How to fix 2002-2007 chevrolet ac that switches to heat on its own- drivers side blend door actuator

Drivers side AC would switch to heat by itself. Blend door actuator needs to be taken out and cleaned. I just used a paper towel and it has been working fine ever since.

[@AzTrailRider57]

Back in the good ol' days that door would be operated by a cable that's attached to the temperature slider... and it ALWAYS worked...

[@RedIron1066]

Damn right…and those days are long gone. :(

[@derekstout6147]

Not only did you show me how replace my actuator, but you explained the how and why, which was awesome. Thanks for this great video!

[@kcstreets816]

These are the guys that deserve all the subscribers on KZbin! Dude you literally saved my life from this 100 degrees weather! Thanks bud

[@leahhannahan2722]

THANK YOU! Female with NO knowledge of cars. Took me about an hour. As soon as I opened it, I saw a glob of lubricant that I’m sure was disrupting the connections. Thanks for the explanation as to why! No money, a paper towel, and an hour of my time.

[@davidstringfellow229]

Dude. Love your video, especially the analysis of the "fail safe design". Funny thing is my dealer told me I had to remove the entire dash board to replace this at a total P&L of $980. After watching your video, I pulled the actuator out and cleaned some grease from around the copper contacts. I put it back it and went through the "reset process" (disconnect battery and wait a few minutes, reconnect the battery; key on for 1 minute, key off for another minute, key back on for 1-2 minutes). My total cost was a single paper towel and a finger (and about 1 hour of labor). Thanks!

[@AndTeeter]

This cost you a finger!? ;-)

[@beowulf3303]

I just got hosed by a dealer! My sons car broke down at the bank less then a half mile from the dealer. We knew what the problem was but he was broken down in a bank parking lot! We had it towed to said dealer and all said and done $550 for tow and remanufactured starter! They will get you!!!! Wish it would have went down in my driveway so I coul have saved $450!

[@drew5992]

@@beowulf3303 I broke down in a fazolis parking lot I pushed it towards the back a bit out of the way and took apart the hub assembly. And yes ALOT OF UGLY STARES.

[@kyleboland6400]

I have been looking for the reason WHY these actuators have been failing and this video explains. Makes sense after a humid summer and 12 years my truck isn't making connections anymore. Thanks for the help!

[@nick1380]

I have this issue in my 04 Silverado 1500, I tried pulling the hvac fuses as some other videos suggested but still having the issue. I came up with an easy and cheap solution, Simply unplug the blend door when the A/C is working and the blend door will stay in the A/C position. Plug it back in after summer when you need heat again. Hope this helps!

[@FernandoRodriguez-ds5ri]

Genius!!!

[@johnattandwayne932]

Exactly what I thought

[@abelscaliber7969]

You are a Genius my friend

[@stevecoslet5469]

Thank you so much for quick fix unplugging works GREAT Steve

[@perezfamily2861]

Omg you might just have saved me hundreds lol.. I just bought a 04 Chevy Tahoe for the family weekend trips and didn’t check if the AC worked 🤦‍♀️ and since we’re going on a trip soon I thought I this was going to have to replace the compressor because I just added a can of ac recharge or whatever it’s called lol but only the back ac was coming out cold and the front driver and passenger side was coming out a lil fresh then hot so after seeing this video and coming across your comment you both might just helped me out a lot!!! Hopefully this works just until I can replace them both. Thanks guys! I learned something new lol

[@alfadawggaming8962]

This is the video I have been looking for, I have the exact same problem 04 Chevy Silverado 1500 LS 4.3l. I did as he showed, took it apart no broken clips, cleaned with alcohol Qtips and put back in, SWEET! Worked, same for years dealing with it. Thank you very much Diy!

[@BodyWeakDotNet]

You just cleaned it? You didn't have to bend the tabs out some? Or add grease to the board to have a smooth contract..

[@debietaylor6755]

I have a 2007 GMC Sierra Classic. I was having cold air on the passenger side and HEAT on the driver's side. Did the reset and it changed nothing. Manually flipping the door to cold air was perfect in this Tennessee heat. Many thanks for this video!!!! I'll try cleaning and resetting again. Hopefully, this will fix my problem. Either way, manual is working great!!!

[@drs6710]

Did that fix your problem?

[@stephengaertner6025]

The Blend Door Actuators are for sale on ebay too! Cost around $15.00... Thanks for the helpful free video. SG

[@FernandoRodriguez-ds5ri]

What’s the link at eBay

[@lookingbehind6335]

10.00 bucks on amazon from AA Ignition. Free shipping

[@stephenagaertner]

Also you may need to reset your cars HVAC computer system... That fixed my 2004 tahoe

[@alwaystinkering6972]

35 minutes. All fixed. I watched a video years ago of someone that took their dash apart... I decided to live with pulling the fuse once a month to fix the issue. That option left today with about 30 seconds before it returned to heat. Thanks for the easy fix.

[@gfunkkowboy]

Thanks a lot again my brother I wasn't able to remove the actuator it was in a real tight spot so I just turn on the engine and make sure it was on the cold position unplugged it and left it on plug and it work ever since .

[@Flakey86]

Really good note about just manually flipping the door open or closed if you're on the road.

[@memorexs]

This helped me. Turn on your A/C to the highest blower setting and let it run 5 minutes, then dial up the heat leaving the blower in highest position for five minutes. this should resent your actuator to correctly blow hot or cold.

[@johnmuller5403]

NOW YOU ARE NUTS!!!! PROVE IT??? LMAO!!!

[@odiarroyo6144]

@@johnmuller5403 his kinda right, because my was blowing cold on hot, and now hot on cold, so im about to go outside to work on it, cus is 118 here in Las Vegas, and I'm sick of it, ill try to make a video of all and put it up here so you can see

[@shaneintegra]

My 05 GMC Sierra did the exact same thing after I replaced the blower motor resistor. I have the "auto temp controls" and did the relearn procedure for it. It completely fixed it

[@MegaHowtoMan]

Life saver! I'm in Florida. In a 2004 Tahoe. That's doing the same thing. And I didn't notice that the passenger side was fine until your video.

[@odiarroyo6144]

Same here! I didn't know that the passenger was cold until watching the videos, im so mad with my self, i should research more instead of taking frion out of the sistem, now i have to put some more, but i think is cool because i took alot of day out which i think doesn't help with cooling, i rader have more gas than diy in the sistem, some times we lern the not so hard way, but this information and the knowledge that now i all ready have has no price, i can even make some money by working on others People's truck's, right?!!

[@stevejaramillo1317]

Thank you so much for your post, I could not figure this problem out for the life of me, pulling the fuse and letting it reset fixed the problem. Problem was occurring even after I had replaced a brand new actuator.

[@Stucknarutt]

Thanks for the detailed info brother ! I've had this happening (going from cold to scalding hot on driver's side) just periodically, on my 2004 GMC Sierra, SLT, Z71 for two or three summers now. Nothing but shutting the truck's engine off and restarting will bring cool air back and since it wasn't too frequent and I could get it back every time, I just added it to my long list of things to do/fix. I've had many other priorities ahead of it unfortunately but since it started, I've researched it a little on line, here & there and talked to a few people and had mixed info everywhere. Well it's now moved high on the list as it has recently started doing it every 5 to 10 minutes !! Dark leather seats and 98 degrees with a 108 + heat index here in Eastern NC, with this happening frequently, ain't gonna work !!! What you said about the logic behind the design/fail safe does make good sense. Thanks again Sir.

[@hectorrioss]

Stucknarutt ur right same with mine i gotta turn the truck off than start her up again to get it back cold bit mines on both sides so i guess ill be replacing both sides of mine

[@johnedward9011]

Great job. I've gone through several other videos where they were barking up the wrong tree. You know your stuff!

[@HonkeTonk]

This worked, 04 Denali DO NOT test actuator while disconnected from hvac door, clean the gear grease from brass terminals and bend contacts down just a bit for better connection.Don't forget to do the relearn procedure after re installing also. Thanks for the video help

[@djnemesis82pluss1877]

Nice video paid a grand to have all the actuators changed in my dash 3-4 years ago and it's starting to do just the driver side again. I'll be fixing this.

[@crxmovies19]

6 years driving me crazy . I'm trying this thanks .I have the same truck lly nation!

[@pdqresearch]

You're still saving people money....me, this time. Worked on 2004 Suburban.

[@xsmojo]

This still works. Had this problem for 2 years in an 05 Escalade and kept getting worse. It just started jumping to full heat after about 30 sec and could not get it to reset so I tried this. Not too hard, just remove the black cover under the passenger side dash and this actuator is visible on the bottom in front of the console. Only thing with wires sticking out in that spot.

[@carolpercle7035]

Real cool video ,watching the video I decided to remove the fuse and reinstalled it every thing reset save me a lot of time & trouble thanks .

[@permaguard3166]

You guys are great. I unplugged the motor when it was blowing cold air and the wife is happy.

[@joe5.097]

Can also disconnect it when it’s throwing out cold air and it will stay like that. Fix it by disconnecting it when it’s throwing cold. Worked for me.

[@pedroorozco134]

Smart guy thanks for the info! It just happened to me literally 30 min ago so I figured it was my blend door as well.

[@mateodominguez843]

Good job bro, that’s exactly what my problem was, thank you, it’s in the 90,s right now in Cali and my truck was stuck on heat, thanks again

[@aaronharvey1853]

Worked like a charm on my 2005 Chevy Suburban 2500 - thank you for the video!

[@JohnWilliams-ji9lz]

I have the same problem on my 2004 chevy tahoe lt 5.3l v8 and my ac has automatic controls. I just unplugged the switch to the same actuator and now it bios cold ac no problem now with heater so when it gets cold again I'll plug it back in for heater but its summer time. THANKS SO MUCH YOUR VIDEO WAS HELPFUL VERY MUCH

[@MsANDRESANA]

God blessed you I was looking for this long time and finally I came across something it’ll work thanks

[@piercecordier3044]

Worked like a charm, saved me 150 bucks, thank you !

[@davidshull8929]

My '08 does every now and then...driver side blows warm. I removed the three HVAC fuses from the fuse box under the hood. Started engine for few seconds, verified that HVAC had no power. Turned off engine. Waited a minute, put fuses back in. Started engine. HVAC reset to default of AUTO, Passenger mode on, and both sides set to 74. Normal function returned.

[@-glanma]

Thank you so much!! It worked!!! Blessings to you 🙏🏻👏🏻👏🏻👏🏻

[@larrymarvin2337]

BINGO!!! My 2005 Duramax 2500 was doing this at the lower duct area, just above the 'hump'. Blew cold air for a while, then hot air. I bought a "Air Door Actuator" OEM#89018365, from AA Ignition #GWA200. on Amazon for $29.99. With some persaverance, it will go in, just like the video. You must have the correct tools. Thanks for a instructive how to vid.

[@HookLineSinger]

Thanks. Good video/info. Would have been great with a little bit better camera work showing where the actuator actually goes.

[@USMotorHead]

Just worked for me! Thanks for posting. Take your time with tabs and they won't break.

[@michaeltuckerman6983]

I have the exact same problem I knew I would find the answer on KZbin you rock dude

[@John-wl8zd]

Dude thanks so easy to understand by the way you explained.

[@timcoppock9699]

Dude awesome thanks been dealing with this shit for a year easy fix

[@jerryplantbasedmonster2129]

Even after doing it one time you have to come back to the video when I do it again just to make sure I don't miss anything...and to be careful with the tabs not to break them🤣🤣👍👍

[@uwr74]

Great video. Just an update if you attempted to fix this by cleaning the contacts and it still fails... A replacement is $30, even at that price it's certainly worth it to clean the thing first and see if that fixes it.

[@clay1883]

Thanks for the help. I have owned Fords, Toyotas, Dodge and even an International ! But this Chevy is by far the worst truck I have ever owned. I keep thinking, well after I repair this or that then it'll all be good. Not so. Just waiting till something else craps out. Never again.

[@moss2844]

I have a 2002 Tahoe LT model and this actuator seem to work all the front vents, driver and passenger side. I have taken it off now but haven't had time to clean it up. Just put a small pair of vise grips on the door to operator it. With nothing on it it would bang back when going around a corner and start throwing hot air again. Well that would be great if it were cold weather all day long. We been getting up to 60's in afternoon and it's to hot for that full heat coming from front vents. so yeah I guess the fail mode is heater on that blend door.

[@robertgordon1686]

I lucked out big time. I was checking to see where the accuator was, and while the truck was running and blowing hot air, I tapped the accuator with the palm os my hand and presto, cold air started coming. Probably not permanent but probably dirty inside the actuator.

[@machia0705]

If all vents blow hot what can it be ?

[@jimdent351]

Was your fix a permanent solution, or did the problem come back? I have the exact same problem.

[@Ironman95246]

This was a fantastic video, I am going to unplug mine not that the A/C is currently working. U da" MAN! Quick question, why doesn't my fan work at all when I turn it to 5? It works on every position but 5.

[@Diy-jo8om]

You need to replace the resistor that plugs into the fan motor. Under the glove box.

[@monkeyman692000]

Thanks for the video. Fixed mine. Was a pain to get to seeing that I have the full center console.

[@Cgsmommy173]

Have the same problem but when I turn off my Tahoe and turn it back on it cool again ?

[@j1mmyv707]

Try shortening the run time to 45 seconds it worked for me. After I reinstalled fuse I turn on truck let run for around 45 seconds then turn off for 15 seconds then back on. I also tried the authors method for like ten times what worked could of been me trying ten times or shortening the run time to 45 seconds.

[@kaos600moto8]

Thank you so much I fix my problem thanks to your video I order my on amazon from ac delco original chevy parts only $49 thanks again

[@redbaron2448]

KAOS600 moto did you order the passenger side on Amazon

[@jerryrogers5233]

Thanks for the effort and info as well as great mucic on your radio!

[@wesjohnson5019]

What if my mode knob isn't working but all the other knobs and setting are working fine?? What could be the issue?

[@brodyhilyard5269]

thanks for helping me in 2022 😂

[@19522007]

Thanks dude! That solved my problem too

[@jeritolopez5516]

thanks for video. i have a question i have. chevy trail blazer whit. ac problems somtimes blow heat air and somtimes blow cold air du you tink you video and link hope me to fix the problem

[@Erikgmz]

Hi. I got the some exact Problem. On my 2004 GMC Yukon

[@GundamZero5]

Also if not that it's also ur control where u turn on if our both same time

[@redmophead]

just being curious is the actuator in the same spot on a 2004 chevy avalanche

[@ChiDraconis]

First try antioxidant on the connector then try just unplug it when it gets where you want ○ Gentle tapping on the drive housing while jiggling the wires then if that not works should be able to get it off with a quarter inch drive socket & squiggly wiggle u-joint they make for those then just set it manually a few times a year

[@mr.delacruz559]

Thanx for the info!

[@stephengaertner6025]

Automakers need to "RETHINK" how many people are having the same kind of issues with these same crappy parts in cars... This is ridiculous! Stay away from overhead cam motors in cars too! Unless you like bicycle chains in your motors. The chains are supposed to hold the all the extra parts together - but they don't last long enough!

[@seemac1979]

When it would switch over to HOT would the A/c light button on the dash start flashing ? Thanks for the great video

[@Diy-jo8om]

+seemac1979 never saw a/c light flashing. Thanks.

[@johnkurttate8978]

Couldn't you just disconnect the whole thing and be done with it??

[@Diy-jo8om]

Be a Good Person and Subscribe! Need to 1k subs so I can continue making videos on these trucks

[@Nic-xq1bt]

Oh shit $150!? I’ll either wait for another stimy or do the quick fix 👌🤣

[@2024jvlions]

I just got a bought the part from amazon for 35....hope it resets proper

[@Hugeroost]

05 suburban, I have a huge box thing in the way with cup holders etc do I have to pull that whole thing out as well, thanks

[@cresston]

You can get to it without pulling it but its not as easy as his truck still same setup.

[@juansolis9409]

can we go back to manual button connected to a rod, it was simple genius, why change something that woks?

[@jowymartinez4442]

how you do it in a 2002 corvette C5 can not find any video on this specific vehicle (2002 Corvette C5)

[@Matthew-oj2mq]

I had my actuator taken out and tried the manual way, but it kept flipping as I was driving

[@plainoldme7322]

Please show how to find that part under the dash

[@thecurbdog123]

Thank you so much, mechanic wanted to charge me 800$ i just unplugged that bullshit for free

[@baymonearl]

Good video, like your music too.

[@juanmoreno5187]

Anyone know why cold comes out from right side and hot from left side on a 04 Tahoe

[@datdirtysawf7138]

We're do my controls need to be when i do my reset?

[@164thscaleracing]

I'm sweating my ass off now mine use to do it only a little bit cut truck off and Crank it back and it was cold but now it goes right back to heat go going to fix it now

[@gfunkkowboy]

Thanks will try. Good job

[@jimdent351]

How long did this fix work?

[@Diy-jo8om]

Mine is still going strong! I have a few friends where the same thing happened and theirs are still working after a few years.

[@jamestomlin4705]

Thanks man

[@tumor480sm]

Having that same problem 2006 GMC Las Vegas Nevada the dealer fix the heater Fairway Chevrolet is the dealer 2489 dollars to fix the heater the air conditioner was working fine now they're both broke blowing air conditioner on the driver side heat on the right side had no idea what to do didn't want to go back to the same dealer I didn't want to go back to the dealer now is that video maybe I have a chance to fix it myself

[@bigjohncomedy]

I replaced the blend door but didn't reset it I'm gonna try it

[@if6turnedouttobe9]

Great video. Thank you...

[@daruisbryant7700]

The ac and heat of mines don't work at all everything else works but there's no air blowing

[@charlescwhiting7530]

Great job. Tnx so much. C

[@t.g.bconstruction2402]

how do I fix this problem , my ac fuse under hood keeps popping when I turn it on can anybody help me

[@kristipadgett8672]

I'd like to know the answer to this as well. My 2004 Chevy Silverado is doing the same thing. Started in early April with the blowing hot air. I would turn the truck off and back on and it would go away and not happen again for maybe a month or two. Now it's just blowing hot air and blowing the fuse! Its hotter than hell in NC - I need a fix folks!! Help!!!

[@Paradise4Nerds]

Use a bigger fuse for it.

[@chrisjoyce3777]

I tried it but ended up having to replace the actuator.

[@jennifersanders3258]

Thank you

[@DELLISTX]

WELL DONE....

[@riffraffchoppers]

well how the fuck did you fix the broke one you never showed us!!

[@chuckworld6289]

Actually it works both ways if you're in the cold it turns to heat if you're in the heat it turns to cold

[@spenceengland1915]

Appreciate the information but you could've said all this in three minutes. Why repeat yourself and ramble on?

[@johnsang989]

Thank You

[@jmo4026]

Thanks man