Rear HVAC weeks and nnow again intermittent

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MikeW

Member
Joined
Oct 27, 2016
Posts
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Location
Jacksonville, FL
02 Tahoe. have seen several threads on rear AC/Heat problems but I am having a different issue. My rear overhead HVAC controls are always left on high. When I start the Tahoe - it is a crap shoot if the rear HVAC kicks on or remains off. This has been going on for months. Once time it was constantly off for 2 months then out of the blue I hear it blowing - ran for about 3 weeks and now last 2 days has been off. Again, I am not messing with the controls. Electrical issue? Anyone have any ideas? IS the HAVC connected to the ignition somehow? Thanks all in advance!
 
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