[jwinkler]

Got a new heating problem that's just showed up recently. When I start the car, it gets up to temp, and then keeps on heating up until I get underway. I've got a 180 degree thermostat, and temp will keep going up to 220+ before dropping back to normal running temp (roughly 190-195). Once temp drops back to normal, it'll stay there while moving, and get a touch warmer if sitting, but otherwise behaves.

Then, if I make a short stop (10 minutes or less), when I start the car, temp immediately shoots back to 220+, once again, until I get underway.

So - do I have air in my radiator, or somewhere in the system? Does bringing the revs up when getting underway get water flowing and drop the temp? I'm planning to drain the radiator and refill, as well as check the thermostat, but I doubt the thermostat has failed, mainly because once the temp drops after spiking, it stays in the normal zone. The problem only happens on startup.

Any suggestions, help, or ideas are greatly appreciated.

Thanks,

JLW