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Discussion Starter · #1 ·
I am a new member from Arizona and have a 1999 Suburban. Recently I have heard the temperature door open and close erratically several times. This occurred while using the air conditioner, and after turning the air conditioner off. I'm guessing the temperature door actuator is going bad, is there anything else I should check before I replace the actuator?
 

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Nope sounds like you've isolated the trouble ok. Search the posts, I'm sure the swap is covered with enough detail. Take some pics to share if you have time.
 
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