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Old 1 Week Ago   #1
jrd1990zr1
 
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Join Date: Dec 2005
Location: Delanson, NY
Posts: 910
Default 1990 Blend door/heater core box replacement

Hello,

The blend door actuator on my 1990 went bad for a second time after 6 years. Since it is such a PIA to get to on the top of the heater core box I am thinking about switching to the 95-96 heater core box which has the actuator on the bottom. Has anyone done this and do you have a write-up and/or photos? Any help or advice is appreciated.

Attached is a write-up I got from Marc H. to replace the 1990 actuator, but after starting this I don't see how you can get to the one screw from inside the car. Too many things in the way.

​​​​​​​Thanks
Attached Files
File Type: pdf Air Door Motor Replacment.pdf (2.26 MB, 32 views)
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1968 convertible Lemans Blue,
1986 coupe Medium Blue NCRS Top Flight (sold),
1990 ZR1 #2529 Red NCRS Regional and National Top Flight (sold),
1990 ZR1 #2124 Charcoal Metallic NCRS Top Flight 2010 & 2018,
2003 Anniversary Red Convertible (sold)
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