low or leaking power steerinng pump fluid or hoses, loose belt on power steering belt or power steering pump going bad
That means that you need power steering fluid!!
The reservoir on my 2000 Cougar is behind the front passenger strut tower, it should be the same on your 2001, they are the same car under the hood.
Right under the hood back left corner behind the shocks(aka black circle looking thing)
Into the power steering reservoir.
According to the 2002 Mercury Cougar Owner Guide : In the passenger compartment fuse panel : # 21 is a 40 amp fuse for the power moonroof , power windows
how do i change out a power steering switch on a 2001 mercury sable with a 3.0 engine?
Check the fuses and the relay that controls the door locks. A power loss is the most likely cause of the problem.
On a 2001 Mercury Cougar : Fuse ( # 34 ) is a ( 7.5 amp brown color fuse for the power mirrors , clock , and interior lamps )
It is part of the power steering pump assembly.
Cold makes fluids thick, and a weak pump or improper fluid type can cause the pressure to go down so the steering feels sluggish (or pulses).
Low power steering fluid or defective power steering pump.