DIY- Troubleshooting No Air Conditioning

Your favorite DIYer returns from prolonged absence to troubleshoot an air conditioning problem that would have caused Scotty's typical minions to dump $20 right into the ozone layer before they even got a clue.

[@spelunkerd]

This kind of detective work on a car is almost always fun, and it sure makes a helpful video. Nicely done. Matt, just ignore the trolls and haters. By spending so much of -your- our time responding to trolls on followup videos, you're letting them plan the agenda for future recordings. Most of us don't need to hear it, and your videos will be faster, cleaner and better.

[@timmitchell4633]

First off, love the channel, and your easy to understand repairs and methods. THANK YOU AND KEEP THEM COMING. My 2002 Merc Benz S430 (W220) A/C stopped working after I replaced the windshield wiper hose (with the heater wire/ cable inside). The unit small red light is on indicating the system works, but will not blow cold air. The clutch does engage, on then off, constantly. The typical reset feature/ trick doesn't work for whatever this error is currently. I checked the relays/ switched and replaced them as well. Assuming the system may have been low on refrigerant, I filled it with what it took in, which appeared to be almost two full "tall" cans of AC Pro. Reset the system and the air came on "absolutely freezing cold" for about two minutes then shut off again. After resetting and attempting to make it stay on, it wouldn't reset anymore after four attempts. I noticed a clear liquid had leaked from the bottom center of the car down the driveway to the rear of the car, no smell or color, but thicker than water. The next day, with the engine running and the air refilled and reset once more, I heard a loud hissing and bursting flow of air or spray from under the hood, front drivers side for about 40 seconds then stopped. I believe it was a pressure relief vale of some sort !!! Scared the &%$#@^& %$#%^&%#@ out of me to be exact. The clutch still engages, on then off, constantly. Whats wrong with the cars AC ????? What would you recommend I check or replace???? No AC for the past four months now...

[@SchrodingersBox]

What is the low and high side pressure showing?

[@qwikwitz]

Thanks for the video ! I like your attitude but I still am learning to work on my personal vehicles. I am guilty of the “replace until you find the coconut” methodology. Keep up the good work and we will keep watching and learning ❤️

[@we-are-electric1445]

In the run up to 12:29 in the video you had the voltmeter across the load side relay contacts. You would be unlikely to see a potential difference between the two relay load contacts - even if the load was passing current. With an open circuit as you had, the relay load side terminal would be floating. That is why you didn't read a voltage. This of course changed when you rearranged your meter leads to reference to the engine (which is grounded). If your load hadn't been floating the load current would tried to pass through the DVM.

[@mameryjazz]

Help please. First of all thanks for posting this great video. Here is my story. An almost similar story made you think AC Compressor Load but I'd like to give you more details. 2012 Malibu 2.4l Engine was replaced and AC came on and off and then disappeared. At 1st, I thought LEAK... Please let me point out I have basic or less than basic electrical diagnostic skill. 2 days ago, I decided to check for power and ground at the compressor connector after making sure all fuses and relay were good. I found a broken power wire (green) at the back of the connector. I connected the 2 wires temporarily, started the car and switch the AC, the clutch engaged and I could feel the air. HAPPY I FIXED IT, i just need to connect wires well for good. Yesterday, i woke up with this task in mind but since the wire cut at the connector was so small, I went to Chevrolet and purchased a brand new connector. THE BEGINNING OF MY NIGHTMARE NOW. I cut power and ground wire and, despite trying to be careful, I connected the wires to the wrong sides of the connector, not sure, but I had ground and power at the end of the Compressor connector. Plugged it, started the car and fuse blew. Replaced it, tried again fuse blew 2 times more. I tried to plug a bi directional scan tool but it would not connect to the control module; it is as if, my scan tool is not plugged. My neighbor put a wire on the ac clutch fuse to bypass it and I ensure to reconnect the power and ground wire like they are supposed to be. Scantool still can't connect. IM VERY CONFUSED AND THIS IS WHERE I NEED YOUR LEAD. 1- My first thought is AC CONTROL MODULE BURNED DUE (I do not know where the AC control module is located). The AC control panel buttons seems to be working. 2- Could the AC Compressor be burned by the wrong wire connections? 3- Since the fuse kept blowing before we bypass it, I also thought another broken wire but I don't know since compressor clutch still wont engage despite bypass. 4- I get 5V at the AC Pressure switch; could the AC pressure switch be the issue? What do you think? Thanks for reading my novel

[@DarK-pk7ve]

One hell of a diagnosis sir, you might have possibly saved us so much time and money. Thank you

[@chrishill5166]

VERY IMPRESSED WITH YOUR LOGIC. FROM UK.

[@intestinalworm1202]

This is excellent. Now, just have to find my multimeter - my teenage son put it somewhere when he was cleaning the house - that was 4 months ago!

[@sinjin90ful]

Great info! blunt and to the point is exactly what this world needs now a days

[@tptm100]

Thanks for the add, good to watch someone do things with finess.

[@carypyle3257]

Reminds me of.. me when I am in my shop working. I talk to myself in the same manner. Kudo;s

[@negativejeff]

Nicely done! I wish all problems were that easy to diagnose.

[@rubyallen3169]

Yourself eric o from sma and Scotty kilmer are some of the best mechanics I've seen on KZbin

[@SchrodingersBox]

Scotty Kilmer?????? You lost me there. Scotty couldnt diagnose diaper rash on a baby with sandpaper Huggies.

[@rubyallen3169]

@@SchrodingersBox I didn't mean anything bad I'm just saying u and the ones I named off are some the best mechanics on KZbin to watch I'm not taking away anything from anybody I have respect for u all u are right Scotty don't really diagnose he just changes out parts

[@SchrodingersBox]

Its all good. Glad you found the channel. I just find Scotty Kilmer to be the opposite of my channel lol

[@Tedybear315]

Did the DYI work on both our car's A/C systems. Found out that oddly VW systems do not cycle the clutch, but are always 'on' during A/C operation. Lousy design. I replaced the clutch with a used one (5 bucks as opposed to almost 200 as you can't buy just the electromagnet) It already failed several months later. Open circuit. Simple ohm check. With mine? Needed to give the system a part charge with U/V tracer. Blew great cold! But the bottom of the receiver dryer had a hairline crack/hole. Always do the simple basic checks before tossing in a can of R134a. (of course, know what to look for! and have an idea for direction as Scanner Danner would say)

[@josem.quintanaparra8570]

Awesome Diagnosis, my AC stopped cooling but the compressor kicks in, I put refrigerant in still hot air, Any Suggestions I would Appreciate. Thank You

[@SchrodingersBox]

What are the high and low side pressures showing?

[@jofro2040]

LOL Dont let the nephilim get u down bro. Keep teaching positive knowledge. We appreciate you. You can only inspire the one who care ...Or the few, should I say

[@EmunahCreative]

Jo Fro I don't think "nephilim" is his problem...or perhaps they are. ROFL

[@steventenney8797]

not just adding refrigerant but one that contains stop leak and oil. adding more oil makes evaporator heat transfer worse

[@josholson5015]

The stores love to sell that stuff.

[@enjoythehunt5135]

Great diagnosis... thanks!!!!!

[@godfreypoon5148]

Reason #0: Failure of vehicle owner to specify air conditioning option at time of purchase. Don't let that one get you. Ah, but before I even watch the video, let me attempt to turn the attention onto myself by recounting the story of the air conditioner failure in my own vehicle. Long story short, some kind of protective switch in the compressor had/had crapped up contacts, similar to several other contacts in the vehicle (all of which are in components made by Mitsubishi...). The ohm-meter read several 10s of kiloohms across said contact. Rather than expend any substantial effort, I devised a dodgy method for de-crapping the contacts in situ. The contact was in the circuit of the compressor clutch, which is a highly inductive electrical component. I momentarily shorted across the contacts, and the inductive flyback, when the short was removed, produced a high enough voltage to clear the crap and allow the contacts to work properly. This makes it work for another 6 months...

[@DENicholsAutoBravado]

Like a propane torch cleaning off the carbon, you shorted the connection to clean the contacts? Not knowing the circuit makes me call that gutsy! :)

[@salvadordlicon9467]

Visual inspections are for obvious problems. Good video. Oh and no you wont find a broken wire in a wire loom with just a visual inspection.

[@trainer2018]

Nice job Matt glad to see you on here again. Hey you didn't use your load pro, I'm getting all teary eyed,lol.

[@jgeorges3061]

MATT, good to see you back always learn some thing . cheeeeeers

[@taylorwilson2967]

Great video, very informative. Could have done with a little less condescension, though...

[@SchrodingersBox]

we could have done without your comment too if you think about it.

[@SPIKEOPS82]

Slim having all these issues. Crazy thing is I can put a jumper in the relay spots and clutch kicks on

[@SchrodingersBox]

possibly it’s a control side issue then.

[@SPIKEOPS82]

@@SchrodingersBox ha, tracked it down to a short at the A/C pressure switch connector. Thanks. If it wasn’t for this video I would have never gone through it so thoroughly! Dang man, 3 days messing with it. I’m still confused how it turned on when I jumped it, I’m thinking I was revers feeding power activating the clutch, but I don’t think that’s possible. Anyway, thanks a lot man.

[@kylefoster1033]

Hey man! I like Scotty. I like your videos to. There much more involved than his but he’s definitely got sound advice.

[@SchrodingersBox]

Sound advice???? "If you have a P0171 code it might be your oxygen sensor! Try changing it..." How is that sound advice???

[@reeseluna7639]

Awesome video ! Very helpful

[@SchrodingersBox]

Glad to hear it!

[@rubyallen3169]

Good job Man that's was a good video don't listen to what they say you're just as good as the other guys out there

[@tonybp965]

Arrogance is definitely not a way to go young man. Check your ego. You can do things without putting others down.

[@SchrodingersBox]

As if you have some kind of authority. Checkyourself I wreck you for looking hypocritical

[@timmahoney5803]

I have 2000 Ford Expedition 4.6L. Idling engine in parking lot with AC running all the sudden a loud explosion sound that lithely shook the truck , steam came out from engine compartment. I shut it down. Found a AC hose that blew off that leads down to the compressor. The hose had a crimped fitting that is gone. Question: what could cause pressure to build up that much to blow crimped hose off, or am I thinking to much into it. Not sure if I need to just change out hoses, or if I may have compressor issues. Thoughts?

[@SchrodingersBox]

Sounds like a combination clogged oriface tube and failed high pressure switch.

[@asliasif1]

I love your videos. He have a unique way of making videos.

[@kapekodbob]

Fasinated that you said that the owner told you he was sitting at a stop light and the ac cycled off and then only blew warm air. So, somehow the wire in question was miraculusly severed at that time ? Seems like a set up by him to see how honest you are ?

[@SchrodingersBox]

No- it was a bad butt connection repair is all. Looks like it was crimped with cutters instead of a crimp tool

[@kapekodbob]

@@SchrodingersBox lots people do not know how to properly crimp. Thanks for clearing this up for me. Bob.

[@SchrodingersBox]

Boy aint that the truth! I see improper connections all the time. Allllllll the time. Its also a source of voltage drop as well.

[@danielsavory7109]

2012 Chevy Cruze 1lt. Don't want to waste money. A/C blower suspect. Pulled in cabin air filter. Kick start the motor with finger tips and it runs, blows cold air, and can change speeds 1-4. When shut off must be "kick started " again. Any advice?

[@SchrodingersBox]

Check the amperage draw the motor is requiring

[@nyc1655]

My doctor said he has to do a visual inspection to find the problem lol

[@SchrodingersBox]

Maybe he is a gynecologist.

[@TradeAlgoPremier]

At 2:47, Yep. Know what you are looking for. This also applies to anything under the sun. Marriage, like choices, friends, just to name a few.

[@jamoliverj]

Thanks Matt. Great video.

[@carlosdeleon4111]

Great video , very helpful.

[@MrSonordrumr]

Great video, but do you you have to put put down other KZbin channels and/or people that comment? Youre putting it out there, so you shouldnt expect all positive responses, man. Very arrogant......sorry

[@SchrodingersBox]

Ummmm, how is this any different than what you just did? Why are you not holding yourself to the exact same standard, especially considering you aren't contributing anything while I am? Please explain. Because you sound both ignorant AND incompetent to be quite honest. Just giving you constructive feedback man.

[@MrSonordrumr]

Im hardly arrogant, just watching your video should tell you that. And as far as incompetant, how can you tell? Ive been doing this a long time but I do watch videos to help me with some of the new vehicles. Saves me time. All respect, but yours wasnt especially helpful, turned it off early, man. Lol!

[@SchrodingersBox]

All i’m saying is I am holding you to the same standards. That’s all. You are welcome to learn from me but you don’t set the standards.

[@SchrodingersBox]

No you fail to understand. I set the standards. thats why i deleted your last comment. Got it yet? Now be a good little intern and keep learning. Otherwise i’ll set them even higher.

[@MysLed]

Why have you chosen to be so defensive with potential subscribers comments. If they all seem to you like rubbish ignorant kids who are just posting dumb comments on your videos than why not disable the comments altogether? Would seem wise given that after just reading 2 to 3 of your back and forth replies to comments has me understand why it is that your channel stands where it's at. If you could ignore your unnecessary catty need to speak negatively on other specific yt mechanics, your videos are informative and would be helpful to the less inclined in auto mechanic repairs. Now with that I couldn't support your method or belief in teaching, so I'll be sure to avoid your channels videos in the future which I can guess you won't be bothered by that but also I'm pretty positive that I'm not the first to think this way.

[@palsnewfoundlandchannel3589]

Scotty Kilmer is #1.

[@SchrodingersBox]

At what? Parts changing? Or in viewership appealing to the masses of ignorant wannabes who aren’t educated enough to know better?

[@kennynvake4hve584]

What if the low side gauge moves very little maybe 5 lbs of pressure...is the compressor gone?....The compressor does spin so its not the magnetic clutch. I cannot how the gauge to the high side.

[@SchrodingersBox]

depends entire on the high side reading.

[@8953147]

Glad your back bro! You definitely know how to "whip" us 2%ers into shape.

[@angelocalamita]

Where are you at as I have the same problem air conditioning not working. It was working in August when I bought the vehicle. Now I go to turn it on and the compressors not worki'd like for you to check it out

[@SchrodingersBox]

Denver colorado.

[@lo-rezillusions7188]

I would appreciate your advice on something. My 2007 Tahoe A/C light blinks 3 times then turns off. Can't get it to turn on. I've seen solutions from "Ambient Temp Sensors" to "The A/C compressor is bad" Before I bring it in for a mechanic to determine, I wanted to see if you have dealt with this before, and what was the majority of the time the solution.

[@SchrodingersBox]

Ok- what data do you have. What is the voltage at the load and control sides during and after the AC light blinking. Need a basic beginning direction to start with.

[@lo-rezillusions7188]

@@SchrodingersBox Oh I don't know, I'm far from a mechanic

[@darrenx5699]

where is the link to your understanding and diagnosing air conditioning video?

[@SchrodingersBox]

www.schrodingersboxqm.com

[@angelaharter3572]

2004 chevy Colorado Ac power problem and heating.

[@billbryan681]

The first thing you do is check freon then check current going to cycling switch

[@SchrodingersBox]

Wait. Hold on. How are you possibly going to check Freon if it isn’t cycling??? That isn’t possible.

[@salvadorgonzalez6883]

Ty very much Sr. Very helpful !

[@TheBigTrell]

So I know this is an old video but I have a 2009 Tahoe and my 10a fuse blows as soon as I turn on a/c I know I have an open but I’m not sure how to find it should I just follow the compressor wire or could it be somewhere else

[@SchrodingersBox]

how can the fuse be blowing if you have an open? How would that be possible?

[@lo-rezillusions7188]

HAHAHA, you are one pissed off mechanic LOL

[@cherrypicker8897]

Always interesting. Nicely done.

[@thomasmcdade93]

Good show 🇺🇸🌴😎

[@efrensaclolo7021]

I have an intermittent cooling driving in the freeway and suddenly the a/c stop cooling but when I turn off for 10 minutes and turn it back on it will ice cold again and it happened in 3 separate driving situation.What could be the issue?I noticed that before it quit the temp will go to the3/4 mark not close to the red.

[@SchrodingersBox]

sounds like a clogged orifice tube.

[@joshuamclean2413]

I just have a question. If the system has low pressure would it tell the PCM not to send power to the wire?

[@joshuamclean2413]

to prevent damage to the compressor

[@SchrodingersBox]

not exactly. low pressure disengages voltage to the clutch switch

[@ExtremeRecluse]

My ac went bad over a day on my 2004 Dodge Grand Caravan SXT.. The ac clutch engages at all times when the air conditioner is turned on. Tried to put a can of refrigerant into the low side while ac was on Max. None of the refrigerant transferred. The ac clutch still remained on. One of my friends hooked up an ac manifold pressure set. The pressures were both around 95 and never changed. What?

[@SchrodingersBox]

Yep no mystery there-you have no suction. btw you are lucky as hell you also have no compression and you didn't blow your hand off adding the refrigerant. ALWAYS examine the pressures before adding refrigerant. They really need to outlaw selling those cans to the public with the low side guage only.

[@blankstaircase]

Jello Biafra fixes your car! Lol. Just kidding.. Great video, Great information. Do thank you for sharing..

[@carylamari6546]

You are a smart man however you do not have to demean anyone to prove it. Automobile wiring these days are made with things like soy, some have sugar and when warm give off a faint vanilla odor. Rodents like mice have always chewed through wires however given the fact most all new automotive wiring are made with these new ingredients I have seen and repaired many broken wires and some a clean cut through like the one you showed. If you see nuts or mice droppings and if the owner of the Vehicle lives in a wooded area this might be what has caused the break. Something to consider. One of many possibilities.

[@SchrodingersBox]

Ummmmmm how about instead of all that just pay attention to the video where i said it was due to an incorrectly clinched butt connector done by a hack

[@davidjackson7442]

How do you get the compresser to kick In I've already checked the fused and changed the controls on the dash no amps on the lower side please get back to me I'm going crazy

[@SchrodingersBox]

just put 12 V to the solenoid is all

[@whitetiger8652]

Nice job Matt.

[@needmoretec6323]

there's no link to other video you mentioned ..and i did a search of your videos and got no hits?

[@mikejamieson4252]

My compressor turns on but lexus blows warm was gonna add freon to low side port but pressure was too high any ideas?

[@SchrodingersBox]

yes. if pressure is to high check the oriface valve. I usually test it with a basic static decay test to keep things simple.

[@kevinferrell1739]

I have a 2000 Jeep Cherokee. Will Not Take Freon..i have no pressure in the line/drier/acumalotor to ck if its electrical. clutch will kick in manually wire 1 wire from hoe hot from the comp to the hot on the battery . .im showing power on both hot and ground on the compressor. Is that right? Even when its unhooked from the plug coming from the wiring harness. It has no power on it until its hook up to the A/C . Also low pressure switch shows both inserts to have power. Is that right? Can you help me please...

[@SchrodingersBox]

If you have power on a compressor ground you must have an internal short- there is no other way. Disconnect the connector and if you have power on the ground then you are doing it wrong.

[@kevinferrell1739]

ok sorry. let me try to explain it better. Please tell me what i am doing wrong. Internal short as a short in the compressor itself you mean? I have power on both ac wires with it plugged in or not plugged in. either way both wire show hot. it shows power on both wires on the compressor. the coil wire and the ground wire . No matter if its plugged in or not . with the ac unplugged i have no power on the wiring harness wire. The wire coming from the harness that has the plug end on it does not have any power only until i plug the ac up. the ac gives it power. instead of that wire giving the compressor power. Which is the way i thought it should be. The ac wires show to be hot even when its not plugged up to the wiring harness. The low pressure side switch shows power on both ports even with the ac unplugged and will blow the big ac fuse if i try to bridge it over to cycle the clutch. Will also blow the big ac fuse if i try to bridge it over from the fuse box/relay. but if i unhook the high side sensor switch that show 3 hot 1 not 4 incerts that gives me 1 hot 1 not on the low side switch. then try to bridge it over and it still will not cycle the clutch but it dont blow the fuse that way. the high side switch like i said shows 3 hot 1 not but the 1 thats shows not hot is a blue wire going into the switch. that blue wire show to have power on it going into the switch but show no power in the port hole of the switch. Yet i can hook a wire to the coil wire on the compressor then to the hot post and the clutch will cycle that way. The compressor worked great on the 96 cherokee. all i did was change the backs out because the lines go on different. i put a test light on the what should be the ground but shows to be hot held it there and i pulled every fuse and relay in the fuse box under the hood 1 by 1 and none of those cause the light to go out or the power to go off of that wire. Didnt do it inside the fuse box yet. . still showed power on the ground wire on the compressor. Well it should be ground but some how its got power on it. i do think i got a ground somewhere because that low side pressure switch should cycle the clutch when u bridge it over from there and so should the fuse/relay but they both will blow the big 20 amp fuse if i try that. How do i find a ground. The electric fan switch/plug in shows, unplugged 1 port has power 1 port no power but when i plug it back in it shows both wires going out the fan to be hot. With the test light on the battery ground the light comes on when i touch anything. the ac lines the compressor the engine the engine block ground inside fender .. Man i need help..i hope you can understand this...

[@froy204]

Hello, on my 07 Chrysler 300 the ac compressor started squealing, screaching and smelled burnt

[@SchrodingersBox]

Check the compressor clutch.

[@Clicklc1500]

A smart ass mechanic, LOL!!!

[@Clicklc1500]

sub'd

[@KOPFTJAEGER8541]

I feel like I am watching Woody Allen do car repairs.

[@SchrodingersBox]

Hmmmm I better get rid of that video where I have sex with my daughter then

[@grindhard4312]

Great job dude 👍

[@kentbarger6974]

I've been retired mechanic I worked on cars all my life including AC you have your ignition switch on when testing the relay also if you don't know how to text a real life take another relay in the fuse box that has the same numbers on a additional relay for example the windshield relay have the same numbers on they are the same type of relay so take out the windshield wiper relay then take out the AC compressor relay and put it in windshield relay so if you check your windshield wipers in there working you can take both relays out and you can put the real again on the windshield wipers turn them on and if they work the relay is good you just switch them out that's not difficult this guy is trying to talk all technical things are not as complicated as his man is trying to make it sound like you're just putting a a different relay put the same numbers on the AC relay this text out the real way can also take you home meter and voltmeter and cast where are the relay plugs into if that is not correct and you're not getting voltage I have seen sometimes where the fuse box the wire under the fuse box has been burnt so if you're not getting power up to the relay you have a burnt wire most likely hello where you put the fuse at but sometimes you have to take the fuse box off and check the wires on the back of the fuse box you can also inspect the wires going away from the fuse box this is. Very simple to do also pressure switches yes there is a vote test you can do or the voltage going to the pressure switch but to my professional experience some time is precious which can be bad you can hook it up to the scanner and half the pressure switch lightly and the pressure switch made malfunction if it is bad on the scanner you can see if this getting voltage all the time but the switch is bad you're not going to get voltage all the time because when you barely tap a pressure switch if it is bad it's not going to show right you also test the wires of the pressure switch there are two wire pressure switches and there are three wire power switches if you're not a professional do not put voltage to the switches because you're not a professional normally what I do an AC job I always change the pressure switch in the system they are inexpensive pressure switches check the voltage to the wires going to the compressor and you can jump start the compressor motor but you need to make sure you are putting the wires in the right place or you can short out the compressor clutch there's a wrong way and a right way 2 bypass to hotwire the pressure clutch so if you're not a professional and you don't know what wire is which don't do it but if you electrical skills you need to find out which wire is the positive and which wire is the negative in order to jump start the compressor to see if it is a compressor problem

[@367cuba1]

Great video!

[@tiitsaul9036]

most definitely good video

[@jokeerlolcow3079]

thank you very much mr. I'm sure I save a couple hundred dollars thank you very very much God bless you I wish it was more people like you

[@dubyajayyo]

7:27 Cable seems tight? You don’t count that as visual inspection because why?

[@SchrodingersBox]

It was eliminated as a possible cause when the pull down switch design was validated as functional

[@dubyajayyo]

Schrodingers Box But didn’t you run that test because you noticed the cable was tight?

[@SchrodingersBox]

Not at all. I did the test so i could map out the switch control design since i didn’t have a wire diagram.

[@GRowe1978]

Matt, I was doing a visual inspection of your visual inspection and you did it wrong. LOL!

[@waltp3373]

I wish I had a dollar for every time somebody said their A/C didn't work & it probably needs a recharge. Everybody's a mechanic until it comes to fixing something.

[@SchrodingersBox]

So true!!

[@fromanabe8639]

I think your video would be much more effective by just telling us what and how you'd check and leave out all the sarcasm and criticisms of DIY'ers. We know we are amatures but like tinkering, saving money, and the feeling we've accomplished something.

[@SchrodingersBox]

Well half the people say to do it more, half say do it less... Since it's my channel I choose to go with the half that says do it more.

[@dharmedo]

You are very knowledgeable but you seem to allow the stage you're on (the internet) dictate you're delivery. Don't worry about and please stop giving into negative comments and people in general. I learned a lot from whatching this video.I had to rewind a few parts due to your "typical hack" comments. My word to you is if you are sharing knowledge do so without the bitter shade throwing. In this world no one knows it all however, all of our knowledge together can move mountains. Thanks again for the informative vídeo.

[@victorglaviano]

I gotta say... People are so freaking sensitive and they're getting free information, wtf, they should be happy for someone who is a professional giving them free information. They shouldn't be a mechanic or work in any shop, they'd be crying in a corner somewhere!

[@crisscreations]

I was like a monkey hunting around for coconuts until I found this video! 😆 15:29 Thanks so much. You probably could use a couple drinks though! Lol

[@coldfinger459sub0]

Using logic then brain contrary to your average mechanic love your video. I can’t believe how many thumbs down you got now we know exactly how many monkeys are out there. 👍 I could tell you’re really frustrated and have no patience with how much idiot repairs you see an air-conditioning on KZbin it shows, me too !. Some of my videos about air-conditioning I talked to same way in frustration at the idiots and monkeys that you do.

[@angiebenedek7039]

Haha... cheers!!!😄😄

[@secretguyoz2]

Hi I just discovered your videos and they seem very informative. In my opinion you should leave the negativity out and just own what you do. By making a point of everything that people might say and will say just eats away at what could be an informative and extremely confident approach. Let the haters hate and allow us to learn from your experiences.. cheers

[@jojonsnow]

Thank you so much for posting this video. I noticed last spring that my ac stopped working in my Nissan Xterra. I went a whole year thinking it was going to be an expensive fix. You helped me trouble shoot it. I first noticed the clutch was not coming on. I got my voltmeter and was about to try to chase down the issue, when i noticed that the AC compressor wasn't even plugged in. I plugged it in and BAM!! AC works perfect! I don't know if a mechanic just forgot to plug it in after doing other work on the engine, or if it was intentional. I hope it was not the latter.

[@fiberscan]

Thanks for showing me your isolation technique. I actually had corrosion on that plug above the clutch. Fixed now.

[@aaronautry1981]

I actually followed this technique in a similar fashion in my newly acquired 2001 Chevy trail blazer with the 4.3. You seemed to have almost the exact same vehicle or at least same looking engine. I have the exact same electrical issue. Previous owner told me it was low on pressure and needed to add some but I had to test all the connectors just to make myself content with that call. Unfortunately, I have three same issue as no power at all 0.00 volts going to the clutch. I had power at the low pressure switches. All my fixes and relays work properly. The pebbled now like he just confirmed for me is there's going to be a break somewhere and that's not going to be easy to find. I almost wish it was only a guide or relay.

[@felishiadarling]

Wow! Your in a very bad mood. Go get some sleep and take a shower. Geeze Love, a Hack

[@craz3y4christ27]

Wow are you kidding?? He filed it didn't he? Sooo the chill, no idea what's wrong thing appeals to you

[@jerryrogers5233]

No bad mood, he's just tired of folks who lack the skill and knowledge he has second guessing him. Plus you should ignore that and appreciate his method.

[@mallow399]

Great Video man! As a refrigeration mechanic i hear "Oh it just needs a little freon" on the daily lol. Most times its just a simple electrical issue

[@bobbyk6585]

Wow, I just discovered your channel. Finally someone who thinks like I do when performing automotive diagnostic procedures. Eager to watch more of your content.

[@SchrodingersBox]

Welcome aboard!

[@HUBBABUBBADOOPYDOOP]

Please answer this: So how did a wire get *cut* "while sitting at a stoplight"? Sounds and smells to me. I retired from the "repair" market years ago- for reasons of cheap, stupid people wanting free work- or trying to haggle my worth, or just plain lying to my face. I don't blame you one bit.

[@SchrodingersBox]

Because, as was mentioned twice in the video quite clearly and also shown on my other video, it was an improperly done butt connection from a previous repair. I have seen this countless times- clean wire breaks like that at terms and connections. If you do this work with any regularity you will see this very often. If you really were in the repair market you would have seen this as well countless times.

[@HUBBABUBBADOOPYDOOP]

Schrodingers Box Yes- in 10 years I saw a few "repairs" that were done before they came into the Shop. Always fun- to hear the stories about who, what, and why. Bird's nests of bread twisters, paper masking tape, Duct tape, Scotch tape, bailing wire. I did hear you mention it looked like a Butt connector might have been used, and had simply broken at the improperly deep cut strip- but there was no view of that broken piece, or of you repairing it in the video. It seemed like you edited that part out. I did not see the "other video" you speak of. I really miss your stunning logic and methodical train of thought. Nice to see you again.

[@SchrodingersBox]

HUBBABUBBA DOOPYDOOP Thanks man- sorry my answer maybe came off as brash but I misinterpreted your comment. There were several people who accused me of cutting the wire for sake of the video- as if I would do that on a customer's car (or need to do that). It pisses me off. My apologies bro.

[@HUBBABUBBADOOPYDOOP]

Forget about it. I got just as disgustipated as you about the whole mess- that's why I left, and started an entirely different career until I retired. Don't worry about what the kids here say- they're like flies on a turd.

[@Rock-Forehead]

Before the cream sits out too long... you must whip it.

[@mrghiax]

Nice to have you back Matt and at your very best too. Looking forward to the new video on your other paid channel. Top draw as always

[@JUSTINMARTINEZ-e6b]

Learning along from your approach procedure thank you very much

[@IronAngel1958]

Why demean others? Still I thank you for this

[@pancake191]

Your channel and content is so good but your ego is very hard to like. Thumbs up for content but you might consider it makes you look really insecure when you start mentioning other mechanics

[@SchrodingersBox]

You will have to choose what is more important then.

[@angelsspirit335]

@@SchrodingersBox i like your knowledge but your personality and sarcasm is not a good thing. your smart but dont have great communicative skills..i have been and instructor for investigative teams and your deductions are instructive but your attitude conflicts with teaching..thank you for your channel regardless

[@SchrodingersBox]

@@angelsspirit335 Beta you make it sound like you are some kind of authority or something and I should do things like you do. I am an instructor too. Of 150K followers and MILLIONS of viewers. You should be asking me how I do it because you have not nearly such a loyalty base from your students.

[@angelsspirit335]

@@SchrodingersBox sorry didnt mean to do anything but express maybe that day of that video you were over emphatic. you know your craft its clear. i didnt take any offense so i dont want you too either. great channel no matter!

[@LP-MeAndMyShadow]

What the...? This guy is Awesome! Anyone who quotes DEVO "When a problem comes along you must whip it" scores honors in my books. My books are great books too. Loves this guys personality, sense of humor and auto knowledge. He whips it real good!

[@enriquemartinez7990]

Thank your man again fantastic video I love them keep up the good work you’re funny you’re awesome you’re the man thank you👀🌿🙏I learn a lot from you from watching your videos fantastical Gracias

[@dreanderson2901]

I love when i have a issue and see you to solve it here. I just started working on my car 3 weeks ago and this is the only thing that makes sense to me Thank you!

[@markmckee6761]

I can't see and I thought I was doing this

[@daviddarby1960]

You should be a Radio Personality on Rock 103 FM lol you rip in to people so calm like...

[@craigherron1203]

I'm here to make this Video cuz I love to here myself rattle on n on .although I appreciate the help

[@SchrodingersBox]

No I am here to eliminate idiocy in this world. I see I need to focus much more on you specifically. If you would THINK for even just a second, if I just wanted to hear myself talk I would not have to make information you found valuable. Idiocy. It's overwhelming.

[@CJ-rj9tg]

Folks like you are what make this country great. I love calling it home since early 80s. I thank You 👨🏻‍🔧

[@CHIBA280CRV]

Fantastic job thanks, where are the links to the other videos ?

[@1975ssnova]

Thank you for posting this. It is going to help me trouble shoot my air conditioning on my silverado. You put it so simply i have the confidence to do this myself now. Thanks! Oh yea.... Dont let the nay sayers get to you. You got a gift , share it!!

[@marclester4056]

I will watch every video you make sir! cant thank you enough.

[@DENicholsAutoBravado]

Exactly.

[@normanbell6611]

You make great videos they're very informative ,thanks keep it up

[@MrRain-hk4zi]

Nice work. A little common sense and the power of observation goes a long way. Good logical approach to troubleshooting on most, if not all mechanical issues, appreciate you sharing the info.

[@mattp5991]

Especially cars from the 90's (like mine) that are now 20+ years old. Resistors and relays have been baked for decades and fail....wiring gets brittle and fails.

[@Dtwaime]

My name David from Houston,tx I just want to say thank you.... My gal Acura ac went out... I don't know much about ac system until I saw your video... My gal was panicking and about to call a mechanic...I ask her to let me check it out...It was a brown fuse... I just imagine how someone could be paying much, for something very simple... thanks

[@troutjunkie7330]

Glad to see you posting again. I miss your videos the most out of all the KZbinrs.

[@sirMadacc]

15:30 you did a great job.

[@kenbarnett8189]

Rev up your engines! lol - First 5 minutes of nothing but rambling on about nothing! The first thing I and most people do is go to is the fuse box and swap relays, duh! Not hounding or arm chair diagnosing, but that sort of diagnosis is simple and yes it is obvious to just about everyone!

[@SchrodingersBox]

Vs scotty rambling about nothing for every video. life is simple for you when you’re just a basic bitch ain’t it? Ignorance is definitely bliss.