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Showing results for tags 'When Vacuum Goes Bad'.
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Deuce's air flow to the interior falls up to the defroster when under boost regardless of where the HVAC panel is set (except defrost, of course). I've checked the vacuum canister and it holds vacuum and followed the vacuum line to the HVAC. OK, vacuum operates the diverter and the HVAC directs the vacuum. Where is the check valve? There has to be a check valve otherwise the vacuum canister becomes a pressure vessel when under boost. Is the check valve internal of the canister?? What say you Collective?
