06 Silverado 1500 5.3L. A/C just started acting screwy

Asked by Sep 21, 2012 at 09:23 AM about the 2007 Chevrolet Silverado 1500 LT2 Ext. Cab LB

Question type: Maintenance & Repair

06 Silverado 1500 5.3L. A/C just started acting screwy. First it doesn't blow hard, intermittently. Then
yesterday, It all the sudden started working correctly. When i turned the truck off, the a/c stayed on and
kept blowing for a while with the truck COMPLETELY OFF!!  What could cause these issues? Any help
greatly appreciated.

1 Answer

31,855

Possibly a bad relay staying closed or a bad ignition switch

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