1986 Ford Thunderbird. Turn signal does not

inside the rear trunk panel you will find some small nuts on studs for the tailight assembly, remove them and the tailight and you should be able to access the tailight bulbs

You need to check for power to rear light if none start to check wiring in reverse. Usually at turn signal switch or under drivers side carpet.

Flasher should be ok, May need to replace the turn signal. fuse. Need to see if bulbs are 4 way or 2 wat and what flashes ? good luck to ya.

you should be able to remove the taillight lens. open your trunk,you may have to pull back the carpet covering the taillight retainer nuts.There should be 3 or 4 retainer nuts,these will either be a plastic wing nut style,or metal nut. remove all of them and gently pull on the lens,it should come out with very little resistance.the bulb fixtures will generally turn counterclockwise. replace burnt bulbs and replace the lens. hope this helps. Dale

open trunk, remove screws that hold tailight in, twist out bulb holder, take out bad bulb, reinsert buld holer, replace tailight, replace screws, close trunk...YOUR DONE.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

inside your trunk you must pull back carpet exposing bolts holding tailight in. remove those bolts and pull tailight out. you can then remove sockets by turning counter clockwise. replace appropriate bulb

you could have a bad ground. you will need a test light and probe each light till you find one that does not work

it could be bad socket get a 12volt tester or it is in the turn signal switch itself

You have a bulb out somewhere could be front or back, but that is usually why it blinks faster.

If all of the wiring, fuses, bulbs, and switches are good (which is what it seems since everything else works fine including the turn signals on the passenger taillight), sounds like it may just be a bad socket. I have a somewhat similar problem on a 1986 F150.