My heat gauge is not working. Sometimes it reads hot, sometimes cold, and sometimes in the middle. If I unhook the wire on the sencer, nothing changes. I have had the dash out and I replaced the voltage divider and even the gauge and nothing changes. Sometimes when it is reading hot, if I bang on top of the dash, it will seem to read normal for a while. I checked all the wires and can find no problem. Does the circuit board have a habbit of breaking? I can'tsee any problem there either. What do I check next please?
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