This is for the V6 Lincoln ls.
From expirience I had to change my fan and convert it to an electric fan seeing how expensive it is to replace the hydraulic pump.
To remove the fan you must remove...
If you stand in front of the car with the hood up (3.9 V8) you should see two white fluid containers across from each other. the one on the left (passenger) side is for the coolant fan, the right...
Coolant level.
There are many other posts on the topic, you need to check the coolant level and start from there. Chances are you may have a coolant leak. No coolant = no heat.
There should be a map of your fuse box in the users manual and/or on the inside of the lid to the fuse box. If you cannot find it after that, a mechanic or the local Lincoln dealer should be able to...