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Registered
Join Date: May 2003
Location: Bloomfield Hills, Michigan
Posts: 11
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I had the same hot air issue with my 1986 951 climate control system. I replaced the heater control valve and it solved the problem. The valve is located on the fire wall above the clutch housing. It is vacuum actuated. Oh by he way... Audi uses the exact same valve and it is considerably less expensive then the Porsche part.
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