Ignition issues with my 2006 380

[Ronald Gerome]

I am currently having ignition issues with my 2006 38 sundancer. Once the boat is running the ignition will reboot itself. Meaning you hear the beeping sound when you put the ignition button at the helm in the on position prior to starting. All of the gauges on the port and Stbd engine go to the off position and then back to the position they were at prior to resetting. The port engine seems to cut off just for a brief second and then goes back on. The engines never quit. My mechanic is trying to separate the issue from the boat itself or mercruiser issue. We have yanked and pulled on all connections. Nothing is loose. We checked out the pin harness at the top of the port engine. Some times the port gauges will go completely dead and register off on the smart craft yet the engine stays on and running when underway or at the dock.

 

[CaptRonn]

Check ALL of your battery connections. Clean them very well. Load check the batteries.

These engines are very sensitive to voltage. If you have crud between the battery post and the cable terminal it will create similar issues.

 

[scoflaw]

My gauges power from the ign. switch on the purple wire. Check your wiring diagram

 

[Ronald Gerome]

Thank you so much for your response. It seems like a voltage issue to me. My mechanic is stumped and he has been at this for 25 yrs. My STBD batteries can use and upgrade. I did replace both port batteries this season. I will give it a try.