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one of gods prototypes
Join Date: Nov 2001
Location: Orlando florida
Posts: 9,741
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there should be heater shutoff valves which control the flow of hot water to the cores, one for the left, one for the right......i have seen them fail many times on bmw/mb's.....they are usually controlled by pulsating 12v to control the amount of flow iirc......but should Shut when they get 12v......
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