Voltage regulator dart rallye cluster?

Unfortunately it could be anything from the sending unit to the gauge. The sending unit needs a good ground. And many of the aftermarket sending units are crap. It could be the wiring to the gauge. It could be the gauge itself...after 40 odd years the breakdown...or it could be the regulator. The regulator reduces the car 12 volt to 5 volts to operate the gauges.

Hey Mike, you wrote a great article. Next time I need to make sure to give props to the author when I share a link!!!:banghead: Thanks for sharing the info on D & M Restorations. I'm going to have them go through my fuel gauge.


I went though my gauge circuit a while back and had is working somewhat. Meaning, when full it would read about three quarters. Now lately, it's back to going to a quarter when full. And with the early Barracuda's you never really know when the tank is full cause it's such a pain to put gas in them!!!!! Guess I just need to keep track of mileage until I get it working correctly again.

Search through the old threads here and you'll find loads of info on troubleshooting the fuel gauge system.