> Deposits in radiator are clogging it, reducing flow rate. That would be my bet. New radiator, or find a radiator specialist who would= unsolder the top and bottom tanks and rod out the tubes. Had the latter do= ne one on a car I had, and it made a world of difference. --=20 Scanned by iCritical. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .