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instrument cluster problems


Crazy_Bronco_2

Well-Known Member
Joined
Aug 12, 2007
Messages
127
Age
34
City
Edmonton, Alberta, Canada
Vehicle Year
1986
Transmission
Automatic
k, so i just tried to put a instrument cluster into my 86 bII, i found a cluster with a tach in it and wanted it. got home and started to hook it up. got it all done and started the truck, tach don;t work. and when ever i turn on the lights the fuel gauge and temp gauge go to maximum.

does anyone know what wires i need for the tach to work, or where to splice into???
and why the gauges get screwed up when ever i turn on the lights?

thanks
 

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