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no heat 900

posted by  Onkel Udo II on  Sun Sep 14 19:05 CST 2014
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last visit: Fri Oct 24 08:50 CST 2014
[RELATED]

Very simply, if the temp gauge reads normal, AC works and there is coolant in the res...only two things can be wrong:

Vac is not reaching the heater valve
Heater core is plugged

This is of course barring complete heater control valve failure which is not at all unheard of...particularly for non-Volvo OEM valves. This is one of those place, OEM is is the only correct answer.






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