What is your question?
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What is your question?
AC only works on a speed and AC light blinks every now and then. When the car is on the run, the AC is mostly fine.
What makes this problem better or worse?
When the car stops for roundabouts or traffic lights
How long has your 2009 GMC Acadia had this problem?
2 months
While stopped at stop light or in slow moving traffic - radiator fans must provide the needed airflow .. At highway speeds - RAM AIR is sufficient.