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low air volume from vents

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Old 12-03-2009, 02:59 PM
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Default low air volume from vents
deleted a.c installed block of panel now i am getting very low air pressure from vents when running heater any body have ideas on what i screwd up thanks guys
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Old 12-03-2009, 04:08 PM
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Check that the blower motor is turning on when you turn on the hvac.
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Old 12-03-2009, 04:12 PM
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blower motor is running at all speeds
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Old 12-03-2009, 04:22 PM
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sounds as if a vent door isnt open, not sure how they work though, maybe by vacuum?
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Old 12-03-2009, 04:56 PM
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Yes they are vacuum operated. Check to see if you knocked a vac line loose under the hood. Check for vac at the selector ****.
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