My 2000 lincoln ls cooling fan will not turn on. Where is the fuse and relay located for this? I located the blower fan relay and fuse, but assuming the radiator cooling fan is on a separte circuit.

https://www.fixya.com/cars/t24524965-engine_fan_relay_located_2000_lincoln_ls

This information may help you.

Fuse box diagram.
https://www.autogenius.info/lincoln-ls-2000-2006-fuse-box-diagram/
Some good info on fan operation of you car on below link.
https://www.justanswer.com/ford-lincoln/7k3bc-lincoln-ls-05-lincoln-ls-cooling-fans.html

Just a thought: If you have two electric fans one comes on when you turn the A/C on the other does not come on till the car reaches normal operating engine coolant water temperature.

There is no relay on the cooling fan circuit.
If the cooling fan is not operating, check fuse #105 (20 AMP), in the underhood junction box, right front of engine compartment.
If fuse is good then test to make sure fan is getting power.
If no power then could be bad cylinder head temperature sensor, hydraulic fan solenoid, a/c cycle switch or the PCM.
If it has power but doesn't come on then fan motor is bad.

If you are referring to the cooling fan in the front of the radiator, it is a hydraulic system, not electric in the LS from 2000-2002 and thus has no fuse. If you are referring to the blower motor, I can give you that fuse location.

I have a 2004 lincoln ls 3.9 V8 i'm having problem with my new fan it want come on i cant find the coolant fan switch

You have up to three relays that control the fans. And fuses that go with them. They are located in the fuse/ relay block under the hood. Check these

they have a fuse/relay,also a fan motor,also if the thermostat aint working properly this will interfear with the fans too check the fuse first easiest way to go

one should be located near the thermostat housing the other is located in the side of the block.

Should be under the hood in the fuse/relay box on the driver's side, just behind the battery. The lid of the box has the diagram of the fuses/relays.

I have the original owners manual, and it says that there is a fuse (No 16) and a relay (No 10) for the blower motor. I've same troubleshooting right now. If you wants send me a email to [email protected] to send you a scan imagen of the fuses diagrams.