Rear Tailight Problem - TCCoA Forums
 
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post #1 of 13 (permalink) Old 09-14-2002, 12:43 AM Thread Starter
 
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Angry Rear Tailight Problem

On our 94 tbird, the rear taillight, rear license light, and half of the rear center brake light on the RIGHT side of the car are out. I dont think its the bulbs cuz they all went out at the same time. I did see 2 wire behind the rear tail lights that were unhooked do i hooked em in. Not sure if that has something to do with it since they worked after that for a while. I checked the rear lps fuse and its fine and ive ran out of ideas. Anybody have a clue? THanks
Adam
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post #2 of 13 (permalink) Old 09-14-2002, 08:34 AM
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check for a possible ground... check the wires to see if there are any wires without the sleeving and if there is that might be touching the metal on the car causing a ground... good idea---> rewire the whole car
post #3 of 13 (permalink) Old 09-14-2002, 12:05 PM
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the circuit inside the panel is kaput. look in the exterior tech articles.




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post #4 of 13 (permalink) Old 09-14-2002, 04:21 PM Thread Starter
 
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I removed the license plate light and the top brake light and they were melted and not working. I replaced em and they work fine. Now my only problem is the rear led light. Its a pain in the *** to replace andd has anyone had it done here or did it themselves? Thanks
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post #5 of 13 (permalink) Old 09-14-2002, 04:29 PM
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mine still work, but I know that is going to be much longer. So I am working on getting LEDs equivilent to the stock ones, and going to produce a replacement board. However, that won't be till next March/April.




Matt "Looks Like Egon" Davis
96 Alpine Green V8
98 Audi A8 4.2Q in Racing Green Totalled
02 Audi A8L 4.2Q in Black

I buy my OEM Ford parts at 10% over dealer cost from Steve in White Bear Lake, MN.
You drive "like a man possessed"... by a woman!
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post #6 of 13 (permalink) Old 09-15-2002, 01:43 AM
 
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Red face

Whats taking you so long. Gosh! Hehe
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post #7 of 13 (permalink) Old 09-15-2002, 01:47 AM
 
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Cool

You need to design a tail light system similar to the caddy CTS. All brake lights are led. They are nice in bright and takes no time to light up like ordinary bulbs. Only bad thing about led is price.
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post #8 of 13 (permalink) Old 09-15-2002, 02:05 PM
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Quote:
Originally posted by Warrior455
You need to design a tail light system similar to the caddy CTS. All brake lights are led. They are nice in bright and takes no time to light up like ordinary bulbs. Only bad thing about led is price.
When you take into consideration the lifespan of LED versus incandescant you save money in the long run.

The reflector panels going out is *not* the LED's or even the resistors, it's the traces rotting.

Mine *still* work even though the car is almost 9 years old.

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post #9 of 13 (permalink) Old 09-15-2002, 02:29 PM Thread Starter
 
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But can u replace the traces yourself or no? If not how much you think a shop or dealer will charge? THanks
Adam
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post #10 of 13 (permalink) Old 09-15-2002, 02:34 PM
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Not likely unless you can work in a very limited space.

http://www.tccoa.com/articles/exterior/led.html

R.I.P. Joel Bender 07/30/79 - 03/26/06
R.I.P. Johnny Langton 1975-2011

1997 Thunderbird LX 4.6 AED 349.27RWHP/391.29RWTQ Engine Build Exterior shots
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post #11 of 13 (permalink) Old 09-15-2002, 09:41 PM
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I don't think that you will find a Shop who would do repair work on the traces.
It would also be very labor intensive.It would cost you more to do that than it would to buy a working unit from a junkyard. I have taken apart both of mine, and the circuit board have circuits that are about 1/64" wide. Both of mine had corrosion damage, that had gotten into the circuit board on one end, and interupted the ground path somewhere. There were no visible breaks on the circuit board. I was able to get all 20 LED's to light, by jumping power and ground around to them.

I ended up replacing the LED/Reflector unit on each of mine, with working units from cosmetically damaged ones from a junkyard.

If you need help in doing yours, let me know. I have lots of info and pictures.


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post #12 of 13 (permalink) Old 09-16-2002, 01:04 AM
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Would it be possible to bulletproof the LED board by applying silicone sealant right onto it before installing it into the taillight? Just wondering...

Jim

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post #13 of 13 (permalink) Old 09-16-2002, 06:30 AM
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The circuit board has plenty of sealant on both top and bottom surfaces, but the thin edge does not. I would imagine that you could apply some sealant to that surface, but not sure how much help it would be, unless you are applying it to a brand new board.

Also, I should re-emphasize that my experience with my two LED/reflector units does not necessarily reflect everyone elses. I found evidence of corrosion on both circuit boards of my T-Bird. That does not automatically mean that all the lighting problems with those units are caused by corrosion. LED'S do not usually burn out, but that doesn't mean you don't have some other problem as to why they are not all lit, besides corrosion.

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