And 3 years later I have to say it again, THANK YOU for this no bullshit video. I hate it when people go pet their dog, go get the mail or just start talking about random bullshit. I really appreciate it.
Thank you Very much! This happened to me when I got to work today. I work 10 hour day's. So I pulled the fuse for a quick fix. But will be doing this in the morning. Quick & to the point. I will be checking out more of your videos. Yes I am a lady that works on her own Envoy 2005 8 cylinder 4 wheel drive. God Bless you! Keep making videos Please!!!!
Awesome to hear you're taking care of things yourself Rita! Thanks for the lovely comment and good luck on the repair! I greatly appreciate the support
Awesome video. Love that its straight to the point and no b.s. just happened to my 2007 Trailblazer SS right now. I pulled the fuse under the hood to stop it for time being. Thank you for taking the time to make this video. A huge help.
Thank you so much I almost never Comment or like or sub to anyone or anything on CZcams but you saved my car in middle of night with -30 degrees holy shit now tomorow I’ll take it for repair at least now the fan is not going to run all night omg thank you
So happy to hear the video helped you get out of a jam. Really appreciate you dropping a comment to. Thank you. also It's not a bad repair if you decide to tackle it yourself.
Great video - Fast and to the point. More helpful than the ~stupid~ owners manual. I pulled EVERY fuse (5) in both boxes & 2 relays that had ANYTHING to do with Fan, HVAC, & no go. This AT LEAST gave me a workaround.
Ffs. Its the resistor module.. AGAIN. Leave it up to chevy to create a complete piece! Back to the scrap yard tomorrow.. because guess what, its a discontinued part when you have auto climate controls. F*ck.
Thank you so much. 5 minutes and the fan was stopped. It's below zero where I am and a dead battery would be pretty uncomfortable. I'll check the voltages once I get to my tools. Saved me a bunch if time, money, and frost bite!
THANKS FOR THE ADVICE. YOU WERE 💯% RIGHT.... MY 2005 GMC YUKON XL DENALI WAS DOING THE EXACT SAME THING. THE PART WAS $110.00 FROM AUTOZONE BUT THAT EXACTLY FIXED IT IMMEDIATELY. IT TOOK ABOUT 10 MINUTES TO DO EVERYTHING FROM START TO FINISH. THANKS BRO! I HAD 7 MECHANICS LOOK AT MY TRK AND THEY COULDN'T FIGURE IT OUT BUT THEY WANTED TO CHARGE ME A HELL OF A LOT MORE THAN $110.00. I'M A FAN NOW👍😁😁😁😁😁😁😁😁😁😁😁😁😁😁
Not posting this everywhere, but possible fix. Hummer with automatic temp control, blower motor staying on after key turned off. Passed wire voltage testing. Had to buy the "upgraded" fan resistor.... Cut and installed the new style plug that fits the new module. Works!
Very efficient use of video time. I appreciate that. Long-winded explanations and inclusions of personal experiences before solutions in such videos are often frustrating. When I'm looking for a video like this, it's usually a matter of relative urgency. I appreciate your balance between brevity and comprehensive explanation.
NoNonsenseKnowHow thanks for the info! So mine was doing this but now it doesn't blow air at all anymore. Would this still fix my issue or did I do more damage at this point?
Thanks for vid. Fyi when people measure the purple from red youll see the voltage fluctuate. That lets you know the pulsed width modulation is working coming from the climate controller, therefore its your blower resistor module like he said in the video.
Thanks for this. Mine was fluctuating and not at 0 (just near it). When I increased the fan speed on the controller to max, the voltage was over 12V between these 2 wires, which made me think climate controller was doing what it was supposed to do. I'm going to buy the resistor module, fingers crossed that totally fixes it.
I just replaced the resistor on my 2004 Buick Rainier, with the climate control system. I worked perfectly for one day. I’m not going to spend anymore money on it. I will just use a 40amp fuse and a 40amp switch to straight wire the fan to FULL ON. All this technology is great if you got loads of money to keep it going. But, honestly, old school is the best.
this is a life saver, so now i know what to look for and where to check, i was going to replace both the dash control and the resistor, i still have to check the fan though, just to make sure that its not burned out
"Short and to the point"! Easy watch and informative! I have a 2003 Acura CL and my fan stays on only when the key is on the "on" position. I was thinking fan and relays but didn't know to check here. I'm new to electrical so if you think you know the issue, please lmk. Otherwise I'll just rewatch this awesome video a few times to understand. Thanks in advance!
Glad the video was helpful and I appreciate the feedback man. It's hard to give you an opinion without seeing the vehicle. A good place to start would be getting a wire diagram for your particular car. That will really help you narrow down which components could be bad. Good luck on it and let me know how you make out. My first thought would be a bad control head if it has Auto climate
Thank you! I can work with this! I was afraid I would need to disconnect the battery every time I shut it off! Reaching under to connect/disconnect the plug is so much easier/ faster. Really didn't wanna wake up to a dead battery. It's a temporary sort-of-fix until I have the time/funds to fix it completely. But I can still defrost and my battery won't get drained. Good enough for now!
I’m glad I seen your video...I was about to tell my mom to send her GMC” To the dealership” they wanted $90 dollar...just to look at it. Her HVAC Module resister....only needed two screws to remove....I was able to tell they replaced it” because it had yellow junkyard markings....to make a long story short....they installed the wrong one and was installed backwards” water from the dash unit....got into the module. Thanks for the video....saved my mom money.
Thank you, liked the video. Will do the test in the morning, hopefully my battery will be charged up. I didn't have time before I had to be at work to pull the fuse, so came home to a drained battery
Thanks for the help, I treid to change mine . Got new one at NAPA. Didn't work. I went to my fav shop McDonalds Auto Repair Hebron Ohio and it was the small black relay that is next to it on Chevy S10 2000. LOL the last shop that looked at it gave me a 2 hr estimate to look in the dash LOL.
No problem. Sorry to hear you had some troubles with it. Great that you have a reputable shop you can go to. It's hard to find decent mechanics these days that work for a decent rates
Thank you, thank you, thank you!!! I have a 2007 Trailblazer, and this bizarro air blowing thing just started today...I watched your video and was able to get in to the control module (I didn't even need to pop the wires off) and get in and unplug the blower control! that's as far as I feel comfortable going (not sure if I know how to check the whole voltage thing you talk about) but at least it's not blowing any more!
NOTE: There are two styles of resister part - One for heating systems with automatic controls (as in this tutorial) and one for the models with manual controls. They are not interchangeable. And the prices are WAY different - $35 vs $105. Text lookup under "Blower Motor Resistor" at your local auto parts store but make sure you get the right one for your type of heating system. Also, this video doesn't show the re-assembly, which is not straight forward. None of the current replacement parts are a plug-and-play replacement - they all needed some splicing. Instead of a built in pig-tail plug to the fan and a female plug for the control console wire plug, (with the thin purple line) my replacement unit had a 5-line female plug on the body and came with a snap-on pig tail that had the 2-line connector to the fan, and 3 bare wires (red, black, and purple) that I had to splice onto the existing 3-wire line from the control console. I used quick splice connectors - the thick wires used the blue size, and the purple used a red size. A PITA when working under the dash with the door open on a cold winter afternoon, but not all that difficult. Never-the-less, once all wired up, it solved the problem. Thanks for the video NNKH!
Good im gonna try this my 2004 gmc envoy did it 2 day wen my suv was off u can hear the blower still running wen I pulled my ground wire 2 my battery it turned off an wen I put my ground wire back on the battery the blower came back on
Glad you're still doing videos. This one helped my brother out. Thanks a million. Subscribed to your channel for support. Keep up the great contents. 👐🤘
@@zilla5142 awesome to hear. And yeah man for sure. I appreciate you updating me as well. Consider checking out one of my other videos if you want to help support the channel. Thanks!!!
So I got a 2000 blazer LT with this issue I've already replaced the blower module it still stays on. Is there a video on how to test the climate control module? Nice strait too the point video I do like that didn't know how much I'd like nit until I seen yours.
Ok did it !!! Blower fan now unplugged But!!! I discovered that if you unplug both ends my engine fan also shut down so thanks for that and you need to change it out to get power to both fan and blower
Great video and it helped me diagnose the fan control module was faulty....but my problem came back a week later. Blower doesn't turn off when key is removed. Could I have gotten a bad module or did something else likely cause it to fail again???
This was hands down the best repair video I have ever watched. No bs just accurate facts and directions.
And 3 years later I have to say it again, THANK YOU for this no bullshit video. I hate it when people go pet their dog, go get the mail or just start talking about random bullshit. I really appreciate it.
Thanks for not making it more difficult than it needed to be. Quick and to the point.
Mad props to holding a phone while doing everything with basically one hand
Finally !!!
This is the definition of tutorial.
Even a mechanically incompetent chimp like me could fix this problem thanks to your video. I appreciate you doing this greatly.
I needed the info for diagnosing between a bad hvac unit in dash or bad blower motor control module. This made it easy, thanks!
Liked and Subscribed!!!
100% to the point no BS and even mentioned the socket sizes.
And a bit of info on the PWM too.
Just saved me a headache. Fixed my problem in about 5 min after watching this quick video. Thx
by far one of the best auto repair video on youtube great job...... straight to point.
This video was exactly what I needed to see, I watched a couple others that were horrible. Thanks man, I need to do this on my 05 GMC Sierra 🇺🇲
Thank you Very much! This happened to me when I got to work today. I work 10 hour day's. So I pulled the fuse for a quick fix. But will be doing this in the morning. Quick & to the point. I will be checking out more of your videos. Yes I am a lady that works on her own Envoy 2005 8 cylinder 4 wheel drive. God Bless you! Keep making videos Please!!!!
Awesome to hear you're taking care of things yourself Rita! Thanks for the lovely comment and good luck on the repair! I greatly appreciate the support
Thank you for this video saved me a lot of searching for what was wrong absolutely awesome
Awesome video. Love that its straight to the point and no b.s. just happened to my 2007 Trailblazer SS right now. I pulled the fuse under the hood to stop it for time being. Thank you for taking the time to make this video. A huge help.
I just need to figure out which fuse it is
Fuse 34
Thank you so much I almost never
Comment or like or sub to anyone or anything on CZcams but you saved my car in middle of night with -30 degrees holy shit now tomorow I’ll take it for repair at least now the fan is not going to run all night omg thank you
So happy to hear the video helped you get out of a jam. Really appreciate you dropping a comment to. Thank you. also It's not a bad repair if you decide to tackle it yourself.
That was my problem, took Tahoe to a car wash and had a bad seal and water got all over it, thanks for the video.
No prob! Glad it helped out
Hi, same thing is happening to my Chevy suburban. I can’t drive my truck after a rain storm or car wash. What seal did you replace?
Great video - Fast and to the point. More helpful than the ~stupid~ owners manual. I pulled EVERY fuse (5) in both boxes & 2 relays that had ANYTHING to do with Fan, HVAC, & no go. This AT LEAST gave me a workaround.
2 years later and it worked for me. Bumped my head in the process and now I have a knot but the air shut off. So thanks so much for this video.
Literally watching this as my vehicle just started doing this.
Ffs. Its the resistor module.. AGAIN. Leave it up to chevy to create a complete piece! Back to the scrap yard tomorrow.. because guess what, its a discontinued part when you have auto climate controls. F*ck.
And don't get me started on the fan clutch. .
Do not watch final destination
Same ….
Thank you so much. 5 minutes and the fan was stopped. It's below zero where I am and a dead battery would be pretty uncomfortable. I'll check the voltages once I get to my tools. Saved me a bunch if time, money, and frost bite!
No problem! Glad you found the video helpful
THANKS FOR THE ADVICE. YOU WERE 💯% RIGHT.... MY 2005 GMC YUKON XL DENALI WAS DOING THE EXACT SAME THING. THE PART WAS $110.00 FROM AUTOZONE BUT THAT EXACTLY FIXED IT IMMEDIATELY. IT TOOK ABOUT 10 MINUTES TO DO EVERYTHING FROM START TO FINISH. THANKS BRO! I HAD 7 MECHANICS LOOK AT MY TRK AND THEY COULDN'T FIGURE IT OUT BUT THEY WANTED TO CHARGE ME A HELL OF A LOT MORE THAN $110.00. I'M A FAN NOW👍😁😁😁😁😁😁😁😁😁😁😁😁😁😁
Not posting this everywhere, but possible fix. Hummer with automatic temp control, blower motor staying on after key turned off. Passed wire voltage testing. Had to buy the "upgraded" fan resistor.... Cut and installed the new style plug that fits the new module. Works!
Very efficient use of video time. I appreciate that. Long-winded explanations and inclusions of personal experiences before solutions in such videos are often frustrating. When I'm looking for a video like this, it's usually a matter of relative urgency. I appreciate your balance between brevity and comprehensive explanation.
I appreciate your comment very much, that's exactly what I shoot for on 90% of my videos. Glad the video helped out.
thanks dude, my trailblazer had this issue, watched your video diagnosed the issue and replaced it for $60, have full control now. :)
On Amazon:
*BLOWER MODULE: amzn.to/3awI8q8
NoNonsenseKnowHow The Amazon link doesn’t allow 2006 Trail Blazers or newer. Will a 2005 work?
NoNonsenseKnowHow thanks for the info! So mine was doing this but now it doesn't blow air at all anymore. Would this still fix my issue or did I do more damage at this point?
Hi, thanks for the great video! My boyfriend replaced both parts and the fan is fixed, but now the A/C only blows hot. Any ideas?
The passenger side only.
Thanks for vid. Fyi when people measure the purple from red youll see the voltage fluctuate. That lets you know the pulsed width modulation is working coming from the climate controller, therefore its your blower resistor module like he said in the video.
Thanks for this. Mine was fluctuating and not at 0 (just near it). When I increased the fan speed on the controller to max, the voltage was over 12V between these 2 wires, which made me think climate controller was doing what it was supposed to do. I'm going to buy the resistor module, fingers crossed that totally fixes it.
Thanks , I will check my truck tomorrow. Love the no BS video.
Perfect! Worked on my 04 Duramax! Short and quick. To the point. Diagnosed in less than 10 minutes. Thank you!
Thanks for the video! I ended up making a video when I fixed my 2004 GMC Yukon Denali XL
Your video saved me so much money by doing this myself. Thank you! 3:22
Um this literally just started happening...going home to check it out. Thanks to a great step dad I know a few things. Thanks for this video
When my blower motor got wouldn’t turn off
I found the blower 40 amp fuse under the hood,
When removed it stoped,great video,
Badass video. Love the no BS straight to the point 👌
My 2003 Bravada has this exact problem. Thanks for the fix.
I just replaced the resistor on my 2004 Buick Rainier, with the climate control system.
I worked perfectly for one day.
I’m not going to spend anymore money on it.
I will just use a 40amp fuse and a 40amp switch to straight wire the fan to FULL ON.
All this technology is great if you got loads of money to keep it going.
But, honestly, old school is the best.
Thank you for this video mine just started doing that today , when I did a web search your video was the first to pop up
this is a life saver, so now i know what to look for and where to check, i was going to replace both the dash control and the resistor, i still have to check the fan though, just to make sure that its not burned out
Thank you I had no idea wth was going on with my ac this helped alot
Perfect I have the exact situation you explained it to a T. I figured it was the fan module.
I want to thank you a bunch followed your steps and fixed tge issue for 100$ compared to who knows what at a shop. Great job
Bryan H no problem and I'm glad it helped you out!
Great video! Wish I found this video instead of the other one I was following.
1st video that tells me how to troubleshoot. Thank you!
"Short and to the point"! Easy watch and informative! I have a 2003 Acura CL and my fan stays on only when the key is on the "on" position. I was thinking fan and relays but didn't know to check here. I'm new to electrical so if you think you know the issue, please lmk. Otherwise I'll just rewatch this awesome video a few times to understand. Thanks in advance!
Glad the video was helpful and I appreciate the feedback man. It's hard to give you an opinion without seeing the vehicle. A good place to start would be getting a wire diagram for your particular car. That will really help you narrow down which components could be bad. Good luck on it and let me know how you make out. My first thought would be a bad control head if it has Auto climate
Just letting you know you helped a ton. Been a cold winter in kc but now the envoy will handle it
Great video. Perfect tutorial on the ground currents. Saved me a ton of time. Thank you.
Thank you! I can work with this! I was afraid I would need to disconnect the battery every time I shut it off! Reaching under to connect/disconnect the plug is so much easier/ faster. Really didn't wanna wake up to a dead battery. It's a temporary sort-of-fix until I have the time/funds to fix it completely. But I can still defrost and my battery won't get drained. Good enough for now!
The best auto repair video I've ever seen. I've subscribed and hope I can find you next time I need help.
That advice worked on my 2006 Avalanche. That's 4 posting!!!
I'm definitely going to have to follow you! I'm a 29-year HVAC technician
I’m glad I seen your video...I was about to tell my mom to send her GMC” To the dealership” they wanted $90 dollar...just to look at it.
Her HVAC Module resister....only needed two screws to remove....I was able to tell they replaced it” because it had yellow junkyard markings....to make a long story short....they installed the wrong one and was installed backwards” water from the dash unit....got into the module.
Thanks for the video....saved my mom money.
That just happened on my wife's gmc yukon. Thanks for the video
No prob!
Excellent. Helped a lot. 100% fixed. Used BWD from advanced auto. 2003 Tahoe.
Great video and wish you lived in Brooklyn. I'm having this issue right now.
I just did this to my 2007 Buick rainer and it worked thank you
Dude thank you so much. New part is in and my family and I are back on the road.
Thank you, liked the video. Will do the test in the morning, hopefully my battery will be charged up. I didn't have time before I had to be at work to pull the fuse, so came home to a drained battery
No problem! Thanks for commenting and good luck with the repair
Thanks for the great video. Very helpful and useful. I saved a bunch of money by watching your video.
Awesome! Happy to hear it helped out!
just had this happen to my 07 SAAB 97x helped a lot
Excellent and straight to the point.
Thanks for the help. Worked perfectly. 2005 Chevy Avalanche.
Thank you so much you have made my day so much easier, very useful
Same issue on my 04 Denali @ 126k! Super helpful video
Well done and thank you
Thanks for my video my o5 gmc Yukon just started. Fan not blowing high . Running when I cut key off
Thanks for the help, I treid to change mine . Got new one at NAPA. Didn't work. I went to my fav shop McDonalds Auto Repair Hebron Ohio and it was the small black relay that is next to it on Chevy S10 2000. LOL the last shop that looked at it gave me a 2 hr estimate to look in the dash LOL.
No problem. Sorry to hear you had some troubles with it. Great that you have a reputable shop you can go to. It's hard to find decent mechanics these days that work for a decent rates
Great video. Short and to the point.
Brooke Tennant thanks for the feedback!
I'm buying a trailblazer with this problem thanks
no prob!
Love how you get to the point bro thanks
Excellent. Very clear and concise. This just happened to me this morning and having a
Glad you found it helpful. thanks
Thank you, thank you, thank you!!! I have a 2007 Trailblazer, and this bizarro air blowing thing just started today...I watched your video and was able to get in to the control module (I didn't even need to pop the wires off) and get in and unplug the blower control! that's as far as I feel comfortable going (not sure if I know how to check the whole voltage thing you talk about) but at least it's not blowing any more!
Great, clear cut, video! Good video work and explanation ! Thanks a bunch.
No problem. Glad it helped out
Great overview on this problem - thanks!
No problem!
NOTE: There are two styles of resister part - One for heating systems with automatic controls (as in this tutorial) and one for the models with manual controls. They are not interchangeable. And the prices are WAY different - $35 vs $105. Text lookup under "Blower Motor Resistor" at your local auto parts store but make sure you get the right one for your type of heating system.
Also, this video doesn't show the re-assembly, which is not straight forward. None of the current replacement parts are a plug-and-play replacement - they all needed some splicing.
Instead of a built in pig-tail plug to the fan and a female plug for the control console wire plug, (with the thin purple line) my replacement unit had a 5-line female plug on the body and came with a snap-on pig tail that had the 2-line connector to the fan, and 3 bare wires (red, black, and purple) that I had to splice onto the existing 3-wire line from the control console. I used quick splice connectors - the thick wires used the blue size, and the purple used a red size. A PITA when working under the dash with the door open on a cold winter afternoon, but not all that difficult.
Never-the-less, once all wired up, it solved the problem. Thanks for the video NNKH!
Thanks for the heads up.. exactly as described.
i’m having this problem right now. all i can find is manual a/c resistors for 2002 gmc envoy.
Good im gonna try this my 2004 gmc envoy did it 2 day wen my suv was off u can hear the blower still running wen I pulled my ground wire 2 my battery it turned off an wen I put my ground wire back on the battery the blower came back on
Mine just did this today
Thanks
Helped me out big time.
Thanks very much
No problem! Glad it was helpful
Glad you're still doing videos. This one helped my brother out. Thanks a million. Subscribed to your channel for support. Keep up the great contents. 👐🤘
Thanks so much man!
@ 00:54 I believe that would be pulse width modulation duty cycle. Thanks
Best video ever
Awesome man ! Exact details I needed on diag.
Thanks for your to the point but very helpful video.
I wanted to let you your amazing and I love your name because it helped my family very effective and immediately. God bless you
The plug disconnect at 3.18 could be more in depth,because it's not as simple as pushing up on the bottom and pulling it out.
Thank you right on !! Very helpfull.
Marvelous and to the point. HUGE help. Subscribed.
Which module did you have to replace?
My 2006 GMC Sierra has this problem. Fan stop when I unplugged from module to fan. Gonna take it from here. Thanks for video
No problem! Thanks for dropping a comment and good luck with the repair. More than likely the module. Very common failure.
LOL. I live in New Orleans, no way can I drive around without AC, this time of year, basically year round.
Yeah I hear you on that! Hot and muggy down there
Changed out module after a little voltage testing...
Yep , I am now ac happy again. Keep up on your helpful videos. Thanx pal
@@zilla5142 awesome to hear. And yeah man for sure. I appreciate you updating me as well. Consider checking out one of my other videos if you want to help support the channel. Thanks!!!
Great help great explanation
My neighbors 06 Escalade just started doing this last night.
So I got a 2000 blazer LT with this issue I've already replaced the blower module it still stays on. Is there a video on how to test the climate control module? Nice strait too the point video I do like that didn't know how much I'd like nit until I seen yours.
you rock this is my problem last two days thank you thank you thank you, sir.
No problem Noel!
Ok did it !!! Blower fan now unplugged But!!! I discovered that if you unplug both ends my engine fan also shut down so thanks for that and you need to change it out to get power to both fan and blower
Thanks subscribing!
Very informative and easy to follow thank you
Great video and it helped me diagnose the fan control module was faulty....but my problem came back a week later. Blower doesn't turn off when key is removed. Could I have gotten a bad module or did something else likely cause it to fail again???
Great video thanks showed how simple it is
Exactly the info I needed. Thanks
To the point with explanation, perfect.
Thank you for the knowledge! If it’s the climate control module, is replacing the whole digital unit the way to only way to fix that?
Concise. Nailed it & thank you