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05/10/2008, 6:08AM
why overheating

cr overheats when temp outside reaches 70 degrees. removed thermostst, full of water. runs fine, overheats and stalls sputters and runs like crap. is head gasket gone?

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05/10/2008, 10:27AM

See other post.  You need to do a cooling system pressure test to determine head gasket failure, or a compression test on each cylinder.

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05/10/2008, 11:00AM

Could be a clogged Radiator, or the engine block could have a blockage somewhere. Take the Tstat completely out and drive without it. Is the coolant clean or rust colored?  Also, does the heat work?

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