Hi looking possible solution or maybe someone has experienced the same problem. Been searching forum and I'm none the wiser lol, what I have done so far is change the thermostat, temp sensor and gauge sensor. The fan will come on when I disconnect the temp sensor, so the fan is working. The gauge would bounce slightly and then shoot into the red - fan never turns on, if I turn the heater on the gauge will slightly fall and the only way to get it to return to below halfway is to tap the side off the dash. The car never overheats so I'm guessing a problem is with the gauge, the car is a Super S and was wondering also is it possible to use a gauge from a non rev counter preface, thanks in advance