towin'gmc
Junior Member
- Joined
- Mar 8, 2012
- Posts
- 15
- Reaction score
- 0
- Location
- Montrose, CO
- First Name
- Chad
- Truck Year
- 1987
- Truck Model
- C2500
- Engine Size
- 454
First of all thanks to 89 Suburban for all of the pictures and research. I have the vent/heat door working against that strong spring and the plastic tab is broken that connects the servo to the door…. so it will not close. Both of those doors work on linkage but why does that spring work against the servo action? That tab part is prob not avail anywhere. Also the servo on the defrost seems to cycle back and forth by listening to it over 30 seconds it will move and then back. The vacuum lines are in place OK, could that be a leak?
I just saw AJII post on this door tab and thanks for the part #! I will look for one.
Any ideas on the cycling door?
I just saw AJII post on this door tab and thanks for the part #! I will look for one.
Any ideas on the cycling door?
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