CrazyDave
Newbie
I believe the problem is the air actuator control. I have a 93 GMC ecsb 5.7. As far as I can tell from the manual there are 3 actuators. How do I know which one is bad? Do I have to remove the entire dash to access it?
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You need a blend door actuater about 30/40 bucks and kind of a pita to change