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post #1 of 3 (permalink) Old 07-23-09, 05:13 PM Thread Starter
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LED Speedometer Display Problems on a 1988 Thunderbird

I recently bought a 1988 Thunderbird, V6, 3.8 with a digital (LED) speedometer display. It was dim when I bought it and the dimmer switch for the dash lights only made it dimmer. It recently went so dark that I can only tell how fast I am going if the sun is behind me or I have a flashlight. It is still working, I just can't see it.

Are there lamps behind this display or is there a fuse that controls the lights. There are several fuses in this car which the manual simply states as dash display.

I wanted to ask your advice before I pull off the dashboard and find that it was not necessary.

I have seen a few postings on other sights, one saying to pull the fuses out, one by one, (with the ACC switch on, but not the motor (that did not make sense to me either) and when the LED went out completely, to replace that fuse with a higher amp rated fuse). This sounds like it would just blow the thing completely.

You guys have any advice or suggestions?

I appreciate your help.



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post #2 of 3 (permalink) Old 07-27-09, 07:59 PM
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Re: LED Speedometer Display Problems on a 1988 Thunderbird

there are several bulbs that are in the instrument cluster.it has to be removed to access them.it aint hard at all.i would replace all the bulbs at once.you dont want to have to replace other ones a couple months down the line.
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post #3 of 3 (permalink) Old 08-08-09, 06:35 PM
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Re: LED Speedometer Display Problems on a 1988 Thunderbird


I am a new guy here but the poster above me is correct. There are small bulbs behind the cluster, they actually connect via "snap-in" mode, and powered by the leads which are directly attached to the cluster.

Half of mine has gone off, and since my 95 T-Bird is a second car I keep "meaning to get to it." But the biggest PITA will be taking off the trim, I have done it once before, takes time thats all.

Should have been smart and replaced them all bulbs when I did that... not I keep postponing it.
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