Question about 1998 GMC Jimmy
Try this relearn procedure.
turn key on engine not running
set controlls to: vent, tempature cold, fan on low
turn key off
wait 30 seconds
turn key on do not start engine
wait 90 seconds while system recalibrates
turn key off
now start the engine and recheck for a/c operation
if this dosent fix the tempature controll than you will need to replace the blend door motor
and it is behind the glove box, it is black and has one plug on it. if you have to replace it make sure
you go through the relearn procedure afterwards.
Posted on Jun 14, 2009
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Posted on Jan 02, 2017
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