you would have to do it manually by either loosening or tightening the stop screw on the throtle plate, it will take several times until it compensates
If you have the 99 -02 Cougar replace the TPS (throttle positioning sensor) on the throttle body.
under the head liner you will have to pull it down to get the motor
the fuse box on a 86 cougar is down beside your emergency brake release. It has a cover, comes off easy
go to autozone .com they give free tech help that can be down loaded
If your question refers to the Mercury Cougars produced between 1999 and 2002' then you have several options. Assuming that it is a V6, for a stock replacement, you can either track down another Cougar, or find a V6 Mercury Mystique, or Ford Contour, or provided you are in Europe, a Ford Mondeo of a similar year and engine. If you want a little more muscle in your Cougar, you can track down and attempt a 3.0L conversion using the engine from a 2003-2005 Taurus or Sable, or similar Escapes. If you have the I4 version of the Cougar, I think a motor out of similar Contours and Mystiques will work no problem, but I think that the motors from the Focus are different and need a good bit of modification to fit right in a cougar.
You know what the metal fuel line looks like coming into the carburetor? Follow it down, probably behind the A/C compressor at the front of the engine. It will be a barrel looking type of device, with a piece of rubber hose and hose clamps at both ends.
There are little levers you have to pull and push them forward.... these are located on right and left side from trunk access.
drivers side under dash, little black button allows block to tip down for easy access
try going to the local parts house and getting a manual because you will need it when taking down the fuel tank
check the recalls there is something in there about the throttle positioning cable that was manufactured with a burr on the end of the cable... try that they will replace it for free.
Yes , on a 1999 Mercury Cougar : The fuse box is under the dash to the left of the steering wheel , apparently there is some kind of release that allows the fuse box to swing down exposing the fuses Also , the power distribution box ( which is " live " ) is located in the engine compartment on the drivers side of the engine compartment
Remove the inside door panel of your 1999 Mercury cougar. The entire window mechanism will be visible. Remove the wiring harness from the window motor. Remove the window motor linkage. Remove the window motor retaining bolts. Reverse the process to install your new window motor.