I repaired 2 servos and replaced a 3rd for the AC. Now I have ice cold air, hot hot heat, and it comes out of whatever vents I want it to, and it does all of this without sounding like Gepetto’s workshop is under my dash!
The driver’s side servo was super easy to get to and repair. worm gear had some play causing the gears to slip a little. Followed this guide on YouTube by Froggy. No clicking from driver’s side!
the passenger side ones were an absolute nightmare to get to. Tore my hands up. The 2 with issues were the ones up against the center console. You’re supposed to drop the entire blower assembly, but I didn’t want to deal with all that. In hindsight, if I have to do this again, I will.
the mode servo had just slipped off the track. The mix servo unfortunately had way too much play and needed to be replaced not repaired. Toyota dealer had it in stock, and was able to pick it up along with the 2 castle nuts and cotter pins for my LCA job next weekend.
as you can see from the picture below, there’s no room at for your hands or an sort of socket extension. A long Phillips head was great for removing the screws, but trying to get them back in place was a nightmare. Even with a magnetic screwdriver, you have to snake them so much they fall all off a ton. At least they did for me.
after 2 hours of trying to get the last screw in, I tried shoving some candle wax in the head of the screw. This gave it just enough sticking power to the screwdriver.
drove around for an hour - changing ac settings a ton - no noise at all except for air blowing. Fantastic.
Do you have the part numbers needed for these blend doors? I think mine are also going bad. takes 30min to get cold air on the driver side and now I have a random motor tick from under the passenger side... Sounds like a fun project.