Saw your video, and thought to myself, "Naw, can't be that easy, i'm gonna have to tear the whole dash apart to figure this out." But I went ahead and tried it, and boy, am I glad I did! Planning a trip with my wife who is just finished with chemo (breast cancer, she beat it!) and she gets hot flashes bad, so when I showed her that the AC works, damn near got me some, right there and then, with that good AC blowing over us. But we didn't want the neighbors calling the cops (again), so we behaved. But thank you, thank you!
Another thing to check. The knobs on the HVAC, the plastics old and brittle. Mine was stuck on one side and when pulling the knob, pieces of the knob were cracked. The defrost, other settings were all fine with no breakdown. 10$ fix!
Thank u sir!!!!!!! I have a 2000 Buick Century and just replaced my ac compressor with a used compressor from a salvage yard which the car needed. After charging the system, it was blowing cold air, but barely and not hard through the dash vents, only the floor. I replaced the ac unit control panel to no avail. After skimming the internet for possible solutions to replacing cabin filter to actuator, your solution worked. Thank u!! Thank u!! Thank u!! because the temperatures this summer have been souring into the 100 degree mark. Wow!!! You are a live saver!!!
I had the same problem with a 2002 Buick Regal I purchased for a 16 year old driver. After assuming it was one of the vent controllers under the dash I was not looking forward to taking the dash apart to fix that. Plenty of TH-cam posts from people replacing those, but a big task working under dash and removing parts. After I saw your vacuum line post I checked the line under the hood, sure enough broken right next to battery. A few inches of rubber tube to make the splice and all works normal. This was a real lifesaver. Thanks a lot
Been dealing with this issue for several months. After watching this video, found the same vacuum line cracked and on the verge of breaking. Cut and spliced per the video and all good! less than 10 minutes to repair. Many thanks for your video!
Thank you thank you! 2000 century that was my wifes and heat hadnt worked in years. My daughters daily driver now with 240000 miles on it. After watching i fixxed it in less than 10 mins.
I already ordered the mode actuator and just found your video. I traced my vacuum line back to the battery and it was fine. I then traced it back to the top of the engine and the vacuum line slipped out of the nipple! I disconnected the nipple, slid the vacuum line back into the nipple and reattached it to the top of the engine. I started the car and the vent positions finally worked correctly and the air blows in the middle, where is should blow! Thank you very much and you really helped me out! It's been 95 degrees everyday here in Nashville and I was burning up! Also, anyone reading this, make sure you trace it all the way because it could be broken or in my case, just disconnected.
I lost vent control (right knob of the HVAC panel) of my Century 5 years ago. When I turn the knob nothing changes other than some hissing sound. UNTIL I SEE YOUR VIDEO. There is a hole in the vacuum hose in the exact same location as in your video. Easily fixed. Now HVAC works again! I never knew this knob controls vacuum paths instead of electrical signal.
Thanks a bunch, I had the same issue and sure enough the same vacuum line you highlighted was the problem and was broken in the same place. You saved me a bunch of money for sure. Please go to your favorite bar and enjoy an adult beverage.
Don't think you aren't a good mechanic? You just saved me ALOT of time and money I may have spent on an actuator. Mine broke in the exact spot. Man how did you find that.
I have a 1995 Buick Park Avenue. it blows ice cold, but out of the defrost! I will be popping the hood after work today to see if I could locate this line. I'm sure it gotta be the same issue you had. thanks for your video and sharing!!
I'm going to be checking this as soon as I get home. I bought this specific car less than 48 hours ago. AC light won't turn off, fan settings work but I can't move from vent, to bi-vent, defrost, etc. Its stuck on the vents in the middle of the dash (can still control heat settings on either side). I'm getting NO AIR to the defrost though. I also found water inside my car this morning (not coolant). I'm not mechanically inclined so I was looking up heater core, actuators, blower motor and resister, etc and found this video. I obviously also need to check my cabin air filter and cowl. Praying this is the fix (and cabin filter) my only concern is that I have NO defrost. If this works, I want to send you a thank you card and some beer - you will be my hero! Pffft, you ARE a mechanic. Thank you for posting this! I can see you already saved some people serious money and time.
Yes it sounds like the selector switch is not functioning. probably do on this type of vehicle because you have a leak in the vacuum seal somewhere. any trouble just let me know. I'll do what I can to help.
The 3 parts and adapter are no longer continued. Not Rock or Zone or dealership. I have the Buick part numbers, IF this is the case but can't find them. Will be looking tonight or tomorrow morning. Thank you so much! PS I'm in Canada
Follow up: I looked on the lines and found the line cracking after the t-junction by the battery. It was the line outbound towards the vent system, to which when I touched it, it completely broke. I took an improvised tube from my anti-freeze tester and rejoined the broken line perfectly ABOVE the wiring loom it was tucked under. Turned on car and ran A/C to full pressure, and even with engine at higher RPMs. Good fix!
I just bought a new used century, mine is doing the same thing, but i noticed it has a new battery, maybe someone broke it loose when changing; Glad to find out it is a Vacuum system... i will look for open line... Thankyou for making a video :-)
On a vacuum hose splice as you did I've at times experienced where it backs off. I put one drop of super glue on each end of hose and problem solved for a hose that is not to removed for a long time or ever again. Cutting at the ends where the glue is at allows to disconnect and reuse.
thanx man same place on 2001 century corner of battery is exactly where mine was cracked broke it and pulled the adapter that was already there and shortened line works fine now.
Your vacuum line was NOT cut. These types of plastic lines deteriorate and snaps off clean like a green bean. lol. Great job finding that hidden location. I am working on a 2000 lesabre, warm air on driver's side. Blend door actuator removed and manually in position but still warm. I am looking for vacuum leaks now since some other door must not be fully closing or opening. Thanks.
Will be looking for this on my 1998 Century. Hoping it works as it runs full pressure when at idle speeds, but flaps out to floor when at higher RPMs and stays low when at over 45mph. I figured was a vacuum line leak, but this COULD be the issue as it started after I hit hard bump a week ago on way home. Has had issue of air flow control ever since. Thanks for the tip!
So before the fix, were the controls not working, my controls are not working. The blower comes on if I select the 2nd to highest setting and finesse it just right. But the vent selector does not work. Was the the problem you had, because I'm planning on buying a new unit. And advise you have I would appreciate
Found that mine was broken in the exact same spot, but it had already been bypassed. My friend found another vacuum line disconnected in the passenger side floorboard.
I have the same motor but mines a 96 lumina and my motor looks the same should my vacuum lines be the same? what's the purpose to vacuum lines where do they go off too?
im having an issue i have a 2000 buick regal LSE and when i turn the heat or AC on the defrost vents work but the dash vents wont blow anything out...so it seems only the defrost works for some reason....any idea what the problem could be? thanks!
Mine has a problem and I changed the climate unit. But the ac control button was off. As I pushed it in to start working I heard a hissing sound that wasn't there before. What could have brought this about.
Hi i have a buick La Sabre 2000 with aromatic split air control passenger driver. I changed the AC and now driver side gets ac passenger gets heater. would you have a clue where to look to solve this
Found break in vacuum line in the same spot, fixed it but still not getting cold air on driver’s side. Ice cold on passenger. Vents seem to be working, actuators both working. What send the cold to driver? Spent hours under the dash. I do not want to remove it but it might be my next move
Just a few days ago I started having his issue and now I know what too look for. I do have a question, does this vacuum line in any way work with the Cruise Control? I am asking because that also stop working at the same time.
I have that same problem,... I found that same vacuum line, but on my car it goes all the way in front of the car , behind the headlight and into a black ball...and that's it,...my car is a 97 Buick Century custom
I would look for any cut vacuum lines laying around mine was cut and hidden underneath the battery when it was replaced. From the sounds of it you are having the same trouble that I did. Also check out Scotty Kilmer's channel for locating a vacuum leak with a cigar. :)
Thanks 👍 I found the broken vacuum line but I'm not able to find the other end side at all! I looked and searched everywhere I couldn't find it. I believe it's not there. Would you please or anyone tell me where is the other end side location! Where is it coming from? I bought a new vacuum line I connect the first side to the intake manifold engine it's clearly visible easily, but I have no idea where to connect the other end side! I searched everywhere online but can't find a clear answer or a clear location or how to connect it step by step, it's not even mentioned in the car manual or anywhere! 2004 Buick Century
hi there, I'm sorry you're having this difficulty. my only thought is find somebody somewhere that has a vehicle like yours and trace it down. you may have some luck with finding a dealer with a repair shop and they could find this for you.
I need to know where the line goes that is under the battery. It is connected to the engine, need some help here. You did not give any idea where the other end is.
Well, i have the same problem... will look to see if that's it. Probably is with all the others commenting on it. Had the car 10 years.... transmission solenoid problem next to fix....
2004 Buick Century.. i need the Remote Key codes, i want to replace the battery (i bought some). One Remote key works but the other key (no). I'm on disability, anyone can give me a link, would sure thank you.
YEP WB & G, I would gladly buy you a whiskey, beer, wine, tea, smoothie, whatever. My Icy windshield is going to clear up next time I go somewhere when it is that way. The AC might work better also? and...as a benefit, went on a shopping trip off island 2 weeks ago, checked oil etc....opened hood this morning, it has been cold this week, pinche rats nest on the top of the motor and things with a few new chew marks...BONUS THANKS AGAIN< another happy customer----adios---Bob
Yes that’s the line, do you happen to have a diagram on where the connections are I have the same problem on my 99 Regal and I don’t know where to connect the lines. They were disconnected when I got the car
If the Hi med low switch is electric it probably needs to be teplaced. If it is a vacuum switch a tube may be disconnected or the switch needs to be replaced
Lovely video content! Forgive me for chiming in, I would love your thoughts. Have you heard about - Trentvorty Safe Vehicle Theorem (Sure I saw it on Google)? It is an awesome one of a kind product for discovering how to repair your car the simple way without the normal expense. Ive heard some great things about it and my mate finally got great success with it.
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Saw your video, and thought to myself, "Naw, can't be that easy, i'm gonna have to tear the whole dash apart to figure this out." But I went ahead and tried it, and boy, am I glad I did! Planning a trip with my wife who is just finished with chemo (breast cancer, she beat it!) and she gets hot flashes bad, so when I showed her that the AC works, damn near got me some, right there and then, with that good AC blowing over us. But we didn't want the neighbors calling the cops (again), so we behaved. But thank you, thank you!
Hey man I was just reading your comment and I'm glad to I have read that your wife beat the cancer good for her and thank God 😎
Another thing to check. The knobs on the HVAC, the plastics old and brittle. Mine was stuck on one side and when pulling the knob, pieces of the knob were cracked. The defrost, other settings were all fine with no
breakdown. 10$ fix!
Thank u sir!!!!!!! I have a 2000 Buick Century and just replaced my ac compressor with a used compressor from a salvage yard which the car needed. After charging the system, it was blowing cold air, but barely and not hard through the dash vents, only the floor. I replaced the ac unit control panel to no avail. After skimming the internet for possible solutions to replacing cabin filter to actuator, your solution worked. Thank u!! Thank u!! Thank u!! because the temperatures this summer have been souring into the 100 degree mark. Wow!!! You are a live saver!!!
I had the same problem with a 2002 Buick Regal I purchased for a 16 year old driver. After assuming it was one of the vent controllers under the dash I was not looking forward to taking the dash apart to fix that.
Plenty of TH-cam posts from people replacing those, but a big task working under dash and removing parts.
After I saw your vacuum line post I checked the line under the hood, sure enough broken right next to battery. A few inches of rubber tube to make the splice and all works normal. This was a real lifesaver. Thanks a lot
Been dealing with this issue for several months. After watching this video, found the same vacuum line cracked and on the verge of breaking. Cut and spliced per the video and all good! less than 10 minutes to repair. Many thanks for your video!
Thank you thank you! 2000 century that was my wifes and heat hadnt worked in years. My daughters daily driver now with 240000 miles on it. After watching i fixxed it in less than 10 mins.
I already ordered the mode actuator and just found your video. I traced my vacuum line back to the battery and it was fine. I then traced it back to the top of the engine and the vacuum line slipped out of the nipple! I disconnected the nipple, slid the vacuum line back into the nipple and reattached it to the top of the engine. I started the car and the vent positions finally worked correctly and the air blows in the middle, where is should blow! Thank you very much and you really helped me out! It's been 95 degrees everyday here in Nashville and I was burning up! Also, anyone reading this, make sure you trace it all the way because it could be broken or in my case, just disconnected.
I lost vent control (right knob of the HVAC panel) of my Century 5 years ago. When I turn the knob nothing changes other than some hissing sound. UNTIL I SEE YOUR VIDEO. There is a hole in the vacuum hose in the exact same location as in your video. Easily fixed. Now HVAC works again! I never knew this knob controls vacuum paths instead of electrical signal.
Thanks a bunch, I had the same issue and sure enough the same vacuum line you highlighted was the problem and was broken in the same place. You saved me a bunch of money for sure. Please go to your favorite bar and enjoy an adult beverage.
Don't think you aren't a good mechanic? You just saved me ALOT of time and money I may have spent on an actuator. Mine broke in the exact spot. Man how did you find that.
Hey bro. I appreciate that a lot. That's means a lot:)
Love how you explained and showed exactly what you did
I have a 1995 Buick Park Avenue. it blows ice cold, but out of the defrost! I will be popping the hood after work today to see if I could locate this line. I'm sure it gotta be the same issue you had. thanks for your video and sharing!!
My issue was the line disconnected by the the vacuum source. Top back of the engine. Plugged it in and problem solved. Thanks a bunch for the video.
I'm going to be checking this as soon as I get home. I bought this specific car less than 48 hours ago. AC light won't turn off, fan settings work but I can't move from vent, to bi-vent, defrost, etc. Its stuck on the vents in the middle of the dash (can still control heat settings on either side). I'm getting NO AIR to the defrost though. I also found water inside my car this morning (not coolant). I'm not mechanically inclined so I was looking up heater core, actuators, blower motor and resister, etc and found this video. I obviously also need to check my cabin air filter and cowl. Praying this is the fix (and cabin filter) my only concern is that I have NO defrost. If this works, I want to send you a thank you card and some beer - you will be my hero! Pffft, you ARE a mechanic.
Thank you for posting this! I can see you already saved some people serious money and time.
Yes it sounds like the selector switch is not functioning. probably do on this type of vehicle because you have a leak in the vacuum seal somewhere. any trouble just let me know. I'll do what I can to help.
The 3 parts and adapter are no longer continued. Not Rock or Zone or dealership. I have the Buick part numbers, IF this is the case but can't find them. Will be looking tonight or tomorrow morning. Thank you so much!
PS I'm in Canada
@@amandapage4716 your best bet is to Google it and order the part in. Not surprised anyone else has it anymore. :-(
@@woodbrassandglass I cant locate parts anywhere!
what is the part number and description.
Follow up: I looked on the lines and found the line cracking after the t-junction by the battery. It was the line outbound towards the vent system, to which when I touched it, it completely broke. I took an improvised tube from my anti-freeze tester and rejoined the broken line perfectly ABOVE the wiring loom it was tucked under. Turned on car and ran A/C to full pressure, and even with engine at higher RPMs. Good fix!
I just bought a new used century, mine is doing the same thing, but i noticed it has a new battery, maybe someone broke it loose when changing; Glad to find out it is a Vacuum system... i will look for open line... Thankyou for making a video :-)
Thanks Man! Eleven bucks and even fewer minutes and both the vent and AC are working again!
Thanks man. I was looking everywhere for the other end on my broken line. It was about 3 inches inside the loom
Actuators is what changes your distribution on your flow adjustment should be at least two
Exactly the same problem for my century in the same spot on the vacuum line. Thanks for the video.
On a vacuum hose splice as you did I've at times experienced where it backs off. I put one drop of super glue on each end of hose and problem solved for a hose that is not to removed for a long time or ever again. Cutting at the ends where the glue is at allows to disconnect and reuse.
thanx man same place on 2001 century corner of battery is exactly where mine was cracked broke it and pulled the adapter that was already there and shortened line works fine now.
you just saved me a lot of money...the cowtown I live in ,..no mechanics at all that are honest & cheap (reasonable) thanks
Your vacuum line was NOT cut. These types of plastic lines deteriorate and snaps off clean like a green bean. lol.
Great job finding that hidden location.
I am working on a 2000 lesabre, warm air on driver's side. Blend door actuator removed and manually in position but still warm. I am looking for vacuum leaks now since some other door must not be fully closing or opening. Thanks.
Will be looking for this on my 1998 Century. Hoping it works as it runs full pressure when at idle speeds, but flaps out to floor when at higher RPMs and stays low when at over 45mph. I figured was a vacuum line leak, but this COULD be the issue as it started after I hit hard bump a week ago on way home. Has had issue of air flow control ever since. Thanks for the tip!
Just fixed my blender issue. It was exactly like the video. Sweet!
I'll have to try this. I just bought a used 2003 Century and it is having this problem. I never would have thought of vacuum hose.
You should notice an increase in power and better idle also as the vacuum line was sucking extra air into the engine.
Thanks for posting this!
I have the same car and are experiencing the same problem I know it's a g.m so I'm used to it gonna try this method of repair
Very good car Im gonna get it for my first car
what is the connector where the line goes to the back of the intake value
Thank you so much! This did the trick on my son's 2003 Buick Century. Do you have any suggestion's on repairing the fuel gauge?
No, sorry
I have a issue with a 91 Buick Regal don't blow out of the vents but blows out on the bottom any suggestions you might know?
So before the fix, were the controls not working, my controls are not working. The blower comes on if I select the 2nd to highest setting and finesse it just right. But the vent selector does not work. Was the the problem you had, because I'm planning on buying a new unit.
And advise you have I would appreciate
What are you connecting the line to below the battery ? I have the same problem ? Is it a bunch of wires ?????
Found that mine was broken in the exact same spot, but it had already been bypassed. My friend found another vacuum line disconnected in the passenger side floorboard.
I have the same motor but mines a 96 lumina and my motor looks the same should my vacuum lines be the same? what's the purpose to vacuum lines where do they go off too?
im having an issue i have a 2000 buick regal LSE and when i turn the heat or AC on the defrost vents work but the dash vents wont blow anything out...so it seems only the defrost works for some reason....any idea what the problem could be? thanks!
I have a 97 Buick century and my vent don’t blow out much air or have any pressure. I’ve changed all of my air filters and don’t know what to do next.
Mine has a problem and I changed the climate unit.
But the ac control button was off.
As I pushed it in to start working I heard a hissing sound that wasn't there before.
What could have brought this about.
Hi i have a buick La Sabre 2000 with aromatic split air control passenger driver. I changed the AC and now driver side gets ac passenger gets heater. would you have a clue where to look to solve this
That is what was wrong with my buick also.Thanks a bunch
your welcome:)
Found break in vacuum line in the same spot, fixed it but still not getting cold air on driver’s side. Ice cold on passenger. Vents seem to be working, actuators both working. What send the cold to driver? Spent hours under the dash. I do not want to remove it but it might be my next move
Just a few days ago I started having his issue and now I know what too look for. I do have a question, does this vacuum line in any way work with the Cruise Control? I am asking because that also stop working at the same time.
I am not sure on that, however I believe they are independent systems
I looked on driver side and saw 2 blend actuators. I was moving it and the passenger was blowing ac cold but now its all hot
I'm a go and check in the morning if that's the problem I'm gonna flip because I've tried everything smh
I have that same problem,... I found that same vacuum line, but on my car it goes all the way in front of the car , behind the headlight and into a black ball...and that's it,...my car is a 97 Buick Century custom
Would the placing of that particular vacuum line be the same for a 99 Buick regal?
I really don't know:)
I have a 2001 buick park ave and can't find the a/c vaccum line under the hood van someone help direct me it pls?
Thanks!
We have a 95 buik park Ave. The ac doesnt blow strong out of the vents. Will blow out of the feet and windshield even when you select vent. Any tips?
I would look for any cut vacuum lines laying around mine was cut and hidden underneath the battery when it was replaced. From the sounds of it you are having the same trouble that I did. Also check out Scotty Kilmer's channel for locating a vacuum leak with a cigar. :)
I have a 1998 Buick le Sabre V6 Air won’t blow out the Defrost vents to the windshield will your solution work for this problem Plz Help. Thanks 😎
I have a grand prix with same issue and mine was busted by the engine. I seen it easily just never thought that was the problem. Sure enough it was.
thanks bro that got mine fixed!
Thanks 👍
I found the broken vacuum line but I'm not able to find the other end side at all! I looked and searched everywhere I couldn't find it. I believe it's not there. Would you please or anyone tell me where is the other end side location! Where is it coming from? I bought a new vacuum line I connect the first side to the intake manifold engine it's clearly visible easily, but I have no idea where to connect the other end side! I searched everywhere online but can't find a clear answer or a clear location or how to connect it step by step, it's not even mentioned in the car manual or anywhere!
2004 Buick Century
hi there, I'm sorry you're having this difficulty. my only thought is find somebody somewhere that has a vehicle like yours and trace it down. you may have some luck with finding a dealer with a repair shop and they could find this for you.
I need to know where the line goes that is under the battery. It is connected to the engine, need some help here. You did not give any idea where the other end is.
James Immeker
I would follow it out. I only worked on this car once and can't remember where it goes.
Well, i have the same problem... will look to see if that's it. Probably is with all the others commenting on it. Had the car 10 years.... transmission solenoid problem next to fix....
2004 Buick Century.. i need the Remote Key codes, i want to replace the battery (i bought some). One Remote key works but the other key (no). I'm on disability, anyone can give me a link, would sure thank you.
need help i have an 2003 buick century my car turns on but as soon as i press gas it shuts off y???
Gilbert Martinez I'm not exactly sure, but it may be a sensor went bad.
YEP WB & G, I would gladly buy you a whiskey, beer, wine, tea, smoothie, whatever. My Icy windshield is going to clear up next time I go somewhere when it is that way. The AC might work better also? and...as a benefit, went on a shopping trip off island 2 weeks ago, checked oil etc....opened hood this morning, it has been cold this week, pinche rats nest on the top of the motor and things with a few new chew marks...BONUS
THANKS AGAIN< another happy customer----adios---Bob
Wait so that thin line is actually a vacuum line ?
All depends which line you are referring to. The line I worked on was about 1/8"-3/16" inches wide
Yes that’s the line, do you happen to have a diagram on where the connections are I have the same problem on my 99 Regal and I don’t know where to connect the lines. They were disconnected when I got the car
My lo hi switch is not working the air will blow on hi but not on low
If the Hi med low switch is electric it probably needs to be teplaced. If it is a vacuum switch a tube may be disconnected or the switch needs to be replaced
08urr
Lovely video content! Forgive me for chiming in, I would love your thoughts. Have you heard about - Trentvorty Safe Vehicle Theorem (Sure I saw it on Google)? It is an awesome one of a kind product for discovering how to repair your car the simple way without the normal expense. Ive heard some great things about it and my mate finally got great success with it.