Question about 2000 GMC Sierra

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I have a 1999 GMC Sierra with a plugged drain hole causing water to leak onto the front right floorboard. Where's the drain located?

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Here is link to your HAVC system to your Sierra and #22 is where your A/C drain hose is located on the fire wall, passenger side. Find the hose to make sure there is no dirt that has clogged up the tube.
Thank you for using fixya. http://www.compnine.com/index.php?u=1&year=1999&artnbr=TC09-603&artsfx=NULL&supplgroup=NULL&catcode=56C&modelcode=C&makecode=LG&modelseries=NULL&uid=1&modelid=7036&capuid=1&majorgroup=09&grouptype=B

Posted on Jun 07, 2010

  • 1 more comment 
  • diz224 Aug 28, 2011

    Yes Sir,

    I have the same problem with my 2008 Serra. Is the drain plug located in the same spot? If not where is it for this year?

  • Harvey N Tawatao
    Harvey N Tawatao Aug 29, 2011

    Yes the location is about the same area, here is a link to your year of Sierra's drain plug and it's #17
    http://www.compnine.com/index.php?u=1&am...

  • diz224 Aug 29, 2011

    Thank you for the information, however, I seem to be missing some info from what you sent. I keep on getting only the body and suspenion areas. Would you please send it again.

    Diz

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