator. Do not charge on the High Pressure side, The high pressure valve is between the compressor and the condenser. To locate the low pressure valve, follow the line that comes from the compressor and routes toward the firewall. The valve will be somewhere on that line. Do not overcharge. The amount of pressure that is needed on the low pressure side will depend on the ambient outside temperature.

SOURCE: My 2004 ls lincoln 2004 ls is rough sometimes only

The air filter should be changed frequently. The Lincolns have longer warranties than most cars.
You might want to go to a dealer and see if you still have warranty left.
Some parts will cause idle problems and not set off the Codes. You may need the idle adjusted. Your car may need the EGR passages cleaned under the airhorn. Sometimes on all cars the O2 sensors operate within approved range, but when 2 of them are combined they work against each other.

A dealer can run a diagnostic for spark and fuel pressure to insure peak performance.

Testimonial: "hey , thank you! The car sstill in waranty until December. I already made an appointment. We'll see what happen."

SOURCE: 2004 lincoln ls has p0420 code c ev o oh e

If you have a 2004 lincoln ls,the PO420 is-- Catalyst System Efficiency Below Threshold. ( Bank 1) The list of possible causes are long. I have the same vehicle, and the Emissions Manual,which is several hundred dollars. Don't let anyone tell you it is a bad Converter. It may be, but it is only six years old. I would check for codes. The ignition coils (Coil-On-Plug) go bad on all Fords and a misfire, resulting overheating of exhaust system etc,will set all kinds of codes,and they may not be related, to the real issues. Lincoln is where one of everything goes,when it comes to the latest technology. Check that the O2 Sensors are screwed in tight. Later on you may need to have them checked out,if no ignition issues or malfunctioning coolant temp sensor issues. Use only 5-20 Oil. I use Mobil 1 synthetic. Hopefully your not using any,and ruining the converter. Make sure you have the system full of coolant,including the Degas container,the one where antifreeze mix goes. Remember GO5 Yellow antifreeze on ford products. Also bleed the hose next to the brake booster to let out air,in the coolant system. You can check for above normal fuel pressure. I would not go to a Dealer and spend more than necessary. Find a good shop that knows these vehicles. You can't fix every problem on all makes that come thru your doors today. Hope I give you a start on things to have checked. I would stand in the service bay by the car and have the tech prove what is wrong before I would authorize any part replacement.

SOURCE: how can i find the keypad code on my 2004 lincoln

In the grey folder with your owners manual,is a white card with the factory code,for the keyless entry keypad. It also, tells you, how to put in your own code

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