[twilson0929]

My 2000 Tiara 3500 , Cummins 6BTA, has had issues with ground as you specify. Gauges would fluctuate or not work at all and occasionally I would have alarm go off that is located behind helm for oil pressure, temp, battery charge etc. My problem has ALWAYS been the ground wires behind the helm. Mostly the ones that are directly connected to the gauges as they are just piggy backed from one to the other and sometimes the spade connectors get loose causing poor grounding. If you are also have issue with a newly installed electronics package, I would suggest looking at the main ground block behind the helm. Mine has also loosened up causing erratic ground issue seen by poor voltage readings at helm gauges and gauges not working or erratic.

Hope this helps.

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That’s helps. The main ground panel behind the helm seems ok. Took most off, cleaned, reattached but no change. The actual ground wires to the back of the gauges come off very easy. Coated with dielectric grease, seems to help some...but hasn’t fixed issue. I will have to pull each one. Not an easy place to hang out in and work on. Thanks for info.