WOW this was a cool case study, Bernie! Now my question is why that car needed a fuel line repair to begin with? And that is the biggest glass beaker I have seen in my entire life haha! You're a mad scientist, Bernie!! :)

I just wanna know who would dislike a video like this. The time and dedication ATS puts into their videos is second to none.

This is, by far, the most impressive diagnostic video I have ever seen. I can assure you that 99% of all mechanics don't come close to this. Most everyone is a part thrower by comparison. I wish all mechanics learned things at an engineering level.

Measuring the pump rpm in relationship to back pressure in the line is absolutely genius, never seen anything like it. Seriously impressive.

Can you imagine having Bernie as a instructor from day one like the 1st day that you started learning anything to do with mechanics or automobiles ? Almost everything that he talks about is stated as an absolute because he knows Almost everything there is to know about cars. Anyone that has been in the field for a good amount of time knows that there is no way Humanly possible to know everything about every car, But I think that Bernie knows as much as anyone could possibly know about Automobiles. I just keep coming back to how many things I learned the hard wayAs a junior tech... How many things I learned That were wrong and I had to go back and rewrite this information in my head which is not easy to do. So I can only imagine if from day one I weren't everything the correct way and had everything explained down to the smallest detail on theory of operation, why components fail the way they do etc... It blows my mind every time I watch one of his videos the amount of information that he has Is incredible. I guess that is the product of i think about 35 years of experience put into a 30 or 45 minute video. Thank you Bernie for the time you put into these videos, and thank you for your contribution to the automotive field as a whole. I know there's thousands of techs who have benefited from your instruction and knowledge.

Never gets old. This guy is a legend in our books

Great job!!..human would live longer if our health care doctors were as great as this car doctor.

I'm glad you did the lab portion at the end. That's when I clued in most.

Its going to take me 8 months just to take this in. Excellent job.

2 HP pumps, 2 LP pumps, 1 PCM and 3 shops is astounding. Superb job Bernie, showing us how to test and not guess. Thankyou for taking the time to make it for us all so we can learn from you

What an amazing teacher Bernie Is. He really has a passion for what he does and I can't thank him enough.

A simple fix can be the hardest to find. Bernie’s though process is amazing, all very logical stuff but I would never think of them. Absolutely brilliant, thank you so much Bernie 🙏🙏👍

Iam glad that 40 years ago my instructor only tought me 1 thing and that was to exhaust all the basics twice before installing parts Guess they are not teaching that anymore

WOW. Measuring pump speed can find a restriction. You sir are a legend.

This is what happens when you turn CAVEMEN with stones and spears loose on a SWISS WATCH ! It NEVER ends well ! Thanks Bernie . 👍

Absolutely amazing! His ability to think outside of the box is truly remarkable

There was a recall over improperly routed fuel line causing restrictions on a model or 2 😉 Awesome channel.

Top notch diagnosis. I always think of your motto when working on a tough car. Get the data, interpret the data, data drives the next test. Listen to the data!

You're a genius Bernie!

Absolutely fascinating! My eyes are widened to what all can be seen in a waveform! Where would we be without people like you sharing this? I am so thankful to be able to learn from all your time and effort and years of experience Bernie! You are helping to train the next generation of techs who want to get the job done, and get it done right!! Much appreciated.

I like this channel because Bernie consistently uses the scope and explains in great detail which really drives it home. It's the understanding of mechanical force that creates the wave that he knows so well. This is better than watching a movie.

Bernie, I Iove these videos, unfortunately I don't know a single mechanic that would put this kind of time in on a job anymore.

every time i watch you work, bernie, i re-learn information i forgot and learn something new that i didnt know. i love your passion for finding problems in cars. i can relate to finding an unexpected issue and going "thats cool"

Bernie, words fail me, but not you. The way you gathered data! The 'understanding' from the data! And the discussion of DC motors, using powers and grounds is priceless. I would say 'one of your best ever' but heck, they're all good. So, when the high pressure pump output dropped did the hp pump go into cavitation because of the low input pressure?

Mr. Bernie, I really hope one day you write a comprehensive book sharing every single piece of knowledge you have .

The man the myth the legend of diagnostics

Brilliant case study. Thank you again Bernie for continuing to teach.

Fascinating case study! Excellent camera work as well. Thanks!

Great Case Study…If the first shop just went back to basics and checked if the high pressure pump was getting what it needed, conduct a pressure and volume test like you did, well, I don’t have to say it. I started my career in the late 80s when we did a fuel volume test at the carburetor, rule of thumb was 1/2 pint in 15 seconds. Overall, the other shops pain was our gain though.

As always Bernie, another great learning session, thank you ! 👍

the little demo set you starting at 36:00 this is why i love this channel. you can feel the passion for it and it makes learning much more exciting

What a great diagnostic lesson! Few techs have the knowledge or skills to troubleshoot electrical/electronic issues. A scan tool is not enough to always pinpoint where the problem lies. Until we know how to use a oscilloscope we are just running around in circles. You showed how the other shops simply assumed that it was a component that was at fault. Your logical approach was able to verify what was working properly & what was not. A great video that I learned a lot from!

Thanks for sharing your methods Bernie, always in awe at your diagnostic process. can't wait for the next one. stay safe

This poor car had parts thrown at it all because of mechanics who worked on it creating the problems. Not sure why anyone would try to repair a fuel line... I can't imagine the liability of your repair failing. Should have just replaced the line the correct way the first time. One crazy case study. Thank you ! 💪

Great diagnosis, Bernie! Thanks for the extra info & explanation!!

Amazing video. Thank you for spending all the time to put this together.

Great GDI diagnosis Bernie! Thank you for always taking the time to teach in your videos. Truly outstanding!

I only have two thumbs, if I had a million you would have gotten every singel one of them! Many many thanks from Sweden!

It seems safe to say that, since the fuel rail pressure sensor was dropping out, the ECM was making up its own value for the fuel rail pressure at times, based on other data and what it "expected" the pressure to be. Just shows that scan tools can burn you sometimes with substituted values if you don't look deeper into the problem.

Thanks Bernie for another great video. I very much appreciate your effort to share your knowledge with other techs.

Tanks for sharing Bernie ! I appreciate and use your knowledge daily.

Bernie , du bist ein techniker vor dem ich hohe achtung habe. Deine diagnoseansätze sind genial.dir alles gute, vor allem gute gesundheit , immer.dein kameramann muß noch viel lernen.gerade spannende parameter von dir bekommt er nicht gut abgebildet.bernie bleib gesund, das ist das wichtigste!!!

The dedication to your craft is amazing. Sharing this knowledge like this shows how much you care about our trade. Thanks for all you do.

Thank your for time and another valuable lesson Mr.Thompson!True master in craft!

This was a good one!! The pump not speeding up to correspond with the pressure drop was the key. Super sleuth!!

Awesome job! Thanks for sharing your incredible knowledge with us!!!

I cannot express in words my gratitude for you sharing your knowledge thank you so very much till next time

Absolutely brilliant. Thanks for the great explanation and your time!

Great video!! And to the videographer thank you too! Keep em coming please!

The lecture, was a top level. And of course, the diagnosis.

Congratulations this was the only video I've seen with such an amazing detail. Helped me a lot. We'll done. Thank you

A really great case study Bernie and would look forward to you doing some lectures. It wouldn't matter what the topic is because you're a great teacher and would make any subject interesting. Have a great week!

Great explanation and approach to the problem, thank you very much for sharing your knowledge

Bernie That was an absolute pleasure to watch. Thank you for helping to mould my diagnostic mind. Your one of the greats

Excellent info Thank you very much. Super awesome to know the ground mirrors the current!

Awesome detective work, Bernie.

Never a disappointment! Very helpful information as always.

Thanks for sharing your expertise. I’ve learned something from every one of your videos. I wonder who gave this a thumbs down…Scotty Kilmer?

Awesome!! Great lesson at the end too. You never cease to amaze me. You definitely know your stuff. To diagnose the restriction from the driver seat is inspiring. I'm in awe!

This guy is awesome. Awesome Diagnosis

Very impressive way to diagnose this problem or any other problem. I enjoy all Bernie's videos and I am learn a lot from each video.

Thanks Bernie for the video and tips! Great work as always.

Great case study Bernie enjoyed every minute and learnt some stuff too

Great demonstration and troubleshooting.

Brilliant analysis!Thank U for putting in the time and effort to make this video!

I figured it was a lift pump issue from the beginning , but did not see it being a fuel line restriction . Good diagnoses Bernie!

MASTER CLASS Bernie thanks as always for sharing your knowledge

Always waiting for your videos. it knowledgeable. keep those videos coming in . Great teaching knowledge. and bless you for sharing your taught process .

as always your diagnostic process is awsome.

this is incredible, the amount of work put in to teach and demonstrate these concepts thoroughly is beyond praise. every time a new video is made the world becomes a better place. imagine how many people will learn from this, including myself. never really looked at pump rpm difference with engine idling vs under load, only average current.

The best scope, the best tech. Bernie is the Master tech. Great explanation, great techniques & great scope.

These guys make money sponsor ships and ad cents. Things are so expensive now after the pandemic no one can afford to work for free! Thanks for the awesome video for sure!!

Bernie, you will be AWESOME in my book always great tool and what a teacher u are in this profession thanks for sharing ur knowledge really appreciated as always and hopefully one day will be able to purchase the ATS ESCOPE ELITE love the tool just by watching you how to diagnose really impressive thank you from Ontario Canada. J Georges

Good information, thanks for your hard work and dedication to teaching.

Very interesting diagnosis and explanation :) I have 2016 Kia Rio as well, but mine is Euro spec 1,25 litre 5-door Hatchback. So far no problems, bought it new back in 2016.

A lot of the time, it’s not just one thing causing an issue. Great thorough process. Your knowledge is worth it’s weight in gold. Peace

masterpiece...same concept with relative compression

Un diagnóstico excelente, dos Problemas difíciles de encontrar, pero con el conocimiento y equipo correcto, es posible! Excelente!

Thanks Bernie! I learned a lot on this one.

Watching a master at work 👍

Bernie great video great job at diagnosing this problem

The absolute jedi master of automotive tests. These you tube videos have revolutionised automotive training and they are FREE🤫😎. Thankyou kind sir👍

flow/pressure relationship showing there. anytime you have a pressure problem you NEED to test flow. same for hydraulic systems on equipment. nice to see how the scope worked to verify prior to physically checking flow.

Mind blown...also can't believe this is free to watch and try to capture an ounce of knowledge from...well, perhaps the most knowledgeable mechanic ever? Love these vids...especially the "this car has been to several shops with parts replaced, now it's time to actually fix this vehicle".

As usual you simplified a fault that was tricky to find, again I have learnt that you need to be systematic when diagnosing a problem, Thank you

I love the voice over, HG😊

Awesome diagnostic vid, thank you sir.

Excelente caso de estudio , profesor usted es una ciencia en diagnóstico, profundos conocimientos, sencillos y humildad, gracias por compartir sus conocimientos con el gremio , mil gracias profe !!!!!

Very good case study, you awesome MR BERNIE, thanks to teaching us, we always learn something from you, thinking to get your scope, looks very professional with a lot of things on it. once again, thanks for sharing 🙋🏻‍♂️👍

Thank you for these videos Bernie

Nice video! I appreciate the class at the end Bernie

I love this great technical learning vid. I am miles behind your expertise but with common sense and a Good understanding of the combustion process I always win and solve the problem. I thought looking at the data you would find blocked or damaged fuel filter or crushed fuel line.

That ats tool looks awesome

great case study Bernie thank you

Awesome diagnosis. Bernie it will be so helpful if the Escan graph mode had a cursor on all the pids. One that you can move back and forth to see the glitch, and if you move it on one pid it moves it in all on the same spot so we know that at that moment of the glitch what was the values on the rest of the pids.

Had one last week.... The air tube rubbed the harness and split the wires going to the fuel rail pressure system. Fixed the wire and good

Thanks, master Bernie 👍🏽 from Peru

Oh boy, great case study. Did the shop inform you of the history behind this vehicle ? And if a car with a fuel pump control module happens to come along maybe we can take a look at that . Thanks so much for your time. I realize you are demonstrating your product , but you go above and beyond by explaining the logical diagnostic process that leads to the correct repair. Again thanks.

Always on spot! Awesome

you are so great!!! i really like the way explained it.god bless you sir.