the headlights go up on my gf's 89 ta but they do not go back down. both started doing this at the same time...

i thought it might be the headlight control relay, so i replaced it and they still don't work. i've also replaced the switch in the dash and that did not fix the problem either.

if one headlight needs a 'rebuild' will it cause both not to go up/down?

 

Mine went up but not down because a fuse was blown. Not excatly sure what one it was because I had to replace a bunch.

 

i dont think it would be the cause. As ejm says - check your fuses.

 

all fuses appear to be good... that was the first thing i checked.

 

if your car is like my 86 ta, there are 3 relays in the system. 2 of them controle only one headlight motor and the other relay works both of your headlights. if there is a short in your headlight isolation relay(i think thats what is called) it could cause your lights to do that.

i was not able to find the right relay for it, even from the dealer. i just hooked up a 3 way toggle switch to my lights. now they both go up and down fine. i know it's kinda ghetto, but it beats popping the hood and dong it manually.

 

I just got a 85 TA (Im a camaro guy)

Lights worked fine since I got the car. Now all of a sudden lastnight they wont go up. They come on but wont pop up now. They do go down.

Where are these 3 relays for the system?

 

There are three relays as mentioned. There is a relay on the left hand fender behind the left headlight, another one behind the right hand headlight on the left side of it. The third relay is the isolation relay, it is located behind the right hand headlight.

 

Correct information for 1982-86 Firebirds. However the 1987-92 Firebirds have a completely different haeadlamp motor system with only one relay which controls the motors. That relay is located on the firewall between the power brake booster and wiper motor. It is called the headlamp control module and has "GUIDE" molded on the cover.

Lon

 

His car is an 85 T/A that I was responding to.

 

And the original person posting has a 89. Don't you hate it when a thread has been hijacked? I just think it is important to keep reminding everyone of the differences in the two headlight actuator systems. So often (as in this thread) I'll see someone with a 82-86 relating how they resolved the problem on their car to someone with a 87-92. The two are different and require different solutions.

Lon

 

...speaking of which, i still have not found the problem.