Under the Hood HVAC Actuators Re-cut

[@mr.joseph7806]

My old blend door acuator got stuck in defrost. Installed a new one and it got stuck in defrost. What is the issue? Never mind. I swapped that main gear now it works. 😊 Thanks

[@thomaswalsh3362]

why isn't GM doing anything about this BAD piece of equipment they installed year after year ??????My Family has been chevy from the 1950s and I m sure I wont buy anther one

[@MichaelLass]

Had new Dorman one clicking. Couldn't figure out why it wouldn't reset. Set the gear center at 120 count, but always clicked around 40. Swapped the Dorman gear with the broken one in the OEM and it reset with out gears skipping at 40. Guess the cheap Chinese gears aren't good enough. Wouldn't have never thought about just swapping the gear without watching this video.

[@ChiDraconis]

Thanks - I forgot about Dorman ○ just removed the glove box and looked; Need to know why and how the 3-wire effects positioning • Per your report it may be a tooth on the gear ~ maybe I should watch the video huh?

[@arthurmiller8336]

Which one is the best that will last a long time???????

[@josedejesus6185]

Excellent tip! Thank you very much for showing us the inside of each one of them! It seems that the big gear is the weakest link! My hat off to you! Keep them coming!

[@williamblankinship9104]

As always Brian...Your The Man!

[@stephengrant2677]

Remember the old sliding buttons with cables that froze from rust. The nicer cars had vacuum pots

[@randy1203]

I watched this video and I enjoyed it. Here's my problem. I have no a/c but plenty of heat. I checked the plastic gears none broke. With the actuator off I watched the knob move as its resetting. I couldnt nove it with my fingertips! This is so puzzling ..

[@sluggy59]

I "really" enjoy watching your Vids !! Your an Awesome Mechanic and a likable person to boot !! Keep up the great work ! :-)

[@TheIrishSonOfGod]

Bro you did it! I was ready to give up and watched your video about grease being on the little sensors below the gear. I took it all apart like bill nie the science guy thanks to you. I got something backwards and it now moves but does not correlate tothe screen but who cares your the man broski

[@coltjones6986]

The Dorman made in china ones are junk. I learned the hard way. Spend a little more and get the one made in Korea.

[@shadowdog500]

First response, yahoo!!! The first video was fine. Chris

[@mackm2367]

Mine blows hot air all the time and doesn't make noise will this work before I waste 40 bucks on the cheap model

[@DPaulHorton67]

Didnt he show at the end the split in the gear which makes for a wider spacing and that's what fails in the actuator? I pretty sure he did then he proceeded to put that same bad gear with the split back into the factory actuator and calls it good? What did I miss there?

[@jdawg3712]

He was just showing you how to reassemble it once you install it with a NEW gear. Illustration purposes only!

[@theintake8961]

Awesome! Thank you always up for saving money.

[@RobsPackanShine]

cool

[@georgemalek6601]

Thought you were demonstrating the Replacement / Upgrading of the plastic gray gear, but you demonstrated replacing the same cracked gear…… Why? Doesn’t the gray gear actually fit?

[@onemoremisfit]

I have a 2002 Avalanche with climate control (automatic HVAC) and the recirc actuator has positioning.

[@holliedorman70]

what if there is nothing for the gear to grab on to

[@onenikkione]

but sometimes getting to those can be a beeachot

[@gristlevonraben]

wow. I think I'd rather clean it up, and epoxy it together, then make it less tight, and then epoxy it onto the driver sleeve or bushing. 200 dollars is a lot of money for a little plastic gear replacement. holy cow. Really informative video, Sir. Thank you.

[@12vgs8606]

+Gristle Von Raben Isn't it possible to place the wheel in different location on the shaft? I thought that gear wheel was not rotating full 360 degrees. If so, you could orient it such that the repaired teeth would never have to mesh.

[@gristlevonraben]

maybe so. cool idea.

[@1cnfour349]

Haven’t seen you in a while

[@MrJohnnyDistortion]

In my '07 Cobalt the door is tapping. Is it the actuator on the passenger side? Anything else I should concern myself with? Thank you.

[@sew04ss]

My 04 Silverado ss recirculation actuator has 5 pins but my dad's recirculation actuator in his 03 Silverado has the 3 pins

[@armandomrgl85]

Great explanation so the recirculation one is what would cause my climate control to stop switching to defrost to front vents or floor? My 2000 Nissan Altima only blows air from front vents & doesn't switch to defrost or to the floor when I push the buttons... Thanks in advance if you have time to answer my question 👍

[@erics9213]

Brian, I replaced all of the actuators in my 06 Dakota w/Dormans due to the clicking noise. I tested each actuator on the bench before installing. Should I have aligned each actuator before I installed them because I having trouble again?

[@robertcromwell9736]

I got just the gear at amazon.

[@NYPD79]

I got mine on Amazon. For 13 dollars. 2012 impala. But mine is only.2 wires.

[@keithsimmons5130]

F

[@birdwing98]

4:42 That position sensor looks like a cheap "volume control" type potentiometer. Hope I'm wrong.

[@Guillotines_For_Globalists]

All of the parts in the $270 assembly are probably made in China as well.

[@DENicholsAutoBravado]

+Blaine Bugaski Nope. Made in Korea. Pretty serious laws when it comes to importing to America.

[@Guillotines_For_Globalists]

Korea is good. So is Japan. Taiwan is even better than Chinese quality, at least it seems to be.

[@jamesdewitt4825]

great video Brian. Can you do some videos for a 2003 Ram 3500 actuator doors. mine seems to just come out of the floor vents and the panel vents. Like your videos a lot, very detailed on them. Thanks. Keep up the good work.

[@punked6]

I fixed one blend door actuator on a honda pilot all it needed was some new grease on the circuit board.

[@ducklandwikeno]

Brian what stops it from going back and forth . just wondering . you need to reset it right .

[@martinmorris7157]

Dude, you just saved me on this actuator project. Exactly the same problem with the cracked plastic gear. Bought one for $50 and stole the gear. THANK YOU SO MUCH!!

[@shadowdog500]

Darn, we lost the link from the old video for to the guy who sells replacement gears on EBay:(

[@mib20000]

+shadowdog500 your in luck............ I bookmarked it . www.ebay.ie/itm/GM-Blend-Door-Actuator-Gear-Rebuild-kit-fits-many-GM-vehicles-from-1990-2013-/171384359235?hash=item27e74dc943

[@skibo3980]

SO how many 3 pins and how many 5 pins do I NEED FOR MY 04 CHEVY SILVERADO

[@sew04ss]

My 04 Silverado ss recirculation actuator has 5 pins but my dad's recirculation actuator in his 03 Silverado has the 3 pins

[@jennifersullivan7589]

Id like to see this done on the rear actuator for 3rd row on my trailblazer

[@arliebright]

Is it possible to add part numbers and dash locations of these motor/actuators?

[@ChiDraconis]

The part # system is now screwed-up

[@joshbrothers1980]

Good call

[@curiosity2314]

I wonder if anyone sells just the gear?

[@shadowdog500]

In the last version of this video someone posted a link to a guy who did just sell the gear. I wish I copied it down now that the link is gone. Chris

[@curiosity2314]

+shadowdog500 I had seen your reply after I had made mine, well if it is out there we will find it and it will be an inexpensive repair... Thanks for the reply!

[@GhettoWagon]

+Curiosity I saw them on ebay the other day

[@mib20000]

+shadowdog500 www.ebay.ie/itm/GM-Blend-Door-Actuator-Gear-Rebuild-kit-fits-many-GM-vehicles-from-1990-2013-/171384359235?hash=item27e74dc943

[@curiosity2314]

+Ed Yager Perfect!

[@sawmaster6095]

I must've heard 5 different interpretations of how to align the potentiometer (blue gear), none of them are consistent with each other. How do you know you are correct in aligning this gear?

[@punabuilt808]

You can test the resistance output of the potentiometer (blue gear) to know when it is aligned properly. Test resistance between pins 7 and 9 and pins 9 and 10, turn the blue hear until resistance is the same at pins 7 and 9 as the resistance on pins 9 and 10.

[@sawmaster6095]

@@punabuilt808 Thanks for the reply. I actually just ended up finding one in a junkyard and taking it apart to see its relative position. Here's a problem I'm having now though: I cannot get these actuators to recalibrate! No procedure I have used on the internet has worked. Because I fear burning out the motor, I have left both the heat and the mode in the vertical position on my hvac control. Any ideas? Car is a 2000 GMC Yukon 5.3L SLT

[@punabuilt808]

@@sawmaster6095 I wish I could help but I'm having the same problem. Changed the mode door actuator and both blend door actuators but no matter what I do it will not calibrate. If I unplug the HVAC controls instead of the HVAC fuse it calibrates and works for about 10 minutes then it defaults to defrost and is unresponsive. I also installed a brand new HVAC control module and nothing works. Really makes no sense. I gave up and ate the cost of parts. Sent my customer to the dealership so they can calibrate the chevy tech 2 scanner :(

[@sawmaster6095]

@@punabuilt808 Well guess I'll take mine to the nearest dealer too. The design of these things is crazy to me! For starters, it shouldn't use a potentiometer for positional feedback, it should use a Hall effect sensor! I mean come on it's in a car, which vibrates all day long, the thing's bound to get out of wack! And why does it have a million little plastic gears? If it were up to me, I'd use a stepper motor, Hall Effect sensor, and do away with all the black-box digital crappage that makes these things impossible to fix!

[@UNITED2009100]

@@sawmaster6095 The part makers like Delphi, who I worked for in Kokomo call the problem you ask about CONTEN. The engineers add CONTENT to everything because that's how they make money. The more CONTENT to better for them! I agree with you, the simpler the better, but that is the old days.

[@robhalley4323]

cheap ones are same quality as the "OEM" ones. just go with the $15 version on ebay

[@johnbigbooty]

Good post and nice job! I just went to my first "actuator rodeo" on a 1998 Pontiac Grand Prix with the dual-zone HVAC system. Of course, it was the driver's side that needed to be replaced! Not very easy!