Gbody HVAC system overview and problems. On David's T type

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Steve V's Automotive

5 жыл бұрын

Пікірлер: 69

@andrewjohnson289 4 жыл бұрын

Thanks for the video. Great info and great channel. Thanks for all you for the turbo Buick community

@ReeProgram 3 жыл бұрын

Thank you for this. I’m working on my 87 Buick Grand National Hvac system and this was very helpful

@boss94ways51 3 жыл бұрын

@Helmut Ree Darbouze man me to im working on mine this week on vacation..i got to fix vac line under the hood for the heater control valve...got new blower heater core and evaporator....compressor and condenser...i got my work cut out this week.

@mastergreen8492 3 күн бұрын

Nice Info

@blackcarsgarage4745 5 жыл бұрын

Great info Steve thanks I just have a question on how the vacuum hoses are routed for the heater core valve and vacuum reservoir ( I think that's how its called)

@BrthRt64Implala 11 ай бұрын

Great video!!! What’s the little green box that says “AC” on it do?

@phreaktor 2 жыл бұрын

Thank you. Ready to tackle trouble shooting my 82 Monte. (Video on my channel). Subbed!

@wedovatoloco4069 Жыл бұрын

Steve great video. Everything so far works, but the vent door doesn't want to open to let blow thru vents. What else do I gotta do?

@rq6884 3 жыл бұрын

Steve I see the number for the large vacuum selector on the ACDelco box. Do you know the part for the small one behind the blower motor speed switch?

@davidandlaurie1 10 ай бұрын

ty for this video

@dr-cr7nk Жыл бұрын

My 1991 Chevy g20 doesn’t want to blow air at all on any speed? Thanks for the info. Hopefully I figure it out asap, living in Texas heat is no joke 😂

@jasonksfbc 2 жыл бұрын

Steve, I have a basket case im trying to figure out on a 86 cutlass. Can you tell me where the 4 wires in the plug you were talking about goes? Im assuming power, ground and the other 2 go to the compressor.

@aaronparris3539 3 жыл бұрын

Do you know where I can find some blend door vacuum actuators for a 1979 ford f 150 with factory air? If not can they be rebuilt?

@codythomas3586 2 жыл бұрын

Where did you get that little vacuum thing at? The one with the 9 plugs on the back! I need one for my 1993 Chevy g20

@jnstrcklnd 10 ай бұрын

Hi. Working on an 87 El Camino. My vents work but defrost doesn't.

@lazarogonzalez7618 4 жыл бұрын

Where in the motor do I Connect your vacuum hoses I took the vacuum ball out and now when I Accelerate it won’t blow air

@BluuSmurf 11 ай бұрын

Hey where does the relay harness plug connect to i have the plug off the relay but i can’t locate the plug it goes to i i would hate to pull off my fender liner to find the plug it connects too

@jasonthomas8752 Жыл бұрын

Is there a way to swap to manual from electric ac controls I can’t find the ac blower module for my Lesabre

@TheRealMichaelP 3 жыл бұрын

Do you know where to get a replacement relay for the high speed only ?

@michaelgarcia4751 10 ай бұрын

Thank you

@LJC5865 5 жыл бұрын

Sorry..i meant the inside gray and purple hoses. 6 hoses leave the hvac controller.. where do the gray n purple ones go? Any help appreciated.

@Steve_zorg 7 ай бұрын

Did you find that arm yet looking for a part number

@boss94ways51 2 жыл бұрын

Whats the place where you said you can get the pigtail for the high speed for the blower...CASPERS ? WHAT'S THE WEB PAGE OR THE CORRECT NAME...I GOT ALL SPEEDS BUT NOT HIGH .I REPLACE BLOWER , RELAY, & RESISTOR. ..

@freddyespi92 3 жыл бұрын

Great video How do you remove the broken lever thats connected to the heater box... mine is broken just like the one on the video and I can get it of... any help would be great Thank you.

@mikebilecki Жыл бұрын

Did you this figured out ? I’m having the same issue. Any help would be appreciated. Thanks

@84SS931 6 ай бұрын

Do you have the part number the small 2 port vacuum connector?

@royereynolds376 4 жыл бұрын

Where did you get the vacuum switch from

@kermitsuicide4369 Жыл бұрын

What opens the fender vent doors in the corner of the cap? Mine won’t open with the vacuum

@84SS931 Жыл бұрын

Will my cable still function properly if the plastic clip on the left that keeps the cable in place broke off?

@jesuscastaneda907 Жыл бұрын

Where did you find the vacume parts for it ?

@84SS931 Жыл бұрын

How do you get the blend door arm out ?

@mistyjett2259 3 жыл бұрын

What if heater blows but doesn’t get hot, where do I start? Thanks

@MrCreeper211 3 жыл бұрын

Would any of this affect it to not blow at all

@junkyardchronicles1289 4 жыл бұрын

Where do the vacuum lines hook up to the engine vacuum?

@chevyrider247 4 жыл бұрын

Please help I'm having the same issue. I see 2 vacuum lines. The previous owner removed the vacuum canister. I just need info on where and what vacuum lines to lead to. Do you get the vacuum from the intake or carb.

@rockfordhx2768 Жыл бұрын

How come I’m not getting heat from my vents on my 84 cutlass but I get it on the floor

@jayinla81 2 жыл бұрын

My 84 Regal is leaking engine coolant right under the hvac box. Usually where the AC condensation drips after use behind the passenger side wheel well. Where could that leak be coming from

@jaycee6639 Жыл бұрын

Heater core

@CutlassVibes 2 жыл бұрын

Great video sir...mine won't change between vent, heater, and defrost. Mine blows to the bottom and some on top at all times. Where should I start? I appreciate your time on advance.

@phreaktor 2 жыл бұрын

Please reply if you figure this out. Same here. It seems like the issue is related to the selector part that rotates between each vacuum line. Something is broken. His seems to have a detent or click between each position selection. Mine doesn’t, meaning something is worn or not connected there.

@xNINJAxPAPAx Жыл бұрын

Following

@CutlassVibes Жыл бұрын

@phreaktor did you ever figure something out on this?

@gaming_king1465 2 жыл бұрын

when I turn my ac on in my cutlass it don’t come out the vent it only comes out the top by the windshield

@LJC5865 5 жыл бұрын

Last month I removed all smog crap from my 80elco..and the black ball.. Before i follow Davids awesome ac vid (all new parts coming)..i need black ball and its vac likes put back (1 is port vac). In cab have 2 (together)black and orange that go somewhere) help.

@danielwaldrop2862 4 жыл бұрын

Did you ever get it figured out? I have the same problem

@meanpaintandbody 2 жыл бұрын

Do u happen to have a diagram i just got a 1980 regal some idiot was thinking to do a vacuum delete now i have not ac.. I belive he might of also butcher the radio harness sinse i dont have that many wires behind the radio

@PacificLlama 2 жыл бұрын

Where does the vacuum come into those lines from the engine? My air only comes out from the floor and defrost which indicates i have a vacuum leak somewhere. The vacuum hose that comes out of my bowl goes to nothing so im assuming thats the issue i just dont know where it hooks up to. Thanks in advance

@phreaktor 2 жыл бұрын

Did you figure this out?

@Firedowg999 5 жыл бұрын

steve, where does the HVAC get its 12v power from? Starter post? I got one that im going to add HVAC back into and not sure where to grab the 12v from.

@stevevsautomotive1998 5 жыл бұрын

There's a signal wire that breaks our of the harness at the back of the control head. I point that out in another video .

@Firedowg999 5 жыл бұрын

@@stevevsautomotive1998 I dont see any brown wire under my dash for that to plug into. Does it come out of the same harness as the radio? Im wondering if it got cut off? .... The large red wire under the hood that the relay gets power from. Does that red wire just hook to the starter stud or a junction somewhere?

@stevevsautomotive1998 5 жыл бұрын

@@Firedowg999 if it's not there break out the schematic and trace it out. There is a fuse on the fusebox. It's switched 12v, do not run it from starter. The Hi speed relay gets its power that fuseable link at the starter but it's controled by the the control head.

@Firedowg999 5 жыл бұрын

Steve here is one for you. I got my back all on and all new components. But now when I turn it to the off position it just stays running on low . If I unplug the resistor it shuts off then only works on high. I put the old resistor in it and it does the same. Any idea?

@techfordummies6801 2 жыл бұрын

Can anyone help? When I turn the heat or ac on nothing happen, ran hot wire to the blower motor and it come on any tip or info would help

@alligotallineed9446 2 жыл бұрын

I got my pivot arm in but can’t get it to rotate and don’t want to break it anything am doing wrong

@mikebilecki Жыл бұрын

Did you get this corrected? I’m having the same issue. Any help would be appreciated.

@user-xk2wq1de6u 5 ай бұрын

Changed everything on mines and still no power at all

@melloyellow1896 2 жыл бұрын

No power to wires help

@carlosavalos79 3 жыл бұрын

What could be the problem if my heater doesn't blow hot?

@mistyjett2259 3 жыл бұрын

Did you find the problem? I’m having the same issue

@carlosavalos79 3 жыл бұрын

@@mistyjett2259 yes my heater core was plugged

@mistyjett2259 3 жыл бұрын

Thanks!! Have to check that next.

@TheRealMichaelP 3 жыл бұрын

@@carlosavalos79 how did you verify?

@yungshoota3903 Жыл бұрын

Where are the power lines

@suewatson1912 2 жыл бұрын

Good video,but you don't answer questions in the comment

@stevevsautomotive1998 2 жыл бұрын

Hi Sue. Yes that's correct, unfortunately I am spread too thin running my business by myself. Wish I had time, unfortunately I don't. My customers know how to get a hold of me directly. That's where my focus lies. Have a blessed day.

@suewatson1912 2 жыл бұрын

@@stevevsautomotive1998 No disrespect intended . Just struck me that there was so many good questions regarding your informative video. Its videos like this that help the novice hobbyist repair there cars themself.

@stevevsautomotive1998 2 жыл бұрын

@@suewatson1912 you nailed it, I am a professional 1 man show who takes the time to post things. Most shops won't do anything unless they are getting paid, especially for the hobbiest, I get it I do.