I recall having a stuck thermostat on a family station wagon when I was a kid. There were hammering sounds coming from the engine. The mechanic we pulled into just removed the thermostat and we drove on without problems. I would check the thermostat to see if it's stuck shut, or just replace it with a new one.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.