Well, I'm stumped with mine for sure.

I took out the stat, bought a new 180. The old one was a 195 so I must have tried to adress this problem before. Boiled em both with 2 thermometers One a meat thermomerter, one my radiator cap with the built in thermometer.

Both thermometers agreed. The new stat opened at 180, the old one opened at 195. Just like theyre supposed to. Cooled em down and both shut completely.

Put the old stat back on. The 195. Fired up the car an let it warm up.

Well,,, As warm as it gets.

Cap said 130. Gauge in car said 130. Now just so everyone knows my gauge in the car is taking the reading offa the front of the block right where my idiot light sender is located. I just teed off with plumbing to keep the idiot light sender.

Checked upper hose. No circulation.

Plain as it is that engine just isn't getting warm.

Now what? Grille tape?