Originally Posted by
avguy
Sounds like you're saying the battery light came on immediately after the T-stat blew up, and wasn't happening prior to that. If so, I'm wondering if that flying coolant is somehow causing this. We know that water and electricity aren't friends, and with the stuff going everywhere, maybe some of it is making a partial ground and causing a voltage drop. One thing that comes to mind is the fuse box. I don't know how well that box would shed liquid - perhaps enough of the stuff got into it and leaked down into the area of the big wires. But it could be elsewhere also - maybe pooled around some wire which is out of sight. Lots of speculation here on my part. But being a tech, I think you would have found an obvious problem right away, which is why I'm thinking out of the box on this.