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I seem to have a mystery coolant leak in my 95 960, and need to find the cause before any serious damage. A month ago I replaced the heater core hoses because they were soft and leaking. The leak stopped. Today the coolant was down again. The rad hoses are 1 year old, coolant flushed at the same time. Not sure if it is upper rad neck, head gasket, or other. I am reluctant to have a dealer get into this mix as they may not fairly diagnose. What is the best way to pressure test the system as a DIY?
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