Rex Crews wrote: ==================================== Here's a question regarding the heater in my '59. Having replaced the = core this summer I was expected to be toasty all winter in my Crown, but = now the following is happening: When I first start out in the morning, = the heater works great, but when I hit the freeway, it grows colder and = colder until I stop again, then it warms up. If I stop completely for a = few minutes, it sometimes works fine the rest of the day, then again it = works until I hit a high speed. ========================== I had the same problem with a 77 Monaco. The thermostat was bad - right from the factory no less. It was stuck open. Didn't notice it until the Autumn weather . . . That'd be my guess . . . Dan Wing Marcy, NY USA imp1983@xxxxxxxx ________________________________________________________________ Sign Up for Juno Platinum Internet Access Today Only $9.95 per month! Visit www.juno.com