[7T9Shark]

I haven't pressure tested it yet, but two days ago, I topped it off with coolant and let it idle in the garage for 30 min. Temp guage came up to normal and stayed there. So, I got brave and took it out for a drive for a few miles - temp continued to remain normal. Then yesterday I drove it 3miles into town for a hair cut. After cooling down for 20 min. I drove it a few more miles on an errand and the temp guage rose to 260 with no heat coming from the heater.

While this was going on, I would rev the engine off and on and the temp would come back down and the heat would come back. In the mean time the system puked a gallon of coolant out through the overflow tank.

According to troubleshooting info on ALLDATA, this points to a plugged radiator. OK, but if so why isn't it consistent? The tubes look real clean, but I don't see any flow coming through them. That doesn't seem right.

Looks like my next move is to remove the radiator and have it flow/pressure tested.

Anyone else have any ideas?