Hey everyone just wondering why the Instrument Cluster when i turn on the lights in the dark the Instrument Cluster doesnt turn on and all the instruments dont read anything.....but the catch is after driving it exactly 45 minutes with the heat on the intstruments light up and everything works the Instrument Clusters, transmission and the whole dash lights up. i was just wondering if my information that i was told that it can be the whole cluster of instruments, the motherboard, or on the back of the Instrument Cluster tighten the screws....but i did tighten the screws so thats out of the way. if anyone has the same problem... i rele need advice or something...

p.s. also when i mess with the dimmer of the Instrument Cluster about 1/4 away to the dimmer being off the speedo shows a mpr reading but is around 8mpr off and 600 rpm.........weir....if anyone has a clue whats wrong that would be helpful....anyone???

Justin

red wire was unplugged off the cluster board and unplugged the main light wire harness and replugged it back in and tightened all the screws in back of the board....then lights!!!!!!!!!!!!!!!!!!! yeah it has been almost a year with no lights in the dark!!!!!!!! now i see the cluster!!!!! yeah!!!

You have an itermittant bad ground to the dash that is 'healing' itself when warm.

When the lights are off... the dash is seeking a ground circuit through the panel bulbs that are off the cluster and are properly grounded. When you turn the lights on, that circuit goes from nearly zero volts (ground) to battery voltage, making all your gauges inoperative. Start with the integrity of small connector below the speedo itself. That's where the cluster gets its ground.

thanks so much for the info....it actually worked....and my friend and i were like going crazy with the instrument cluster not working...but i removed the cluster and tightened each screw and out of no where it worked... thanks again
Justin