Mode door operating backwards

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ChainBlue

Junior Member
Joined
Mar 30, 2023
Posts
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Location
Memphis TN
First Name
Chain
Truck Year
1986
Truck Model
C10
Engine Size
305
I did get this figured out. I attached two of the vacuum lines backwards. It was the actuator on the backside of the heater box. It was a pain to undo everything to be able to reach it, but swapping those two lines fixed it.
 

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