Ford Fusion No A/C, the other shop couldn't fix it! 

Get an ArtiDiag Pro Here: amzn.to/4660NFf and the decade box here: amzn.to/3Z62e4b

You always need to try 3 pcm’s before you know it’s not the pcm.

Epic rant starting 15:00 ❤ sharing this one for sure! Thank you Keith

Just found you thru SMA. Eric O has good words. I wish I had your training and knowledge 40 years ago then I could have been a better tech. Diagnostics is about mind set and workflow. Learning new things keep me young so Mr O and now your site should keep me entertained and alive for years to come. 😁

I 100% appreciate the "rant". It isn't a rant, it's the truth. The wrong people are typically involved in fixing cars.

Thank you so much L1, I have a 2007 Lincoln MKZ. Same story with me I paid a shop almost $1800 to fix my ac, I purchased a TopDon artidiag. Went to the live Data that you showed us, and sure enough the brand new motorcraft ac transducer switch was reading 1.0V with 0-6 psi. I found my original ac switch that was removed originally. I plugged it in and my AC was fixed!!. Thanks to you guys, bless you all!. It now reads 2.6V and 200psi, AC blowing ice cold non stop now. The shop replaced the ac compressor and switch. Thank you!! It’s the ac transducer switch!

I immediately noticed the 0 psi on the scanner, but I had no idea of the issue with the sensors. Great information as always Keith.

It’s not always the tech. Normally it’s the environment they have to work in. If you’re a tech in an even moderately busy shop, there is no tolerance for anything more than a cursory diagnosis before you had better come up with a solution. It doesn’t matter how badass of a diagnostic genius you are in that situation.

Keith, Found you today. Just wished I was younger. 67 next week. Preach it!

Thanks for everything you do for our industry

I absolutely love the passion!!! Awesome advice !

Great video, great information. Appreciate everything you do for our industry

Keep up the hard work man we feel your frustration it's tough but we need guys like you spreading knowledge

Your story is spot on and your enthusiasm great

Hello Keith - Stumbled across your rant and enjoyed it so much that i'm going to head over to L1 and sign up for some of your training to see what i can learn. Actually, its funny, i started encountering the same vehicle issues that you mentioned so much with friends and family, that i started fixing cars on the side here in NC when i have spare time; mainly electrical issues since i already have that background. Thinking of even starting my own business in a year or so as i head into semi-retirement. Thanks for the content.

Great video this in my opinion the best video you have uploaded. i am one of the old timer mechanics that had at 60 years old learn about scopes and scanners but you and several other you tubers have helped me more than you will ever know thanks for taking the time to share this to us who are proud to see in. I only know one other shop in my area that uses a scope.

THE hardest part of diagnostics is remembering COMMON SENSE! (LOGIC) Sometimes it's so easy it "CAN'T " be that simple! "Diagnostics" ARE EASY as long as you KNOW what to look AT, what to look FOR, and exactly HOW its supposed to work.

Very interesting. Great job on coming up with a fix. Could you possibly draw a little schematic of how the diode and resistor get tied in and why the diode is necessary. I know you mentioned it but struggling to visualize the circuit and how it’s doing that.

I have learned so much from you and others. The rant was awesome because it is true. I get the same issue even more now being mobile " with pricing, mostly other shops!" I have even tried to educate some of these techs and only half will take the FREE lesson, but it does get frustrating. Love L1 , keep up the great work brotha, I'm sure you will figure out a way like you always do! Till the next time stay awesome! Hope to see you guys at STX

you hit the nail on the head with that rant ,i love getting everyone's else's work and actually fixing it, then getting recommendations for great work not the price

I am not far from Tulsa. Glad your there helping everyone. Keep it up. I enjoy your videos! Tom

I understand and appreciate your frustration. The practical application of circuit modification to correct a manufacturer's defect is genius, knowledge and skill. Well done sir.

You are my favorite teacher!! The cheaps are not the best but the people don't want to spend the money! Thank you from las vegas

I love this video. I am a dealer technician for 3 years now, I need alot of training. So I'm going to your website to check out your training.

I feel your frustration! That resistor box is handy, I use it all the time.

Well I love learning the fix on something we talked about in the classes, as I remember that question coming up. The fact is that if shops had to eat the labor and parts they put on that do not fix a car they would ether stop working on hard cars or train guys better. That is our policy on part and labor. So I get in my own pocket very quick. Great job and thanks for letting me know this issue, as I noticed the pressure reading immediately, but had not seen the issue, and now I need a new tool, as I don’t have a decade box. See you at ASTE.

Spicy! Great video Keith.

I find your work interesting and I do watch SMA . I spent over 40 years in the electronics industry. 15 of those years for Motorola Canada as a bench tech. Other shops would replace a circuit board sent it to me and I would trouble shoot to the component, repair and send the board back for their spares.

Just think of it this way Keith it's making you and your shop tons of money because other shops can't fix the problem. However I do realize how that makes us look as techs in the public eye when they parts cannon the vehicle... Great video! Love the channel!

Hi Keith, Just stumbled on your channel. Just wanted to say thanks for creating interesting content. I like your style. What's up from Norway 🙂👍🏽

Muskogee resident here, love the channel

THANK YOU ! You have no idea how many times I have had to tell customers they don't need a PCM. They call for an estimate to replace their PCM because the "other guy" said it was bad. Like you, I always insist on diagnostics first otherwise I am not interested in the job. I started automotive college in '84. First job in '86. First ASE Certifications '88. I can still count on 2 hands (just fingers / no toes yet) the number of times that the problem was actually the ECM/PCM. Even at that, most of the time the damage to the ECM/PCM had an external cause.

Thanks for the shout out lol. Great information as always. Thanks Keith

Great video...keep up the good work Sir

I agree with you. I’m a mobile tech snd i go to a lot of shops and 99% don’t know anything about electricity or electronics. But i make the money. Most people are ignorant and don’t wanna learn and improve their skills. Great video. See you on the next video 👍

Great fix. Pay for your knowledge not you time. You are invaluable.

Great video, Came for the rant and stayed for the diag! That is crazy that you can't get the correct part, great info to know, I've never seen this issue yet.

Eric o sent me to you. Keep the rants up. Lol I love them. It's coming from passion and not belittling. As a 12 year professional h.d. tech and a 7 year youtube certified diag tech it's upsetting seeing the basics being missed and $$$$ being sent without cause

Amazing rant, Keith 😎👍

Great video Keith!

Great video!

KEITH, YOU ROCK BROTHER AWESOME VIDEO AS ALWAYS THANKS FOR SHARING.CHEEEEEEERS FROM CANADA, ONTARIO

This is really good info. I've never seen this problem before, can't believe that you can't get pressure transducers for those cars that are correct. Might need to get a few OEMs from the picknpull

I swapped a 5.3 into a Colorado and used a Holley terminator to run the truck, to make ignition and AC work I had to use low voltage relays to make ignition work. Same with the A/C put a temp sensor in the EVAP and was able to make the clutch cycle, works great. But Holley you can make custom scales for aftermarket transducers. Haven’t played enough with to figure it out.. like the video good to know , I’ll be troubleshooting in my shop a little different now!!!

Love this. 😅 you're hilarious. Great info, I'll have to keep that in mind about the pressure transducer.

I Agee with you on the theory that training and knowledge is the key. And you hit it on the head with a comment you said . Especially with me. I can wrench but I don't get the parameters I don't have the ability to make my brain go that way. Techs today can't fix older cars and techs of yesterday can't understand today's cars.

Love the rant!! 😂😂 Preach on Keith

Super Awesome rant! I totally agree with you and feel your pain! It gets frustrating when its all you get day in and day out and you for some reason become the "bad guy".....thanks for sharing and staying truthful , p.s. I missed the "cuss" so couldn't have been too bad.

I did Noticed immediately the 0 psi , but your statement about trying a know good part first in this case , who wouldn’t have replaced the transducer then rechecked the Pid . Also in a busy Flat rate scenario ,makes it hard for the diagnostic Tech ,all management sees is $$$. Great info on this car (:

Thanks! Please accept this small token of my appreciation for you!!, thanks to your video, the only one on RU-vid. Bless you and your family.

Great Job !!!

I recently bought a Cen-Tech automotive multi-meter/tach on clearance at "the dreaded" Harbor Freight for $42 and it works great! I also have one of the more expensive Zurich OBD II scanners from the Freight. Again, it works fine for me. My point is that, as you said, a high dollar scan tool isn't always necessary, especially for DIYers like me that... A) Can't afford one. And... B) And more importantly, don't have a clue how to use one lol! I mostly work on OBD I and OBD NONE stuff but, as time goes on, I'm being dragged (kicking and screaming!) into the OBD II world. I can still rebuild and tune a carburetor AND use a timing light though lol!

love the attitude the rant was fab great stuff man just found your channel ( bythe way Im in Wales the best part of the UK LOL/ you have been to the rest now you have come to the best in west Wales 😃😃🤣🤣😎😎😆😆

Techs like this are these could solve the early model 2000s Gm security issues

Love it! Keep up the great vids

Description and operation . Should be at the top of the list.

Great video Keith.

HI Keith! Thank you for making these great and informative videos. so much respect for you. I can say I share similar excitement and enthusiasm as you in this field. But i got colleagues techs at work who would rather get really offended if i say something similar (i paid a high price offending them) You can say stuff like this if you are shop owner but in a corporate environment as an employee NOT. Btw Do you have online courses as well? Or do you record sessions? I live and work in Norway!

Forking love this channel.

👍 thanks for sharing my friend!

Thanks for this one ,

great video

This is a great video!

So much going on in this video but love it! I have to agree that in my experience (as a customer) I've encountered techs that are just plain lazy and/or can't afford diagnostic training. It is very frustrating as a customer to have a vehicle in a shop that comes out "fixed" only to find out they changed a part and I still have the same issue. As you may remember, that's why I'm a DIY'er who fixes his own vehicles but learns from people like you.

I feel your pain and frustration. I fixed a Nissan and the customer almost called the cops on me because he didn’t understand that he’s paying for the knowledge and sleepless nights on training. That’s why now I look at my business as to what’s best for my sanity and sometimes I refuse work from a customer that ask if diagnostics is free. I send them straight to the dealer. I even tell them to go into RU-vid and try to figure it out.

Thank you for your excellent presentation of the diagnostic process! What is the purpose of diode ? Is the transducer a pressure dependant resistor as part of a voltage divider circuit or is it a module with a variable voltage output? Many thanks and I very much look forward to discovering your other videos! Of I understood correctly, the new pressure transducer is

I love u man ....tell them! Especially my people from Ghana west Africa

The last 4 minutes of this video alone earns it the thumbs up.

Can you post a wiring diagram of the sensor with the resistor and diode inserted? That would be helpful. Thanks!

Such a great rant

Love this

As a suggestion for future pressure sensor mods, it may be easier and more reliable to modify the Gnd connection to the sensor. By elevating the 0v(Gnd) wire of the sensor, your signal out will be proportionally higher. Potentially you can use a simple voltage divider circuit with 2 resistors in series (+5v and 0v on the ends, and the pressure sensor ground rewired to the center between the resistors). 👍

i went to junkyard and got me one .when i find out it is reading lower psi than the gauge ..but you are correct the other shop that they send it to us they got there senor from Orielly .it did not work then they got it from Ford Dealership and it did not work .they send it to us to do deep diagnosis ...what i like on this Video is what you said at the beginning. You are not paying for time only .

Going off on the alternator. Found out after 3 different tech put alternator on a 05 escape the aftermarket was using the model year older regulator issue with that year before was not computer driven the year I was working with was computer driven went to ford for the alternator before I went with an pcm (pcm was not receiving an input so was not sending out an output) to find out that an oem alternator from ford fixed out undercharging and. Over charging issue was ether not charger or 18 volt charging.

Static pressure does not indicate system charge. It is a function of the refrigerant's saturation point and the external temperature. RU-vid won't let me post the URL, but I'm looking at a data capture right now on ScanShare, of a 2022 Hyundai Santa Fe that has 20 psi of static pressure with a full system. Pretty sure you know why that is so. I've found that the best way to explain it is to start with "time" stopped and a system full of liquid refrigerant. There is ZERO pressure. Now start the clock (time) and explain how and why the pressure rises and then why it stops. Pressure sensors always linear? That has not been my observation. Training *power tip*... don't yell at your audience 🙂

Great 👍 video

Good one about the transducer. You had to know it, or at least notice something was wrong with the pressure reading. I also have non-working alternators for $69.95 😂 Thanks for sharing..

LOVE THIS VIDEO... 100% Please post more videos like this Diag Stuff. LOL

always have used cheap meters for 40 years. finally bought a fluke. chepo meters work fine

100% AGREE on your rant. I'm a diag tech with a shop full of B techs trying to get them trained on diagnostics. most of the time they are guessing because they don't understand how it works.

Ford is getting good at this. Just like with their alternators for the older 500’s and such that had the wrong voltage regulators in them. I think it was Napa who was the only place we could consistently get an alternator with the proper regulator in it. 😂 Sometimes you just have to laugh at the incompetence in the Industry including the manufacturers. I just had a car in the shop from a local ford dealership that they sent over with trim panels loose everywhere claiming it had an electrical problem somewhere because the key fobs didn’t work unless in the pocket. They already tried a new key fob and said that wasn’t the problem. After checking it out and seeing that the antennas worked fine I called them with a part number for a key fob and told them to order it and after arguing with me for a bit that it wasn’t the issue they reluctantly did so. Programmed the CORRECT key fob to the car and when I told them it was fixed it’s amazing how fast they change tunes to being like awe shucks man that’s crazy. 😂 They bought the car from another dealer with the wrong fob and instead of looking up the vin and ordering another one they just grabbed a new one that was the same incorrect fob that came with it. The car didn’t have remote start and the key fobs were the wrong frequency. It’s frustrating when they bring you the car and then act like they doubt what you tell them. The lack of trained techs is a worldwide issue and all of the dealerships are suffering just as bad as the independents. It doesn’t help that they push them to flow charts and stuff either instead of teaching them an electrical foundation and how to think out problems critically. It sucks for the industry as a whole but it just increases the value for techs like us out there who’ve put in the effort to keep up with the ever changing technology and invest in the tools to get the job done no matter the hurdle. I’m constantly preaching to techs about taking advantage of all of the resources we have online these days to really learn and make themselves an asset that everybody wants hire. Anyone that’s willing to put in the work to learn can make themselves a six figure tech easily and bust a lot less knuckles in the process!

I have the same issues with people that you do, somehow they think I'm responsible for their former bad experiences

Do any other Ford models have this issue? A friend has a truck that the shops have "tried everything", and this video made me wonder about other models

I bought a TOPDON PHOENIX LITE just check on my truck too keep up on it 2020 Ford F150 XL 3.3 4wd love it

I agree with you. I would prefer a good mechanic that will do a good diagnostic and fix the problem the first time.

i like that resistance box, where did you get it keith ? . also i have a truck that dealer said needed the engine customer brough it to my shop but the noise was not the engine it was the catalytic converter, this confirms what you said even the dealers mess up really bad

Wish that I had your knowledge, because then I could figure out what is wrong with my 94 dodge ram. Any ideas will be considered

Absolutely correct

You are awesome 👌

Safe to assume that this Motorcraft part number is used in quite a few other vehicles? If so, seems Ford has a potential problem on their hands with future AC repairs.

I support this message!

Hey Keith, may I ask if you can send a picture of the wire loom you made with the size of the resister and diot

I agree with u so much

thats crazy how even the factory Motorcraft senser has an eschewed reading

Amen brother

100% agree !!!! My new saying thanks for the gravy 🤣🤣🤣

You hit the nail on the head. There are great nuts and bolts techs who are totally clueless on electrical/ electronic systems. The system that said they have the aptitude to repair cars is flawed. I tried to tell our local vo-tech leadership that cars have changed in the fifty years I was in business. There are too few of us that grasp this to teach the other 75% or more who don’t. It’s not most of those techs fault. There really needs to be a separate vocation that separates “turning wrenches “ from “scope/ DVOM operators “. I retired, now fix mowers and golf carts for a nuts/bolts guy. He only knows parts cannon and SWAG method to fix electrical issues. Mowers have EFI now and he is totally clueless. I’ve given up trying to teach him. He just stares blankly at scope patterns. My rant is over. I don’t have a clue how to go about fixing this technology shortcomings gap in technicians today. Scares me for our future. I’m 70 and getting a little too old to lean over my own car now.

Haha, great rant. I hear ya, see it in construction equipment world as well where parts are 2-6 times as much as auto.

I think one thing that fails to be brought up is the customers unwillingness to pay for diagnosis,”autozone does that for free,why should I pay” is a commen response when quoting diagnosis unfortunently,so then they go to the shop that doesn’t charge diagnosis and get what they pay for,end up back to you when it’s still not fixed and now have no money to diagnose or fix it, it’s an endless cycle I see where my shop is.

well said! not payin for my time paying for my knowledge!!!! so true!! 300 bucks for a diag is cheaper then a unessecary pcm!!!