Ac out in my lincoln navigator. How much am I looking at to repair? It's just not getting cold. Trying to find out what the problem could be from the less expensive to the most major problem. It's a hot summer and the ac is a must!

Condenser? What type of condenser? The AC condenser is in front of the radiator. Condensers don't have fuses, they are like a radiator for AC refrigerant gas to cool it, before going to the compressor.

Lincoln Navigator (2003-2006) fuses and relays - Fuse-Box.info

https://fuse-box.info > lincoln > lincoln-navigator-2003...

The Power distribution box is located under the right-hand side of the instrument panel. ... To remove the trim panel for access to the fusebox, pull the panel ...

2003-2006 Lincoln Navigator Fuse Box Diagram

https://knigaproavto.ru > shemy > 585-2003-2006-linc...

Jun. 21, 2018 - Fuse Box Diagram Lincoln Navigator (U228; 2002, 2003, 2004, 2005, 2006)

Condensers and Evaporators, no fuses, it is all to do with plumbing and liquid or gaseous gas.

https://www.ebay.com/b/Condensers-Evaporators-for-2003-for-Lincoln-Navigator/33547/bn_87489186

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The system is not able to build pressure in the high side of the HVAC because it is low on coolant.

possible blower motor

Sounds like a vacuum leak.

http://www.rockauto.com/en/catalog/lincoln,2001,navigator,5.4l+v8,1434768,literature,repair+manual,10335

Ford 150 250 Expedition Lincoln Navigator Repair Manual 1997 2014

Lincoln Navigator 1998 2014 Ford Pick Ups 1997 2012 Ford 250 1997 1999...

Lincoln Navigator Service Repair Manuals on Motor Era

Lincoln Navigator Workshop Owners Manual Free Download

The low pressure port is the only one that your AC charging tool will fit on if you are planning to charge the AC unit with refrigerant. The high side port is much larger and the quick connect tool won't fit it. Look up high toward the firewall on Fords and Lincolns.

needs topping up with gas i shouldnt wonder

the computer that controls the deflector motor are not responding and opening the door for heat, I'm sure you have climate control,check the temp setting sensor to the computer input first

That sounds like the Blend Door Actulator has decided to go loopy. I heard of people turning it to hot and getting cold, Normally when this bit goes it makes a click click noise