m923a1 crazy gauges

i just got my m923a1 the temp gauge reads 235 but the motor is 175 or so i changed the sending unit then i changed the gauge still slowly rises to 235 my low air light stays on all the time but i have plenty of air pressure ( i raised it from 105 to 118-119 psi) anybody have any ideas thanks ted

Gremlins?

ya good luck on that one. try making sure your grounds are in tact and clean.

on the low air light are you getting the buzzer too? if so I'd say the sensor is bad.

no buzzer ... as a matter of fact the only buzzer that works is the parking brake buzzer i bet they had a problem and just disconnected it i have to dig further whats weird on the temp gauge is if i disconnect the wire at the sensor the gauge goes down to the bottom if i ground the wire it pins the gauge ...so its doing what it should...gremlins...i hate those guys