What should I do first when replacing my alternator on Lincoln LS 2001?

Do this:
Hope this helps.

That is almost a silly question

V6 or V8 you can see the alternator
on the bottom front passenger side
of engine.

You know all vehicles have a belt that drives
the alt & other accy's

Not finding means you never looked

3.0L lower front of engine passenger side above splash panel. 3.9L top front of engine under engine cover

2001 Lincoln LS 3.0L SFI DOHC 6cyl the Fuel Filter is located: Beside the left front wheel and tire assembly.mounted on frame.

2001 Lincoln LS 3.9L SFI DOHC 8cyl the Fuel Filter is located: Beside the left front wheel and tire assembly.mounted on frame.

Hope this helps (remember to rate this asnwer).

check the fuse or the wiring.

No 6 coil is the second from the front of the engine at the right bank of engine , facing the engine from the front for Lincoln LS 3.9 / V8

You will have to get the airbag code read to be sure but I have had to replace the clockspring in my steering wheel and also the airbag wiring harness under the passenger seat on my 2002 Lincoln LS, all in less than one year. If you or someone you know can help you remove the seat you can do the wiring harness yourself, it is a simple clip.

Hi...
The fuel Filter on the Lincoln LS Is located Inside of the Left front
Fender..
You will need to remove the Left front tire.
Remove the Plastic guard of the Fender. at your right side you will see
The fuel Filter..

I hope this help on your question.
Thank you for Use FIXYA.

front right side (passenger) of engine compartment

Fuse/Relay
Location
Fuse Amp
Rating
Passenger Compartment
Fuse Panel Description
9 10A Right Front Low Beam
10 5A Left Front Turn, Left Front Repeater, Left
Front Sidemarker, Left Front Park Lamps
11 10A Left Front High Beam
12 — Not Used
13 5A Cluster
14 10A RCM, DATC
15 5A Not Used (Spare)
16 5A E/C Mirror, Heated Seat Controls, RSM
(Rain Sensor Module)
17 5A RCM, Alternator Warning Lamp
18 20A Radio, CIA
19 15A Tilt/Tele Motors
20 10A FEM, DATC, Cluster, Brake Shift Interlock,
REM
21 10A Power Folding Mirrors
22 10A DDM
23 10A Right Front High Beam
24 5A PATS
25 10A Left Front Low Beam
26 10A Wiper Relay, Windshield Washer
27 10A Radio, Cellphone
28 5A Security Horn
29 5A Trailer Tow Ignition Sense, VEMS, FEM
30 5A FEM
31 — Not Used
32 20A Cigar Lighter
33 10A Switch Backlighting
34 10A Not Used (Spare)
35 5A Stop Lamp Signal