💡Answering A/C Questions Here💡 📌ruclips.net/video/WJ25yJyQjT4/видео.html 🛒Shop This Video: www.nthefastlane.com/ac-vents-chevy-trailblazer-store 🛒Find Any Leak: amzn.to/3JADlYm 🛒Download Auto Repair Manuals: shrsl.com/3wmrj 🛒Visit Nthefastlane's Amazon Store: amzn.to/3pP4UCy *NEW UPDATE INFO: IF YOU NOTICE A ROUGH IDLE or STALLING after performing this task, here's what you need to do. What has happened is, when you disconnected the battery, it reset the PCM, "power control module". More than likely, your throttlebody is really dirty and resetting it to factory defaults and the PCM picked up on it. What I would do is spray down the throttle body with throttle body cleaner. You can pick it up at your local auto parts store. Make sure you disconnect the battery when doing this. Afterwards, reconnect so it resets again. After that everything should run fine. Throttle body cleaner is in the link above. ☝️
We had the same problem, pulling the fuses, etc. did not cure it. But what did work was this; as a last resort, we pulled both battery cables off, touched them together (NOT TO THE BATTERY!) to discharge any residual electrical/capacitive fields in the system to ground. Both fuses were then pulled, the cables hooked back up to the battery, the car started, then both fuses reinstalled. Fixed the problem.
It did not worked for me, but by following the other video (2003 chevrolet trailblazer vent problem) that is 6 minutes long I was able to take care of it. Thank you for your video, it seems it worked for a lot of other people.
I did exactly what your video said . My AC was working fine but cooling my feet but running great! Now it stalls when I turn ac on. My check engine light went off but no AC! You failed to mention that it might cause more problems. Glad it some people but I live in Florida and ac is a must
Another person had the same issue, here's what you need to do. What has happened is, when you disconnected the battery, it reset the PCM, "power control module". More than likely, your throttlebody is really dirty and resetting it to factory defaults the PCM picked up on it. What I would do is spray down the throttle body with throttle body cleaner, you can pick it up at your local auto parts store. Make sure you disconnect the battery when doing this and afterwards reconnect so it resets again. After that everything should run fine.
Just finished following the video to the last word and it worked good as MONEY! Thank you SOOOOO MUCH! Follow up one week later: Once I started my vehicle to go out later the same problem existed from before. The actuator has gone bad but this did work. So if I didhave to replace a malfunctioning part this would be a great thing to do get it back online and working because it actually did work. It also let me know i had to just replace a bad part.
This works no doubt I've used this video for reset me 2002 Yukon xl I just unhook -- side of battery and pull my hvac fuses for 3 to 5 min and put everything back the way it was and all good thanks for this video
Need to say thanks man... didn’t know about that fuse block there.. couldn’t get any heat or defrost in the front.. found one of the HVAC fuses missing.. replaced and now have heat and control of what vent the air comes out
I have an Acender like trailblazer. I reset a fault code then tried to clear my oil maintenance light by turning the key withoutvstarting and pushing gas pedal to the floor 3x in 5 sec It also fixed my vent direction air?😅
@@juanvarela5513 😎 This cars do stupid things. I was driving and wasn't getting heat on a cold day. I thought my thermostat went bad. Upon checking, I had slid the temperature levers all the way down to cold! When I moved them back up, heat! 🤓
Mine has the opposite issue that it blows out of the forward vents and not the floor vents. I'm going to assume it's the same issue described in the video, just in reverse. I plan to try it this weekend. Thanks for the video.
I've disconnected my Trailblazer battery many times without any problems arising. The most likely cause of the problem you've described is failure of the mode door actuator. It costs about $20 and there are numerous videos describing how to replace it.
So those fuses you pointed out, Do you replace them with new ones before or after u reconnect the battery or u just pull them out and restart the engine? Get back with me ASAP PLZ
What about if you have automatic climate controls? When i reconnect everything back.. my controls go back into "auto" leave it at that for 2 minutes or quick shut it off?
this was exactly my problem...but now I don't have access at all...the fan wont even blow...I can put it on any number but you won't hear the fan anymore...any suggestions??? didn't have money so to be honest I kept it going that way for by the little air I did get,for the kids..probably not a good idea,but yea...so no AC at all anymore...
Ok so if your watching this video, you probably disconnected your battery for too long and now you don’t have air blowing in your face. (which really sucks when you live in the southern stares) you have probably tried all the fixes and suggestion available to fix this and you are tired of putting money in your trailblazer that seems to be held together with freaking Elmer’s glue. Well I can’t tell you how to make the dang thing recalibrate when nothing seems to be working but I did find a way to cool off without it. If you remove your headrest and turn on your backseat AC you can turn the vents located on the ceiling directly behind the front seats 180 degrees and it will blow nice cold air down your back. I wish I had read a comment like this a few weeks ago when I finally gave up on trying to recalibrate. Hope this comment helps someone to be more comfortable if they can’t fix it either.
I tried this a couple times on my girlfriends 2004 envoy, no luck. Maybe I didnt do it right ill keep trying. Ill tell you what does work sort of: I rammed a fish tape down the dash vents to open it and then you get air blasting out like it should. However once you restart the vehicle you have to do it again. So Im guessing the actuator works but the computer needs to be reset. Anyway I just left the fish tape rammed in there so my girlfriend has AC all the time. I guess ill try to reset the computer again some more. If I cant ill have her take it to the mechanic. This is a quick and dirty way to get cold AC out of your vents if you have a fish tape or something similar.
which front vent(s) did you ram it down? My gf's vehicle actually blows out the little side vents on each side that face the door and the back seat air works fine, this shit is possessed l guess lol
Do you think recalibrating will fix my passenger side it’s constantly chirping even when the hvac is off. It’ll shut off for a bit only when I press the recirculating button
I have to disconnect my battery to get the rpms down to 600 from 900-1000. I am going to leave mine on 50/50 face/feet setting so if it acts up hopefully I will still have some top vent.
Did exactly how you did it & said on the video but now the ac air just blowing on the bottom of my feet. I disconnected twice but still blowing air on the bottom by my feet, do you recommend just to take to the Chevy dealership to get it checked out?
it's the actuators that direct the air flow from dash vents to defrost. unfortunately this is a common problem with them. I have 2 ( 03 and 06 ) and I have this issue on both.
@@j.gabriel8573 I appreciate it for letting me know what is the issue and what parts need to be replaced so I can fix the problem and get my ac working rite again.
@@JuanGarcia-wy9ch The mechanic I usually have do that for me, says that is a common problem with them. It won't blow through the dash at all and just makes a rumble noise because the air has not been redirected to come out through the dash vents and it only comes out through the defroster and the bottom floor vents. This is something I'm got to do on both my '06 and '02 trailblazers
@@j.gabriel8573 your rite about it, that’s what’s exactly what it’s doing, just air blowing through the defrost and the bottom floor vents. How much does it usually ran you to get the actuators get replaced?
@@JuanGarcia-wy9ch it's been 2 or 3 yes ago when I had it done. There are 2 and the passenger side is the most expensive. I think I spent 1100 -1300, it was outrageous.
I disconnected the battery on my 2006 trlbzr. and it stopped blowing cold air.I did the battery the relay and fuse under the hood and the three fuses under the seat ,waited for 10 mnts and now is blowing cold air again.
I did exactly what you told me to do on a 2002 trailblazer and now my truck is running terrible. I don't know what it did or how that could have happened but it's not running right at all.
What has happened is, when you disconnected the battery, it reset the PCM, "power control module". More than likely, your throttlebody is really dirty and resetting it to factory defaults the PCM picked up in it. What I would do is spray down the throttle body with throttle body cleaner, you can pick it up at your local auto parts store. Make sure you disconnect the battery when doing this and afterwards reconnect so it resets again period after that everything should run fine.
Another person had the same issue, here's what you need to do. What has happened is, when you disconnected the battery, it reset the PCM, "power control module". More than likely, your throttlebody is really dirty and resetting it to factory defaults the PCM picked up on it. What I would do is spray down the throttle body with throttle body cleaner, you can pick it up at your local auto parts store. Make sure you disconnect the battery when doing this and afterwards reconnect so it resets again. After that everything should run fine.
Do you think next time you could use a bigger "battery wrench"? I could barely see what you had there & my local parts store doesn't carry that special tool. 🤣
What happens on my ‘05 Trailblazer is the vent works fine but on long trips the front vents close up. What guidance would you suggest? Replace the vent control module itself? Thanks in advance. I’ll try this in the meantime.
Whats the part called under steering dash above the gas pedal for the air conditioner i was told to change it cause it controls air to the vents i need the name of it. Can you please respond back to me . I hope you knowwhat im talking about Thank you plz respond back
The one you are talking about it the mode actuator. The one by the gas pedal. Well above the gas pedal behind the steering wheel. That controls the actual vents i believe
@@kevinkornman Think I just manually moved it open, & maybe disconnected the wire. Been a while. I'll watch the video & maybe it'll jog my memory. Good luck.
Saying if this doesn't work then you have to pay over a 100 bucks to get it reprogrammed is not necessary correct blender motor actuators go bad. They are located behind lower dash and cost about $20 to replace. But yeah sure take it to the dealer👍
2006 Montana SV6. Found HVAC blend door shaft broken Trying to remove all plastic parts under dash to get at broken plastic arm. Down to last few screws and tabs to remove it. I can’t find what is holding it in place. Anybody have diagrams for this area. Thanks
i have a 2004 isuzu ascender LS and my issue is the rear blower fan whenever i attempt to turn it on the fan either does not respond or it will turn on but shut back off shortly afterwards or less shortly afterwards but then i turn the switch off and back on again and the fan still will not turn on and also sometimes the rear vents wont let air out unless the front ac unit on (like the fan turns on whenever it feels like its good and ready) What can you explain to me so i can figure out what to fix?? :)
fargeeks Check where the power gets plugged into the fan, the female plug in the blower if removed actually has a resistor built into it that can go bad and cause these symptoms. If that doesn't fix it, then I would suggest the control until itself is bad.
Same fues if it's not blown. If it is blown put a new fuse with the same amps back in. The whole idea is you're trying to drain the constant power to the computer for a brief moment, it acts like a reset button.
hassan rakha Check all your fuses. Could have poped one reconnecting the battery cables. if that doesn't fix it then you might have to pull the actuator fuses,then turn the key "not" to start position but the (ON) position until you hear all the control stopping,that might reset the actuators.
hassan rakha Check all your fuses. Could have poped one reconnecting the battery cables. if that doesn't fix it then you might have to pull the actuator fuses,then turn the key "not" to start position but the (ON) position until you hear all the control stopping,that might reset the actuators.
That didn't work because it's not the problem. The problem is the foam sealer inside the blend doors when it decinigeates it let's the door go past the factory setting. I live in Florida so I only want AC so it's the middle actuator on drivers side up towards the windshield. I manually turned the actuator without removing it then left the wire harness plug off. Works fine 2 weeks later.
lo que pasa es que supuestamente al cortar o desconectar la batería la computadora recuerda el último parámetro de cómo estaba el selector del aire acondicionado, y ya solamente funciona nada más la ventilación hacia abajo o arriba, quién sabe sea cierto eso, la forma más fácil es probar él actuador del sistema de ventilación frontal, sí existe señal para él actuador cuando se le da vuelta al selector a la izquierda pero él actuador no funciona, Entonces es él actuador el problema, por el contrario si no hay corriente señal el problema es de otro lado
Very inaccurate. Most of what he said is dead wrong & misleading the people. And majority o f these GM issues aren't as simple to fix as reset!! I really love his large Crescent wrench on a tiny 5/16" battery bolt!!! He doesn't even know the names of the hvac outlets!!! Definitely not a Master tech or any tech. Worst video I have seen in yrs.
my 2006 chevy, trailblazer blows hot air in the rear after changing the two rear actuators. The front vent does not blow any air. All other vents work. Can anyone tell me whats going on?
Marva Samuel Make sure they installed the correct actuators. Some acuators are the correct part number but actually turn the wrong direction and leave the blend door open. I've personally had this happen.
I will tell u something tried this didn't work,I disconnected my negative post battery and my Front a/c stopped working,tried everything and nothing,found out the problem it was the blower motor resistor,as soon as I changed it booom started to work,its located under the passenger compartment,its probably like 30 bucks new,I got mine in the junkyard,for 5 bucks
So I tried this like you said...caused another issue. Now not only does the vent selection still not work...now my RPMs dip so low when the airs on it shuts off the engine. Tried it over again...and disconnected the battery again and still does it. Thanks for more issues. fuck!
Was the fuse put back in the same spot? If so, you could have a clog in the refrigerant line or a bad compressor. The Idle Air Control Solenoid could be acting up as well.
Troy Sisson Please help. Today is Thursday August 24 and I have just tried this fix and now I have the exact same symptoms that you had!! This sucks!! Please help. How did you fix yours??
Try at your own risk I'll see it worked for some people I tried it and now my envoy is running like s*** it has to go to modern Chevrolet to figure out what the problem is now I went from AC blowing only on the floor and defrost 2 idle problems and my envoy turning off when I turn on the AC it didn't work for me like I said at your own risk
Another person had the same issue, here's what you need to do. What has happened is, when you disconnected the battery, it reset the PCM, "power control module". More than likely, your throttlebody is really dirty and resetting it to factory defaults the PCM picked up on it. What I would do is spray down the throttle body with throttle body cleaner, you can pick it up at your local auto parts store. Make sure you disconnect the battery when doing this and afterwards reconnect so it resets again. After that everything should run fine.
💡Answering A/C Questions Here💡
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*NEW UPDATE INFO: IF YOU NOTICE A ROUGH IDLE or STALLING after performing this task, here's what you need to do.
What has happened is, when you disconnected the battery, it reset the PCM, "power control module".
More than likely, your throttlebody is really dirty and resetting it to factory defaults and the PCM picked up on it. What I would do is spray down the throttle body with throttle body cleaner. You can pick it up at your local auto parts store. Make sure you disconnect the battery when doing this. Afterwards, reconnect so it resets again. After that everything should run fine. Throttle body cleaner is in the link above. ☝️
Did you put the same fuses back in or do they need to be replaced?
Same Fuse
Make sure to grab the biggest crescent wrench you have to take of that 8mm neg cable.
Lmao I was about to say that a little bitty crescent wrench works better, don't take the chance at arcing against the positive terminal too 😅
LMAO! We have a certified Chevrolet mechanic here!
😂
We had the same problem, pulling the fuses, etc. did not cure it. But what did work was this; as a last resort, we pulled both battery cables off, touched them together (NOT TO THE BATTERY!) to discharge any residual electrical/capacitive fields in the system to ground. Both fuses were then pulled, the cables hooked back up to the battery, the car started, then both fuses reinstalled. Fixed the problem.
It did not worked for me, but by following the other video (2003 chevrolet trailblazer vent problem) that is 6 minutes long I was able to take care of it. Thank you for your video, it seems it worked for a lot of other people.
I wen to your location (2003chevrolet trailblazer vent proplem and there's a lot of videos which 1 you talking about
I just followed the steps in this video and it worked. 07 Envoy Denali with climate control. Thanks!!
AlWood25 Thank you for the feedback Al.
Thank you!! It worked. I removed battery and blend door kept clicking upon reconnection. This video fixed the issue!
Thanks for the feedback Keith.
I did exactly what your video said . My AC was working fine but cooling my feet but running great! Now it stalls when I turn ac on. My check engine light went off but no AC! You failed to mention that it might cause more problems. Glad it some people but I live in Florida and ac is a must
Another person had the same issue, here's what you need to do.
What has happened is, when you disconnected the battery, it reset the PCM, "power control module". More than likely, your throttlebody is really dirty and resetting it to factory defaults the PCM picked up on it. What I would do is spray down the throttle body with throttle body cleaner, you can pick it up at your local auto parts store. Make sure you disconnect the battery when doing this and afterwards reconnect so it resets again. After that everything should run fine.
I know this was two yrs ago but most likely the memory for the throttle body positon got erased,just clean your throttle body.
Just finished following the video to the last word and it worked good as MONEY!
Thank you SOOOOO MUCH!
Follow up one week later: Once I started my vehicle to go out later the same problem existed from before. The actuator has gone bad but this did work. So if I didhave to replace a malfunctioning part this would be a great thing to do get it back online and working because it actually did work. It also let me know i had to just replace a bad part.
This works no doubt I've used this video for reset me 2002 Yukon xl I just unhook -- side of battery and pull my hvac fuses for 3 to 5 min and put everything back the way it was and all good thanks for this video
Need to say thanks man... didn’t know about that fuse block there.. couldn’t get any heat or defrost in the front.. found one of the HVAC fuses missing.. replaced and now have heat and control of what vent the air comes out
I have an Acender like trailblazer. I reset a fault code then tried to clear my oil maintenance light by turning the key withoutvstarting and pushing gas pedal to the floor 3x in 5 sec It also fixed my vent direction air?😅
omg... this just worked for me.... same issue.
@@juanvarela5513 😎 This cars do stupid things. I was driving and wasn't getting heat on a cold day. I thought my thermostat went bad. Upon checking, I had slid the temperature levers all the way down to cold!
When I moved them back up, heat! 🤓
Worked on my trailblazer 2006 thank you
I tried and its worked in my GMC Envoy
this work for early 2000s yukons Tahoe's Silverados gmc I did and it worked
Thank you for the feedback Slab.
Mine has the opposite issue that it blows out of the forward vents and not the floor vents. I'm going to assume it's the same issue described in the video, just in reverse. I plan to try it this weekend. Thanks for the video.
No there is another part for down cooling
Didn’t work on my 2004 Trailblazer. Gonna try hitting up a dealership and hope they can reprogram the chip 🤞🏻
thank you, you saved me alot of money on my 03 tahoe . this really works, great video
I have an 04 envoy xl with the same problem. Gonna try it tomorrow. If it doesn't work I have to figure out which of the 3 actuators are bad.
Do I connect the battery back up while the fuses are pulled? Or put them back in and then connect the battery
At what point did you replace the fuses?
Trying it on my trailblazer rn... should mention in the video the downside if it doesn’t fix it.
hi; Thanks for the video and advice. It work for me on my 202 unit. yessss.
Worked for me! Thanks!
Nice! But you didn't even say how long to leave the fuses out for......do i pull them out and put right back in or wait a couple seconds/ minute?
I'd give it 60 seconds.
I've disconnected my Trailblazer battery many times without any problems arising. The most likely cause of the problem you've described is failure of the mode door actuator. It costs about $20 and there are numerous videos describing how to replace it.
So those fuses you pointed out, Do you replace them with new ones before or after u reconnect the battery or u just pull them out and restart the engine? Get back with me ASAP PLZ
Either way, you just want to clear any remaining voltage that would keep the ecu/control unit remembering last failed configuration.
What about if you have automatic climate controls? When i reconnect everything back.. my controls go back into "auto" leave it at that for 2 minutes or quick shut it off?
trying it now in 06 envoy. hope it works. thanks for the video.
Did it work on your envoy?
Gonna try mine tmrw
Can you please make a video of how to fix the cable that controls this vent selector? Mines is jammed up.
I have a 05. Will it work for a 05 TB?
this was exactly my problem...but now I don't have access at all...the fan wont even blow...I can put it on any number but you won't hear the fan anymore...any suggestions??? didn't have money so to be honest I kept it going that way for by the little air I did get,for the kids..probably not a good idea,but yea...so no AC at all anymore...
it's work in my chevy 2015 just i set the control in the front position disconnect the battery wait 2 min and work perfect thanks
Did you use the same fuses or new ones?
Ey I got a 2015 Chevy equinox and it won’t blow air from the from just bottom do u know how to fix that?
This worked on my 03 Trailblazer...you saved me money and time...thank you
Hi, did you buy new fuses or did you just put back the same ones you had already?
Do I reconnect the battery before I put the fuses back in?
Yes, reconnect the battery, and then put the fuses back in.
Ok so if your watching this video, you probably disconnected your battery for too long and now you don’t have air blowing in your face. (which really sucks when you live in the southern stares) you have probably tried all the fixes and suggestion available to fix this and you are tired of putting money in your trailblazer that seems to be held together with freaking Elmer’s glue. Well I can’t tell you how to make the dang thing recalibrate when nothing seems to be working but I did find a way to cool off without it. If you remove your headrest and turn on your backseat AC you can turn the vents located on the ceiling directly behind the front seats 180 degrees and it will blow nice cold air down your back. I wish I had read a comment like this a few weeks ago when I finally gave up on trying to recalibrate. Hope this comment helps someone to be more comfortable if they can’t fix it either.
So what is your advice for why my 2006 Chevy trailblazer won't go to 5 I can get one two three and four shuts off
Blower motor resistor
I have the same problem on my 97 f150 will this work on it ??
What was the relay when you said "This Big Guy right here" but was never mentioned again when reiterating which fuses?
Thanks worked for me, but I had to disconnect the ecu too thanks for posting.
had the same question for you, Do restart the engine without these fuses on?
I tried this a couple times on my girlfriends 2004 envoy, no luck. Maybe I didnt do it right ill keep trying. Ill tell you what does work sort of: I rammed a fish tape down the dash vents to open it and then you get air blasting out like it should. However once you restart the vehicle you have to do it again. So Im guessing the actuator works but the computer needs to be reset. Anyway I just left the fish tape rammed in there so my girlfriend has AC all the time. I guess ill try to reset the computer again some more. If I cant ill have her take it to the mechanic. This is a quick and dirty way to get cold AC out of your vents if you have a fish tape or something similar.
which front vent(s) did you ram it down? My gf's vehicle actually blows out the little side vents on each side that face the door and the back seat air works fine, this shit is possessed l guess lol
I have the same problem but on my envoy 2003, should it work the same?
The identical vehicle different name.
Do you think recalibrating will fix my passenger side it’s constantly chirping even when the hvac is off. It’ll shut off for a bit only when I press the recirculating button
Did you fix this. I have same issue. Mine sounds like the door is always moving.
@@tuco2421 it’s a hvac actuator the part itself is cheap the labor to install will be pricey unfortunately
I have to disconnect my battery to get the rpms down to 600 from 900-1000. I am going to leave mine on 50/50 face/feet setting so if it acts up hopefully I will still have some top vent.
pointless to ask questions I see they go unanswered
Did exactly how you did it & said on the video but now the ac air just blowing on the bottom of my feet. I disconnected twice but still blowing air on the bottom by my feet, do you recommend just to take to the Chevy dealership to get it checked out?
it's the actuators that direct the air flow from dash vents to defrost. unfortunately this is a common problem with them. I have 2 ( 03 and 06 ) and I have this issue on both.
@@j.gabriel8573 I appreciate it for letting me know what is the issue and what parts need to be replaced so I can fix the problem and get my ac working rite again.
@@JuanGarcia-wy9ch The mechanic I usually have do that for me, says that is a common problem with them. It won't blow through the dash at all and just makes a rumble noise because the air has not been redirected to come out through the dash vents and it only comes out through the defroster and the bottom floor vents.
This is something I'm got to do on both my '06 and '02 trailblazers
@@j.gabriel8573 your rite about it, that’s what’s exactly what it’s doing, just air blowing through the defrost and the bottom floor vents. How much does it usually ran you to get the actuators get replaced?
@@JuanGarcia-wy9ch it's been 2 or 3 yes ago when I had it done. There are 2 and the passenger side is the most expensive. I think I spent 1100 -1300, it was outrageous.
I disconnected the battery on my 2006 trlbzr. and it stopped blowing cold air.I did the battery the relay and fuse under the hood and the three fuses under the seat ,waited for 10 mnts and now is blowing cold air again.
What a FRICN expensive disaster just changing the battery!
Are you supposed to just take the fuses out and put them back in with the battery disconnected? Why would that help? please clarify
It disconnects any remaining voltage to the ecu memory.
what if my air only comes out the vents? i cant get to to go to dash or floor, will the above apply to my situation?
I did exactly what you told me to do on a 2002 trailblazer and now my truck is running terrible. I don't know what it did or how that could have happened but it's not running right at all.
What has happened is, when you disconnected the battery, it reset the PCM, "power control module". More than likely, your throttlebody is really dirty and resetting it to factory defaults the PCM picked up in it. What I would do is spray down the throttle body with throttle body cleaner, you can pick it up at your local auto parts store. Make sure you disconnect the battery when doing this and afterwards reconnect so it resets again period after that everything should run fine.
Clean the throttle body. Disconnect battery while doing do.
Please do everything they tell you on you tube, ( I'm going to try it my self LOL
How about the recirculation button? My recirculation doesn't work. I press the button, and I don't hear my fans get louder.
Made my shit start ticking trying to work but just ticking as soon as I turn the key. Thanks....
Another person had the same issue, here's what you need to do.
What has happened is, when you disconnected the battery, it reset the PCM, "power control module". More than likely, your throttlebody is really dirty and resetting it to factory defaults the PCM picked up on it. What I would do is spray down the throttle body with throttle body cleaner, you can pick it up at your local auto parts store. Make sure you disconnect the battery when doing this and afterwards reconnect so it resets again. After that everything should run fine.
It also wouldn't hurt to clean the mass air flow sensor with mass air flow cleaner spray. You can get it at your local auto parts store.
Do you think next time you could use a bigger "battery wrench"? I could barely see what you had there & my local parts store doesn't carry that special tool. 🤣
does this work for gmc envoy?
Yes, same basic vehicle. - take care
Do I let it run for 2 minutes with the ac off or sit for 2 minutes with the engine off thabks
What happens on my ‘05 Trailblazer is the vent works fine but on long trips the front vents close up. What guidance would you suggest? Replace the vent control module itself? Thanks in advance. I’ll try this in the meantime.
This worked. I had no power to the AC unit did with he told me to do and it worked
Whats the part called under steering dash above the gas pedal for the air conditioner i was told to change it cause it controls air to the vents i need the name of it. Can you please respond back to me . I hope you knowwhat im talking about
Thank you plz respond back
Actuator
The one you are talking about it the mode actuator. The one by the gas pedal. Well above the gas pedal behind the steering wheel. That controls the actual vents i believe
So my trailblazer blows cold air from the front and the back bottom vent but it doesn't blow from the ceiling vent, why??
Thanks for sharing, about to try on a 2006 Envoy. Is there a way to PREVENT this bs for future battery disconnects/swaps? Thanks again, take care.
did this work on your Envoy? A friend has the Envoy and it's doing what the video is about. Just wondering
@@kevinkornman Think I just manually moved it open, & maybe disconnected the wire. Been a while. I'll watch the video & maybe it'll jog my memory. Good luck.
Saying if this doesn't work then you have to pay over a 100 bucks to get it reprogrammed is not necessary correct blender motor actuators go bad. They are located behind lower dash and cost about $20 to replace. But yeah sure take it to the dealer👍
My trailblazer 2003 only throws cold air here and their then it turns hot why?
It actually worked thank you so much Brodie bless and love 💯❤🦾🦾💪💪👏👏
2006 Montana SV6. Found HVAC blend door shaft broken Trying to remove all plastic parts under dash to get at broken plastic arm. Down to last few screws and tabs to remove it. I can’t find what is holding it in place. Anybody have diagrams for this area. Thanks
2006 Chevy Trailblazer - followed exactly - for a while, did not start as if battery was not connected. DID NOT WORK.
Nice!
i have a 2004 isuzu ascender LS and my issue is the rear blower fan
whenever i attempt to turn it on the fan either does not respond or it will turn on but shut back off shortly afterwards or less shortly afterwards but then i turn the switch off and back on again and the fan still will not turn on
and also sometimes the rear vents wont let air out unless the front ac unit on
(like the fan turns on whenever it feels like its good and ready)
What can you explain to me so i can figure out what to fix??
:)
fargeeks Check where the power gets plugged into the fan, the female plug in the blower if removed actually has a resistor built into it that can go bad and cause these symptoms. If that doesn't fix it, then I would suggest the control until itself is bad.
is it the same with the a.c. and heat
William Van Vliet Yes
Did you put new fuses in or the same ones?
Same fues if it's not blown. If it is blown put a new fuse with the same amps back in. The whole idea is you're trying to drain the constant power to the computer for a brief moment, it acts like a reset button.
My remote staterd keep turning on the truck on once u plug in the battery
i have envoy 2007 after battery change 2left side vents not working but right two working ,any idea whats the problem
hassan rakha Check all your fuses. Could have poped one reconnecting the battery cables. if that doesn't fix it then you might have to pull the actuator fuses,then turn the key "not" to start position but the (ON) position until you hear all the control stopping,that might reset the actuators.
hassan rakha Check all your fuses. Could have poped one reconnecting the battery cables. if that doesn't fix it then you might have to pull the actuator fuses,then turn the key "not" to start position but the (ON) position until you hear all the control stopping,that might reset the actuators.
YOU MEAN ALL HVAC FUSES?
Nthefastlane
YOU MEAN ALL HVAC FUSES?
Did not work. Our shop laptop has GM software and showed the commands are ok, but blend door motor not working.
That didn't work because it's not the problem. The problem is the foam sealer inside the blend doors when it decinigeates it let's the door go past the factory setting. I live in Florida so I only want AC so it's the middle actuator on drivers side up towards the windshield. I manually turned the actuator without removing it then left the wire harness plug off. Works fine 2 weeks later.
muchas gracias ;)
Polo Luna te funciono? que hiciste tengo el mismo problema
Tengo el mismo problema en mi trailblazer 2006 y se ve que está bueno este vídeo pero no le entiendo alguien podrá traducirlo les agradecería
lo que pasa es que supuestamente al cortar o desconectar la batería la computadora recuerda el último parámetro de cómo estaba el selector del aire acondicionado, y ya solamente funciona nada más la ventilación hacia abajo o arriba, quién sabe sea cierto eso, la forma más fácil es probar él actuador del sistema de ventilación frontal, sí existe señal para él actuador cuando se le da vuelta al selector a la izquierda pero él actuador no funciona, Entonces es él actuador el problema, por el contrario si no hay corriente señal el problema es de otro lado
I did exactly every thing you said the problem was big bro I'm gonna this I think it's gonna effin work you da on mista Jones!
Did not work!! And your video is inconsistent.........
Very inaccurate. Most of what he said is dead wrong & misleading the people.
And majority o f these GM issues aren't as simple to fix as reset!! I really love his large Crescent wrench on a tiny 5/16" battery bolt!!! He doesn't even know the names of the hvac outlets!!! Definitely not a Master tech or any tech. Worst video I have seen in yrs.
I've tried this on both mine and my father's trailblazer and this didn't work
my 2006 chevy, trailblazer blows hot air in the rear after changing the two rear actuators. The front vent does not blow any air. All other vents work. Can anyone tell me whats going on?
Marva Samuel Make sure they installed the correct actuators. Some acuators are the correct part number but actually turn the wrong direction and leave the blend door open. I've personally had this happen.
How to start as c
im gonna try this bro geez
So what do you need to do when 1,2,3, is working but 4 & 5 aren't working...
Blower motor resistor. About 35 bucks O'Reillys
I respect the help but holy hell the size of that adjustable...
I will tell u something tried this didn't work,I disconnected my negative post battery and my Front a/c stopped working,tried everything and nothing,found out the problem it was the blower motor resistor,as soon as I changed it booom started to work,its located under the passenger compartment,its probably like 30 bucks new,I got mine in the junkyard,for 5 bucks
I'm going to attempt doing this recalibration myself and if not I will open her up. What pin pointed the problem to be the blower motor resistor?
Have a question my 04 trailblazer blows out of all my vents in the front
So I tried this like you said...caused another issue. Now not only does the vent selection still not work...now my RPMs dip so low when the airs on it shuts off the engine. Tried it over again...and disconnected the battery again and still does it. Thanks for more issues. fuck!
Was the fuse put back in the same spot? If so, you could have a clog in the refrigerant line or a bad compressor. The Idle Air Control Solenoid could be acting up as well.
Troy Sisson Please help. Today is Thursday August 24 and I have just tried this fix and now I have the exact same symptoms that you had!! This sucks!! Please help. How did you fix yours??
the defrost on my truck stays on even after the vehicle is off...what could be the issue??
Sounds like the a/c control unit is the problem.
Didn't work on my 07. 😢
Try at your own risk I'll see it worked for some people I tried it and now my envoy is running like s*** it has to go to modern Chevrolet to figure out what the problem is now I went from AC blowing only on the floor and defrost 2 idle problems and my envoy turning off when I turn on the AC it didn't work for me like I said at your own risk
Another person had the same issue, here's what you need to do.
What has happened is, when you disconnected the battery, it reset the PCM, "power control module". More than likely, your throttlebody is really dirty and resetting it to factory defaults the PCM picked up on it. What I would do is spray down the throttle body with throttle body cleaner, you can pick it up at your local auto parts store. Make sure you disconnect the battery when doing this and afterwards reconnect so it resets again. After that everything should run fine.
didn't work for me
is any one know how to change the vents manually
This makes me hate my trailblazer even more.
My 2004 Trailblazer doesn't believe you.
Ain't nobody got time fo dat! Jk 😂😂😂
So what happened and the and
didnt' even tell us if it worked on yours..... guess it didnt? haha
didn't work for me 😠😠😠
The shit don't work brother
It worked for my 07. Removed all 4 fuses, waited about 1 hour. After I installed fuses it worked.
BS
What a bs useless post.