There is a lot of of internet shops where you can find an extensive line of spare parts for cars and buy them at the attractive price. If you have no idea about that you can also ask some professional as for instance mechanic or go to the scrap yard.
You can find this at you local public library...........
Try AUTOBOOKSONLINE.COM If they don't have the wiring diagram separate they may have a shop manual
A Haynes manual available at most auto parts stores or you can check your local library.
how to find a vacume leak on a1999 cougar
its right above the rack n pinon on the driver side
in the truck under the carpet you can see the fuel pump hose or line. if you were to follow that you might find if.
How do i find the instructions for changing out the fan switch assembly in a 2001 Mercury Cougar?
You can find the correct firing order for your 1987 mercury cougar at www.coolcats.com, it is a website dedicated to the cougar and thunderbird.
my tire sizes for my cougar are P215/50R16 or go here so you can find your size http://www.dragtimes.com/Mercury-Cougar-Tires-m31-n237.html
You can find the air conditioner schematic for the 2000 Mercury Cougar online at places like Parts Train. You can also find this schematic in the Chilton's repair manual for the vehicle.
You can find a front door latch assembly diagram, for your 1996, Mercury Cougar from the manufacturer website. Many auto-parts websites will have the diagram.
find a chilton manual, they are cheap