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vent issues

Discussion in 'General Chevy & GM Tech Questions' started by countryboy73703, Jun 14, 2010.

  1. countryboy73703

    countryboy73703 Rockstar

    alright so... my vents used to work fine.. however, about a month ago they don't compeletly work right, if I adjust it to blow only thru the defrost vents then it's fine, but if I try to turn it so that it only comes out of the front or floor vents it does, but it doesn't cut out the flow going thru the defrost vents, and I read that there is might be a vaccuum hose that controls the vent duct doors, but if so I'm not exactly sure where, I know that it's on the fire wall on the inside of the engine compartment, but i don't seem to hear anything leaking down there, so I'm not sure, any other ideas.. thanks, oh and it's the same for the heater also, so it's not just when it's on A/C
     

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