All are good and tight. No corrosion. Starting batteries are 6 months old and have traveled from Texas to Florida with no problems. I will check the voltage to see with the ignition on, glow plug on/off and see what the difference in voltage is. It acts like there is something electrical that is not closed/open and I cannot figure it out. I have ran the slides in and out, shut the door, air brakes knob pushed in and out. Engine is in neutral. Puzzled? I feel like it is something simple I am missing. I also have a cross over switch that combines house and start batteries and that does not effect. Thanks for your reply, I will check the voltage.
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