electrical problems with 1995 white gm volvo intregal sleeper

Oh the coolant temp gauge in the truck doesn't work either happened last time I had it in for repairs

 

. Coolant level isn't low radiator has no cap, just on coolant recovery tank but thanks will check it but truck only runs for 30 seconds and quits

 

I can try charging batteries again but i checked and it's charging ok yeah older truck without a computer would have been better. The guys in the shop think there's a ghost in the machine ?!?!?!

 

Volvo engine

 

Ok got a battery charger on the batteries are a bit low looks like. I talked to Volvo shop foreman says if there is low voltage on batteries then it's a concern with ecm but I think this is only half the battle. It might stop the check fluid light from coming on full time. The engine started ok but belt was squealing before so may need a new belt if charging batteries helps. Can't get anyone to come from the city out to where I live because it's not what these shops want and I'm not about to pay to have it towed unless I absolutely have to. I don't have a cliff to push it over around here but that's been on my mind after all the troubles I have had with this truck......

 

I talked to shop foreman at other shop this morning that I had taken it to last year they said coolant was ok They spent a lot of hours trying to get it working and when I drove it home I had no issues with the fluid light. I have ordered a new fill cap and pressure cap for recovery tank just in case but when running truck the coolant isn't sucking out of it so hard to say really if bubbles are forming. All connections are tight. See if that helps. Oh ecm was swapped out at one one time so it's not the ecm. Wiring or a short in the system maybe?? If this truck was 6-7 years old I'm sure it would have been an easy fix but it isn't......