My 1995 PSD ran fine yesterday. Today it acted like it had a low battery. As far as I can tell, the batteries are fine. I put a trickle charger on both and it indicates they are at full charge. The lights are very dim, the buzzer barely buzzes and there seems to be a pulse of slightly more power every three seconds or so. I can't find any loose connections.

Thinking back, I remember stopping to order fast food and it didn't turn over. I thought maybe it was the ignition switch not connecting properly and a couple of times sound wouldn't come out of my radio even though the display indicated it was on.

I don't have a clue.

 

are the battery cables clean? they need to be removed and cleaned until shiny on the cable and post.

 

Corrosion on the cables and post is what it was. I came in off the road and cleaned them and it had full power and started right up.

Sometimes it sucks to be a truck driver and have a problem that gnaws at you and you can't do anything but worry until you get home again.