Climate control question re: '87 5kTQ

[Denis]

  yes right, me too i got it.
  The flap inside was broken and even the stepper motor unit that control the flap was working  the flap was full openned and full cold air come in.

  you can see it if you put the temp from low to hight , the stepper motor that adjust the flat lll go from one side the the opposite side, so the inside air should goes cold to hot air,,, if the flap work or the little engine work...

  Ðenis


    ----- Original Message ----- 
    From: Kneale Brownson 
    To: Wallace Offutt ; quattro at audifans.com 
    Sent: Friday, November 05, 2004 12:46 PM
    Subject: Re: Climate control question re: '87 5kTQ


    The valves are plastic.  The PO probably replaced a plastic valve that
    broke with a piece of pipe.  A/C won't turn on with the system set to
    "econ".  But you might get cold air anyway because of a failure in the
    system that controls the air flaps in the heater core box.  Check out the
    climate control information on Scott Mockry's wonderful website:
    http://www.sjmautotechnik.com/trouble_shooting/ac.html

    At 08:30 AM 11/5/2004 -0600, Wallace Offutt wrote:
    >Question for you folks:
    >
    >The previous owner of my '87 TQ for reason had replaced the heatercontrol 
    >valve with a straight piece of pipe. When I found how cheap the valves are, 
    >I figured there must be a reason for this... Well, now that it's getting 
    >could out, I'm beginning to get an idea: the heat seems to always be on when 
    >the system isn't turned on (but w/out the blower running), but when I turn 
    >the system on (regardless of whether I choose econ, auto or what, and 
    >regardless of what temp I select) the AC seems to turn on. I figure it might 
    >be some module I read a vague description of that lies somewhere behind or 
    >beneath the glovebox... any thoughts?
    >
    >Thanks,
    >Wallace
    >
    >
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