I'd have proper diagnostics ran on the vehicle. To diagnose valve seals being bad they have to do more testing than "it runs crappy".
Over heating can cause major damage, but don't get taken for a ride. Get wirtten estimates, and shop around. If they are all shooting very high, check a local junk yard to see what they would charge to swap an engine for you. You may walk away with an engine w only 30k miles on it for less than the fix of yours. They usually give a 30 day guarentee too.
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Saturday, August 18th, 2007 AT 1:12 AM