Question about 1992 Chevrolet Caprice

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No air out of vents

92 caprice no air out none of the vents motor running the right direction air dam working above fan and above evaporator squrral cage is working proper

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  • greg397 Jan 16, 2009

    it had the wrong motor in it and it was turning wrong direction



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The vacuum lines running to your heater box under the dash isn't opening the different doors that allow it to change from defrost to dash to floor all this is under the dash and you'll have to get under there and see which one is leaking or disconnected

Posted on Jan 15, 2009

  • Greg Wilkins
    Greg Wilkins Jan 17, 2009

    I'm glad you got it fixed! Come back we would be glad to help your every need



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Heater not blowing hot air

When the fan motor is loud it means its out of balance. Kind of like a dishwasher.

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Difficult to describe without pics, but…:
Once you’ve removed the glove box (I assume you’ve done this, and maybe you already have the motor out, in which case you can ignore most of this down to the underlining)
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Pull the housing out far enough to unplug the electrical connectors (at the lower right edge, right above the kick panel) and remove the blower assembly housing.
If you’re replacing the blower motor itself, or either of the blower fan wheels, separate the two halves of the housing, remove the motor, remove the retaining clip(s) and remove the fan wheel(s). Easier said than done in may cases. The wheels, from heat and cold over many years, become very set on the blower rod. You'll have to work them off using whatever break-free lube you can find to do it, and a good deal of slight twisting, etc.
Installation is reverse. Then check for proper operation, before you put them back.
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1 Answer

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There could be a recirculation vent door,stuck,or the blower motor is bad.Hard to tell .Not being there it is hard to diagnose.But it does sound like both of these symptoms,so I know what to tell you .Maybe more information would help,I don`t know.Rmove the blower motor and inspect it for broken,or cracked fan cage(squirrel cage fan).Also check motor for abnormal play(side to side movement).Hook fan up to battery and see if it runs fast and not vibrating,or noisy.I hope I was some help,If I can help,let me know.

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