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How to Change Chevy Trailblazer Heater A/C Blower Motor Fan Speed Resistor When Not Working
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- เผยแพร่เมื่อ 12 ส.ค. 2018
- Replacing a blower motor resistor on a 2005 Chevy Trailblazer.
Symptoms include heater fan only working on one or a few fan speeds, or not at all.
The procedure shown in this video should also apply or be similar in the following vehicles :
2002-2009 GMC Envoy, Envoy XL, and Envoy XUV
2002-2009 Chevrolet TrailBlazer and TrailBlazer EXT
2002-2004 Oldsmobile Bravada
2004-2007 Buick Rainier
2003-2008 Isuzu Ascender
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Thanks this exactly what I needed to fix my wife's trailblazer
Thank you for this video. I replaced my resistor assembly today and it went pretty easy due to your instructions.
Worked like a charm and I got my mom’s a/c working again. Thank you!
Thank you for this video, just did mine after watching how easy you showed it is to do!! 🤙🏻
BRAVO!
Remember the days of a cable to a damper that mixed the air ...with the heat or the cold??? I DO. Simple Simple Simple!
"Thanks for taking the time to do this video! I appreciate that you had the perfect amount of detail. Saved me a ton of money."
that's a quote but it's the way I feel.
glad it helped, thanks for watching and commenting!
Thanks for taking the time to do this video! I appreciate that you had the perfect amount of detail. Saved me a ton of money.
Your welcome, thank you for watching and commenting!
Thank you. Very helpful. Blower worked 1-4 but not on 5, then went out completely. From what you showed it looked like the same problem. Very easy as long as you have proper tools. The hardest thing was the old style clip I ended just ripping apart. LoL. Thanks again.
Those clips get so brittle with age, thanks for watching and commenting!
Great video man going to use your vid to change mine this weekend it's funny that cord was all melted because I had just turned my air conditioning on and I started smelling like melting wires and that all of a sudden the blower wouldn't work anymore so this video made perfect sense to what I was smelling in the car before it completely broke I'll let you know how it works out
I didn't know about that resitor, I was just going to change the motor, thank you I will check that resistor.
Good job. I was able to get in and get out. Only issues I had was the plastic connectors. Also the the “RESISTOR BOLTS” was 5.5 mm for me. I was lucky enough to have it in my set. Thanks !!!
Those connectors are a pain. Interesting about the 5.5mm at least you had one. Thank you for watching and commenting!
Great video, thanks for sharing. Laffin out loud here about the "crap" in and out of the glovebox. Cheers Man. M.
Thanks for the video. Just replaced mine here in Hawaii. Works great now.
Thanks for the video, It was real easy to do...
took me probably 20 minutes and the new one I got off Amazon for $24 works perfect.. and thank goodness I didn't need the wire harness that came with it because my existing one was perfect, but I think it's awesome that my new one came with the wire harness.. (even though I didn't need it) so I didn't have to do what you said which would be maybe going to a junkyard and all that crap!! 😃
Hey just wanted to say thanks for posting this video I got an 06 that this video helped me out a lot man I appreciate it Good work
This was great! I have the fan working, now if I can trace down where the refrigerant is leaking from, I'll be in great shape.
Thanks much for this video. Worked fine for my 2008 Trailblazer just now. It was still working on high but now working fine on all speeds again.
happy to hear its working as it should now. thanks for watching and commenting!
Mine works on all the lower speeds but not the hi speed. Would it still be the BM resistor?
@@Hugh_Manitee I couldn't say for certain but it may be worth a try. It's not really a difficult job, just time consuming taking everything off and then putting it all back together when it's been changed.
Lol...thanks for this video..I thought that you were in my trailblazer..I my dash is the same color and I have the same JVC radio and my heater went out like that to..Now I’m about to fix mines..Thanks again 👍🏽
That's crazy that it's so identical, good luck with the project and thanks for watching and commenting!
Thank you so much for posting this video! It helped me replace my resistor in my 2007 Trailblazer. I had lost 1 speed (4) 2 years ago and another (5) in the fall. I then lost the remaining three last week. I now have all 5 speeds! Thank you again! Todd
It sucks not having all speeds for sure, I still gotta do the one in my jeep, I only have high speed at the moment. Glad the video helped and thank you for watching and commenting!
Thanks for the video. Helped me out 100%.
"6mm had a long night out"
"You probably have crap, I have crap, everybody has crap"
Love car videos with little jokes like these. Thanks for the help!
Your welcome, thanks for watching and commenting!
This definitely will help me.. you make it look easy. Seems simple enough
I hope helps, thanks for watching and commenting!
Thank you bro it was definitely the connector piece on the blower motor yellow one
Awesome video, just replaced mine. Very helpful and right to the point. Thank you for the help, made my day.
Your welcome, glad to hear ii helped, thank you for watching and commenting!
@@E4EonEbay hey so if u said it stopped working. Did the back vents work when the front stopped?. Mine doesn’t blow thru the front but it still blows thru the rear vents .
Best video on doing this job, thank you, I haven't replaced mine yet but I will use your video!
Thanks man, I hope it helps when it comes time, good luck with the job and thanks for watching and commenting!
Thank you, so much ! You saved us a ton of money ! Very well made video -
I'm glad it helped, thank you for the kind words!
Just this January I was warming up my 2006 Envoy in my driveway and my truck caught fire because of that resister. I even had it replaced twice. GM should recall these things.
Good job man! Helped me out.
Outstanding super easy fix thank for the tutorial
Yes, video was awesome thank you, now I'm going to go fix my blower
Great video, replaced the one my 06 trailblazer, again thanks 🍻😎
You're the man! Thank you!
nice job thanks my number 4 selection just went out grr
Thank you. Very helpful.
Great video! Thanks!
Thanks man!! It worked like a charm 👍
Glad to hear it helped, thanks for watching and commenting!
Gonna try this tomorrow ty
Nice video! Thank you
Is there a fuse on the AC control module? Mine works perfect sometimes, and sometimes it won’t work at all and just blows out hot air.
Thanks for the video I just saved my self $500
Awesome! That's a ton of $ to save
Wow very good vedio thank YOU
Very helpful thanks
Thanks good video
Hey could you feel the cold air ? In the vents ..cause I can just not blowing ...so blower or resistor
I changed my resistor and it fixed my problem with the speed settings but the plug was burnt so I ordered a plug and spliced in the new plug and now my vent controls are messed up.i double and triple check the wiring is correct.any thoughts?
Doing this job tmrw...thanks!
I hope it helped solve your issue. Thanks for watching and commenting!
@@E4EonEbay Yes, job went smoothly! TY
Great video!
Thanks!
Very good video
Do you know what would cause the blower motor to run all the time? Even when the trailblazer is off and key is out. Any help would be appreciated. Thanks
So if you change the resistor and doesn't fix it.. also the blower fuse fuse is blown and keeps blowing would it be the blower fan?
It helped. Thanks!
Happy to hear it helped, thanks for watching and commenting!
Thanks helped alot. 1 question WHAT IS THAT PLUG FOR THAT IS NOT CONNECTED WITH THE YELLOW ONE
Overhead console with dvd I think?
I just put a heater blower motor in my 2007 Chevy trailblazer but it still won't turn on could it be that blower resistor please let me know thank you
Imma try it today during my lunch brake. I had my 5 speed working only and now it just gave out.
How did you get this black and red cable out with the orange clip?
It is not working with me
Can you do me the favor of sending me the link where you bought the screen
Hi, great video! My parents traileblazer has stopped.working on thw 5th speed. I think this is the culpret just in beginning stages of malfunction, is that wire hsrness that goes to tbe blower motor from the resistor ziptied to the blower motor.itself? That was the only thing in your video that i have a question about, thanks! I gave you a like btw!!
Sounds like the resistor is starting to fail if not working on all speeds. There are two 6mm nuts that hold the resistor into the fan motor housing, you can see at 3:10 in the video. Thanks for watching and commenting!
I have the same issue. But it only works in max speed. And i have another issue. Like when you control the a/c. Like where you gonna blow it. Up down rear or back only. Is not working in that control. Thing.
Now I know what my pop and wire burning and ac going out noise was good shit
Yes this helps sooo Awesome! Does this resistor work on AUTOMATIC Heat/AC?
As my daughters trailblazer only has the manual type heater controls unfortunately I am not certain that the auto climate control unit works on the same type resistor. Thank you for watching and commenting!
There are two different reisistor parts for manual (like mine) and auto. Just ask your parts store for the different kinds. Mine cost about $32 and the auto one goes for about $48.
Mine doesn't work at all. Is there a fuse also that makes it not work
Thanks for the video and tips..
On my 2005 TB, my fan works on 1-3, but nothing on 4+...
How do I know if its that resister gadget you show or the switch on the dash???
At 1st I was a 100% sure it was the switch, but after seeing your vid, im not sure...
Thanks again for the vid and any additional advice.
More than likely it's the resistor, I'd bet some money on it.
@@E4EonEbay
Ok man, ima order one... Between rain, my two jobs and other shit the wife comes at me with it'll likley be a few weeks before I can throw down on it....
Thanks!
All of my blower speeds went out completely then I replaced the resistor (mine was all melted as well) but it didn’t fix it any ideas??? Please get back to me ASAP thanks 😊
Thanks man.
Your welcome, thanks for watching and commenting!
Hey on my panel, speed 3 and 4 work, resistor? Excellent video
Most likely yes
I thought that power bypassed the blower motor resistor and went straight to the blower motor itself on the 5 speed, so I’m surprised that replacing that resistor solved the issue.
I had my fingers crossed that it was the resistor and not the motor itself, but I think because the resistor was so bad that it just stopped all together.
Thanks
check cabin filters as well
I got a 06 envoy I have no ac or heat was working before spring hit and then it stopped randomly. Would it be the resistor?
And every time I turn on the heat or ac it makes a clicking sound depending on what setting I have it on
big help but it is a 7/32nd socket thank you.
So my question is.... since GM don't protect the wiring or use the best quality in the first place to prevent this from happening, is there anything that can be done to protect the new thingy you put in from heat, ect to prevent this from happening again?
Unfortunately I know of nothing off hand that could be used, but it's a great question and hopefully someone else can chime in if they have any ideas. Thank you for watching and commenting!
Any idea on why mine stopped working while I was driving. The rear works tho just not the front
They are prone to failure, poor design by GM in my opinion
Easy job but the wire on my resistor wasn't long enough so I made it work.
Hey i replaced this part and it now will blow on all levels but the ac is not cold ? Any idea
Blend door actuator? Perhaps try the recalibrate procedure for the HVAC, there are a few vids online, often times the system neeeds to recalibrate itself after the battery has been disconnected. Thanks for watching and commenting
Mine melted in the g connection in my Silverado now I can’t get it to work any help
Buy a blower motor resistor kit. Comes with a harness you have to splice in.
Yep, helped. 👍
Word of advice. Replace the blower motor and the resistor at the same time.
I have full power f/ blower on ac on setting 5 but when I slide to heat I get low blowing power. Please advise
Does the low blowing power when heat is selected remain low on each of the air sections ( defrost, front vents, floor) or does it blow harder in one of those sections?
Update I removed all the fuses for the HVAC system (2 under hood & 4 under passenger seat behind driver) started vehicle ran for 2 minutes turned off reinstalled fuses started vehicle again let run without touching controls for a few minutes. Presto problem solved.
Mines just blow cool out tha bottom vents how do I get it to blow out of both
There is an mode door actuator that controls the section where the air comes out of. If you search for Trailblazer HVAC actuator or HVAC mode you should pull up information on how to fix that issue, Thank you for watching and commenting!
Any tricks to getting that 2nd clip out?
are you talking about the one that I ended up having to mangle to get unstuck?
Thanks man but yet I still have a problem with getting my A/C Heater working Out new climate control module ,the resistor and the blower. It came on for about six seconds and went dead. I can not get it to work.
What else do I need to check thanks
Did the new setup pop a fuse?
By the way, I never found a 6mm that fit those screws either. I end up using pliers.
5.5mm socket is the correct socket or 7/32
Can this video be use in my GMC ENVOY ?
Most likely will be the same, thanks for watching and commenting!
Steve Young thank Steve great info
Thats why you buy the new plug and solder the connections
Those screws for the resistor are 5.5mm
The problem with my trailblazer is that it does not change the air on the front panel, only at the feet and the windshield. What do you think the problem is. Thank you
The size of sockets are not 6mm and 7mm. You need a 7/32 and 9/32 SAE socket.
I managed to remove it without messing with the glove box.
My tb today stop the blower and there is nothing happening with the speed
So im checking in ebay the resistor so i can change it
Where i can find the resistor
💪💪💪💪💪👌👍
Good video, but you shouldn't need to take glove box out to get the lower panel off.
But either way clean the crap out of you glove box.
My daughters car, her crap, not mine 😁. Thanks for watching and commenting!
so sad how this trailblazer is mistreated.
Klink bat
No need Don't need to take glovebox off
Sorry but the way theu drive here that woukd be kaos. I gorsee cash many accidents cuz there waychin the phone n hands arent on the wheel
It’s actually a 5.5mm socket
Crappy
Yes, GM has become crappy over the years...
Thanks a lot for upload this video the mecanic charges me 250 dolars for put this part
My chevy trail blazer stay turned on when i remove the keys i wento with a mechanic he charge me 250 dollars today im feeling so stupid so thanks next time iwill change by myself
It's ok, we all live and learn, I can't believe he charged $250 though that's crazy