It is a recall. You should take it to a Ford dealer. They will take care of it.
Here is a link, that shows recalls for The Thunderbird.
http://www.dealerrater.com/recalls/Ford/THUNDERBIRD/
Start by checking the grounds. There's a loose connection in there somewhere.
I would also like to know this. Our van's healights and dash lights both flicker. The headlights are not very bright.
where is the obd connection point on a 1992 thunderbird OBD1 is usually under hood by battery
your headlight switch needs to be replaced. My Lincoln had the same problem, it all stems from the auto dimmer feature...replace the headlight switch (mine was 70-100 dollars) and your lights will work fine.
On a 1992 Ford Thunderbird : The gas tank is under the vehicle , just in front of the rear wheels
In 1992 the Ford installed manual transmissions in the Super Coupe ONLY, automatic was an extra cost option. Thunderbird, Thunderbird Sport, and Thunderbird LX, in V-6 or V-8 had automatic transmissions ONLY.
yes most MN12 Ford Thunderbird/Cougar parts as far as body will interchange
I just checked the owners manual and mine has an 18 gallon tank. 1992 Ford Thunderbird 3.8 liter.
On a 1992 Ford Thunderbird : ( both the 3.8 liter V6 engine and the 5.0 liter V8 engine have a timing CHAIN )
AOD
most likely the harness on the side of the radio, drivers side, has chafed through, pull radio and tape over the wires attached to the side of the radio.
Make sure the battery cables are clean and run a good ground from the body to the negative battery cable flickering bright or dull? do they flicker only when motor is running? if they flicker only when the motor is running and are full brightness it is probably voltage regulator.i need more info on problem