telsonman

so i thought i found the short in my speedo cluster on my 87 GTthat was keeping the illumination from working. i found the dimmer switch heating up like crazy and blowing fuses. well, i just replaced it, the new one doesn't blow fuses, however, the instrument illumination still doesnt work. i'm guessing that i just need a new speedo cluster, or a bulb is blown. any ideas or help???

thanks,
jeff

mattdel

the speedo cluster has about 20 bulbs, pretty impossible for them all to not work. the back of the cluster has a printed circuit board kinda thing, but thin and flexible. probably burnt a circuit in the leads to that.

mattdel

lemme ask ya, do the a/c controls light up? if not, there is a loose wire behind the radio on our foxes that for some reason, will turn the dash lights on and off when shorted.

wine_maker

could be the headlight switch too >>> test meter <<<< a must on electric sh*t

^^^^^^^^^^^^^^^^^^^^^^^^^
controls dem to brightfor dash lights

telsonman

no, the A/C lights DO NOT light up. what do i do now??? i have an aftermarket head unit too.

mattdel

check behind the radio for loose wires. i guarantee that is your problem. any wires not connected to anything, make sure they are taped off good.

telsonman

ok, i'll get on that tomorrow and let you know what i find.