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Overheated Jeep 4.7, blue goo in waterjackets
Posted to Technical Discussion Forum on 2/4/2006 9 Replies

Hello all,

A customer brought her 2000 Jeep Grand Cherokee 4.7 in because she could hear water gurgling in the heater core. We found exhaust in the cooling system via gas analyzer. After removing both heads which are badly cracked, I noticed a hardened light... Login to read more.

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