Temp gauge

[Earley-Bird]

installed new speedometer and I am having temperature gauge problems. It will read cold and then almost high. This is on a 1983 cj7. I would like to keep it original, do not really want to add a mech gauge. I have good grounds etc.

 

[Saddle Tramp]

How about the connector link between the temp gauge and the fuel gauge? Is it there? It is a wire that connects the two gauges. Also have you checked the insulators? They are pads behind the gauges, maybe something is shorting out.

 

[SteelHeadz]

X2, also check the resistor bar across the fuel and temp gauge. Sometimes when an insulator is not doing its job, the resistance will almost go up to a battery voltage and peg up the needle on the temp gauge.