Blend door actuator

[Donald Mitchell]

Looking at mine with the dash out I think dirt gets in and makes the doors hard to move and that's what kills the actuators. A lot of them have cracked and broken gears from the stress.

 

[dave s]

Well your top picture is closer to what mine did. That metal piece came off the shaft and was still connected to the arm with the clip. I took my ashtray out and was able to get that pushed back on but. It seems to be working but I did not realize it was D shaped. I must have got lucky as it pushed right on and now I have defrost again. Now you got me thinking did I get it indexed right on that shaft. Hmmm...

 

[east302]

It should only go on one way so you’re probably good. If the air flows out the correct vents, I wouldn’t worry about it.

 

[Donald Mitchell]

I just found that if the gear isin't installed in the right position it may not push the door far enough. PIA exemplified !

 

[walczyk]

Thank you for posting these part numbers! They saved me a lot of headache, is there an easier way to look for part numbers?

 

[Erik the Awful]

Yup. Google it.

EDIT: Doh! You meant finding what part numbers to look for. I thought you were looking for parts sources. Made myself sound like a real wiener there.

 

[east302]

Thank you for posting these part numbers! They saved me a lot of headache, is there an easier way to look for part numbers?

One of these days I’m going to print out these diagrams, but this site has the GM part schematics:

Spare parts catalog Chevrolet EPC Online > nemigaparts.com

Parts catalogs. Spare parts catalog Chevrolet EPC Online.

nemigaparts.com