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Old 03-17-2009, 12:46 AM   #2
Scooby Newbie
Member#: 184638
Join Date: Jul 2008
Location: central valley California
2002 wrx wagon wrb
97 cummins 1ton 4x4


could be lifting boost at high rpm/boost

run to kragens or whatever they call it in your neck of the woods and get the test kit.....its like litmus paper you dip in ther and it will tell you if you have combustion particles in your coolant.......then you know its the head. otherwise it could be in the plumbing. im not looking at a diagram right now so thats just a shot in the dark.
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centeno711 is offline   Reply With Quote