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floydc
New User
Jan 7, 2014, 5:02 AM
Post #1 of 2
(932 views)
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2003 trailblazer 6 cyl 124000
my heater will not switch positions will not go to defrost or floor
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Hammer Time
Ultimate Carjunky
/ Moderator
Jan 7, 2014, 7:02 AM
Post #2 of 2
(917 views)
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There is an electric actuator/motor on the left side of the HVAC housing that operates that. reach up there and see if it is just jammed or something. It's also possiblr for a pencil or something like that to fall down the defroster and jam the doors. That would be a real big problem.
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