HVAC Vacuum Line Question
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Joined: Jul 2019
Posts: 20
From: Springfield, MA.
HVAC Vacuum Line Question
On my 1987 MC I have two small vac lines coming out from behind the AC housing. I assume one is for supplying vac to the vent doors and the other goes to the water switch for diverting water to/from the heater core. Is this right? Which one is which? And how do they plumb specifically? Thanks for any help.
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