Check and see if someone installed an engine core heater. This could have happened if the car was ever in an area where the winters get very cold.
That would be located under the car just in front of the second catalytic converter.
where is the obd connection point on a 1992 thunderbird OBD1 is usually under hood by battery
On a 1997 Ford Thunderbird : The fuel tank is under the vehicle , ahead of the rear wheels
The flasher for a 195 Thunderbird is under the drivers side of the dash. It is located at the fuse panel.
it is under the hood near the battery.
your Computer box on the 97 thunderbird is located under the passanger side glove departmenton the right side
On a 1992 Ford Thunderbird : The gas tank is under the vehicle , just in front of the rear wheels
under the hood, closer to the windshield, you have to slide over a black cover to the left to reveal the battery terminals
Get under the car
on passenger side under the plugs and exhaust manifold
It will be under the clutch, as it meets the firewall.
under passenger side kick panel