Quote:
Originally Posted by CaliDude76
I have an 84 C-10, problem is, majority the gauges dont work. The Oil/Temp/Volt, doesnt work, and the fuel gauge only reads up to a quarter tank when full. Of course, the speedo wobbles and squeeks, that needs to be replaced for sure. Replaced sending units... and nothing... what are the odds that it might me the circuit board behind the dash?. and does that have anything to do with it?. Would kindly take some expertise advise... Thanx!!! 
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Yeah good guess bro, it must be the PCB, maybe it has broken components on it and need to be replaced. fixing PCB needs an electronic specialist. Just bring your PCB on the electronic shop.