ON THE TOP OF THE ENGINE WHERE THE UPPER RADIATOR HOUSE CONNECTS...
Your thermostat is stuck open.
According to the 1999 Mercury Cougar Owner Guide the six disc CD changer ( if equipped ) is located in the luggage compartment
follow top radiator hose. 3 1/4 blots remove clamp on hose
how do you remove the headliner from a 1999 mercury cougar
The thermostat for a 1999 Mercury Mystique is inside of the top water inlet. Remove the top radiator hose from the engine, and then inlet can be removed to get to the thermostat.
Actually , it has fuel injection , so there is no carburetor
No.
Yes , the 1999 Mercury Cougar is FRONT wheel drive
Relay R1 is located in the power distribution box ( which is " live " ) The power distribution box is located in the engine compartment on the drivers side in a 1999 Mercury Cougar
Normall follow the top radiator hose to housing "T" should be in housing
On a 1999 Mercury Cougar : The fuel pump relay is in the Power Distribution Box ( which is " live " ) located in the engine compartment ( it is relay R1 and is one of the black relays )
It's a bit buried. Note that the 1999 Mercury Cougar has no user-servicable barts.