What is it doing or not doing? In my 91 thunderbird my drivers side rear blinker has a short, if I wiggle the wire then the light works for a couple of weeks, probly a bad ground. Check the flasher in the fuse box, It is usally round. If that checks out you may to check the turn signal switch in the steering colmun.
My 1991 Mustang 5.0 LX came from the factory with ( 5W-30 ) I ASSUME your Ford Thunderbird would be the same
does a 1991 thunderbird torque converter have a drain plug
If it is a 5.0 from a 1991-93 Thunderbird/Cougar, then yes
5x7
No
have the same problem with my 94 Thunderbird super-coup did some research and on my vehicle there are two flashers one for the turn signals and one for the hazards i would assume that the flasher for the hazards has gone out not sure if your vehicle has the same type of setup
it is located on the steering column
Well, Pontiac doesn't make the Thunderbird, Ford does. But since you DO specify Pontiac, I wonder if you just typed the wrong model. If you can square us away with the correct make and model, we'll be able to help you. FriPilot
Yes
That is a good thing. You want the turn signals to work.
Thelma and Louise
My 1991 5.0/H.O. was rated at @ 210 hp.