captjima

The chassis batteries are 2 weeks old and fully charged. I had the alternator tested and its OK. I installed a new belt tensioner and belt last year. I can't do too much until I am able to start the engine.

I have noticed that when the engine was under load that the voltmeter would trend downward. The engine quit once but restarted by itself before I could get off the road. Twice I have got a low voltage alarm. Getting ready for summer trip, I started the engine and it ran for about a minute and quit. I drove the rig 100 miles last week with no problem.Batteries are new. Engine cranks gauges work with the exception of the voltmeter. Any help is welcome. Newmar Mountianair Cat 3126 Freightliner X/C