I have a 1997 28 ft express cruiser. I seem to have an ongoing 12v issue that I am not sure how to track down. Here is the basic setup:
1 Group 31 AGM Starting battery
1 Group 31 AGM House Battery.
1 2-bank battery switch.
I've already replaced both 12v fuse buses under the dash, including new fuses and crimped new ring connectors, all 12v is currently working in the boat.
The problem is when I turn the ignition to Aux, I only get about 10-11 volts. This will go to 12V when I start the engine. I will consitantly see the volt meter take a dive when I hit the drive trim in/out and tabs in/out. I also notice a correlation between when the volt meter drops and the temp guage rising. Recently, I've been running with the radar off and GPS only. for the last two weeks, I've noticed the vot meter fairly low while running. I had the admiral go below and shut the fridge off. I could immediately tell when she shut the fridge off because the volt meter jumped from 10 to 12V and the temp guage dropped simultaneously.
So, I believe I have a short somewhere. I suspect it is a result of all of the corrosion I see on the negative wires on anything I look at.
I'm curious how to continue addressing this problem.
My ignition key itself is showing some signs of corrosion, and I've been considering replacing the ignition itself, though I doubt that is the weak link in the system.
Any thoughts??
1 Group 31 AGM Starting battery
1 Group 31 AGM House Battery.
1 2-bank battery switch.
I've already replaced both 12v fuse buses under the dash, including new fuses and crimped new ring connectors, all 12v is currently working in the boat.
The problem is when I turn the ignition to Aux, I only get about 10-11 volts. This will go to 12V when I start the engine. I will consitantly see the volt meter take a dive when I hit the drive trim in/out and tabs in/out. I also notice a correlation between when the volt meter drops and the temp guage rising. Recently, I've been running with the radar off and GPS only. for the last two weeks, I've noticed the vot meter fairly low while running. I had the admiral go below and shut the fridge off. I could immediately tell when she shut the fridge off because the volt meter jumped from 10 to 12V and the temp guage dropped simultaneously.
So, I believe I have a short somewhere. I suspect it is a result of all of the corrosion I see on the negative wires on anything I look at.
I'm curious how to continue addressing this problem.
My ignition key itself is showing some signs of corrosion, and I've been considering replacing the ignition itself, though I doubt that is the weak link in the system.
Any thoughts??