Question about Cars & Trucks
One of the vents isnt opening for some reason ,i would guess ? could be the vacumn pipe to the operating mechanism is split or if electric then the unit has failed ,you will need to get to the part to find the fault and i have no practical experiance of this vehicle to tell you what you need to remove to obtain access .
Posted on Dec 06, 2014
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Posted on Jan 02, 2017
Did you check your coolant level or was it low and you added to it at some point? If so the system my need to be bleed or worst case the thermostat is going bad.
Posted on Jan 03, 2009
the drivers door switch is most likely bad, they get used the most and wear out first, the connector on the back of switch may have come loose and not making good electrical contact, remove switch and check connector and if still not working need new switch, the windows are all on same circuit and either all work or none work so not fuse. extremely rare is a short in wired but not likely.
Posted on Aug 18, 2009
Hey i found a link for you with step by step pictures and literature on how to fix this problem. Apparently it's a common thing with yukon/tahoes. Web site; http://www.fullsizechevy.com/forums/general-discussion/technical-maintenance/313280-tahoe-rear-air-has-no-heat-just-blowing-cold.html. Good luck, hope i helped.
Posted on Dec 11, 2009
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