Review on 🔧 ACDelco GM Original Equipment Air Inlet Door Actuator: Optimal Heating and Air Conditioning Performance by George Scoles

The markings on the drive I removed are exactly the same as this replacement so they are the same as the original equipment. When I first took it off last summer, I removed the dashboard, which made it a little easier to access (but not by much). Then I rotated the gear 180 degrees and it seemed to work for about 8 months and then it started making the clicking noise again. It seems to have 3 screw holes but I find it almost impossible to put the 3rd screw back in so I only used 2 screws which is enough to secure it. This time I replaced the whole block. Instead of removing the dash I removed the glove box and with a thin rubber glove on my hand I was able to use the 5.5mm socket and loosen both screws easily. When reinserting the screws, the bottom screw is light enough, but when trying to put the top screw in, it fell out and seemed to be gone. I can't find it anywhere. Now it seems pretty secure with one screw and no clicks.