u dont
According to my Chilton's Auto Repair Manual : For a 1991 Mercury Cougar : ( 19.0 U.S. gallons )
its in the fuel tank repair about 700.00
Take it to theglass repair guy
According to my Chilton's Auto Repair Manual : ( A 1991 Mercury Cougar has a 19.0 U.S. gallon gas tank )
According to my Chilton's Auto Repair Manual : A ( 1991 ) Mercury Cougar has a ( 19.0 US. gallon gas tank )
According to my Chilton"s Auto Repair Manual : For a 1991 Mercury Cougar ( 19.0 US. gallons )
The repair section on autozone.com explains how to change the light switch.
Check for the recall on that. I believe it is recalls.gov
The 2001 Mercury Cougar does not contain Freon. Freon was banned in 1996. I suggest you take this vehicle to someone who has the knowledge, tools, and skill, to repair the A/C system.
According to my Chilton's Auto Repair Manual : For the 3.8 liter V6 engine in a 1991 Mercury Cougar : With engine oil filter change : ( 5.0 US. quarts )
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.
The Haynes Repair Manuals would have a diagram of the serpentine belt on a 94 Mercury Cougar XR7. You can find the manual at your local library, book store, or most auto parts stores.