Common Rail Diesel - No Start Fuel System Basics

[@jbthestoner5504]

This is the kind of information people will pay big money for, gotta love someone doing it on KZbin to help everyone.

[@robertmorgan8536]

Amazing! You've raised the bar on KZbin instructional videos. Thank you.

[@joetappe6116]

I've been an automotive, light duty diesel technician for 27 years, plus raised up in the car business. Been doing Diesel work for the last 12 years of my career. This video Is Awesome. Very Basic and a great video. I enjoy watching People that are intelligent of this kind of work.

[@wedley1000]

joe do u mess with 6.7 powerstroke

[@allanconner1406]

I totally agree! I entered the world of mechanics as a young boy as early as I can remember watching my Dad. He built and drove his own racing cars. He ran dirt, asphalt flat and grade. Before NASCAR he built and ran drag cars right out of the Army. But decided on NASCAR for the longterm. I was always in the shop watching, learning and taking things apart and figuring out how to put them back together again. I'm 57 years young now and have never taken a break from the mechanical world. Over the years I've achieved a lot of goals and became a self taught professional mechanic with a good reputation successfully owning my own repair shop. I can definitely spot another professional when I see one and your very intelligent. Outstanding job on this video explaining procedures to follow in diagnostics troubleshooting techniques. Thank you for contributing this video.

[@bengrillet]

Absolutely superb guide to the system. So clearly and patiently explained that, even as an amateur DIY mechanic, I was able to get to grips with the information and get my head around how to approach a diagnosis of my crank-no-start problem. Useful even just to help me discuss a diagnosis with my mechanic. Real impressive. You are a natural teacher, respect.

[@mathiasdamsgaard4913]

I Dont really comment often, but just know you helped a Scania apprentice a lot. Thank You from Denmark !!

[@anywaysamhutsa]

the simplicity makes it easier for one to want to be a diesel mechanic.

[@silas8573]

you are the professor bro. thank you so much for making this video. i'm a non-mechanic trying to resurrect a cummins/onan generator and this video gave me the jump start i needed

[@RockinBarBRanch]

Loved your discussion of the overall workings of the system. I have a common rail 5.9 Cummins and it is now 20 plus years old; therefore, diagnostics will being be more and more important. Thank you!

[@hunterjackson2651]

Great Video! I am inexperienced with Diesels, this video is actually organized and informative while not oversimplifying stuff. Keep up the great work man!

[@kevinmartin9432]

That's a better explanation of the system than any of the courses I have ever been on 😎

[@NewLevelAuto]

I know you'll wonder how I finished the whole video in 42 minutes ... and the answer is 1.5x speed 😁. Great video man. I even learned a few things

[@dreece2000]

Needed this simple comment.

[@glenquagmire4232]

Played it on 2x speed

[@georgevesely1314]

Wow! I feel a little less stupid knowing about diesel systems. I've watched this video twice and made plenty of notes. I reckon by the time I watch this video for the fifth time I should know something. I'm looking forward to another basic diesel education. Keep them coming. Great work Chris.

[@stuungar3390]

Yep, very thorough

[@padraiggalvin2807]

Wow just got to say really great video. you covered so much here and in such a good systematic way and easy to under stand. Only two things i could add here, for a non starting diesel engine are 1 cranking speed which you covered by saying battery but also starter motors can be the problem. but some diesel engines need a minimum crank speed to start. and 2 is EGR valves, if these are stuck in open position they can stop engine starting as the air/fuel mixture is compromised/disrupted. Thanks again for the great video

[@garyjones783]

Excellent way to present the number of possibilities involved with the diesel fuel system. Enjoyed your sensibility and respect towards the art of the engine vs the vulgarian F bomb bad boy way. Classic!!!

[@jundelacruz7641]

Thank you for your very clear explanation about fuel system. Really enjoyed & appreciate it! Very professional just like you're a professor in a classroom. I am from the Philippines. Mabuhay ka!

[@m998hmmwv7]

Thank you so much for posting this video in such a way that I could understand and use the information. The time it took to make and the completeness in pictures and explanation is priceless. Again thank you very much for your time and help.

[@lambjohn9547]

Some people act like they know what they're talking about there is no doubt that you do and that you are the man I'm so glad I found you saving me from a nightmare of bad Direction I will be subscribing

[@styga1969]

Good video of explanation. You gave me a flashback on those ford 6.0’s (sick O’s ) with those high pressure oil pumps. .. 1988-2015 on those diesels … got out of that and glad I did.

[@londzale3163]

From my experience, trucks that have primary fuel filter and a secondary fuel filter or fuel water separator never seem to have fuel related issues. As long as you change them after every pm service you’re good. It’s the trucks that only have one filter or separator that have a lot fuel system problems

[@mamadikmbajobajo7903]

It is indeed a fantastic lectures. My coming across your lecture coinsided with having fault of starting failure with my 2010 hyumdai tucson diesel. Your lecture enable me to successfully did a lot of test. Where I am now to know whether or not my rail pressure sensor/pressure regulator are good.

[@rayocaballo6122]

What a great video passing on knowledge is the greatest gift you can give

[@brunobarrie6089]

i've been looking for my perfect learning skills through any way to go but this guy's page gab my full attention (sience diagnotic is my best and easy point to learn fast as well too) thank you

[@KerryDavidson-xj2ft]

What can be the problem when it will run for 20 minutes or so, then die for a half hour?

[@myndcrym1]

What a great presentation. Clear and concise. You sir are a great teacher!

[@richlee5578]

Best explanation ever wis I’d seen this video before I had trouble with a diesel ford mondeo UK crank but no start I ended up putting it into a garage who systematically ripped me off never got it running and I’ve been working on cars for years 😂but mention diesel’s over here and you can see £ signs in their eyes but really when you look at a diesel if it’s not running 9 out of 10 it’s the fuel thanks for the info

[@ebutuoyssa]

Excellent presentation. Out of all the wealth of information you just shared -for me- the key to the diagnostic kingdom you mentioned is- "If your low pressure side isn't delivering sufficient pressure, the high pressure side can not make it's required pressure" (paraphrased). Jumping right into injector failure mode rather than considering first that the issue may be something as simple as an undetectable air leak, will destroy your credibility and break your business/wallet.. I replaced my OEM (piss poor and leak prone system) with a positive pressure (lift) in tank component and a primer blank out unit after 3 weeks of spanking around with every connection and potential air leak -with only 1 one possible leak point found. When you do the math-it's much cheaper to just junk the stock fuel delivery system, and upgrade to a quality USA made lift system. Final diagnostic note... This vehicle was found to have lost the CP3 lift pump capability putting it in a "no start condition". Problem was overridden via the lift pump installation. Thank you Sir.

[@codysautodiagnosticsprogra8706]

Excellent work Chris!! Absolutely love your knowledge and presentation. Keep up the great work.

[@ScienceOfDiagnostics]

I appreciate it Cody. You've been working hard to keep me motivated and putting out at least some content and I appreciate it on behalf of the viewers. I definitely need to focus more on getting good content out to the people. I'm not good at many things but I do enjoy passing on the tiny bit I know if it helps people.

[@MrGodsking]

@@ScienceOfDiagnostics hi im in ireland i have fiat ducato 2.8 jtd year 2002,new pump in tank new fuel lines new batteries and starter,i cant get fuel at the rail but she fires right off with easy start have you any ideas

[@johnshere4922]

Watched the video in full very good explanation of the total system. I can tell you are not reading from a book and got experience. Thanks, J S.

[@garymorrison4675]

Great info. I have the t1n 2005 sprinter with low rail pressure . Thanks to your video i have a better understanding of the fuel rail system and have made a list to narrow down the problem

[@chrissein632]

Incredibly well explained. Great information!

[@deezplace]

Great vid. Thanks a heap. My diesel 4x4 is Crank no start, now I have methodology for figuring out what’s up. I suspected fuel but nice to know how and where to look / trace the flows.

[@nickayivor8432]

Science of Diagnostic KNOWLEDGEABLE Great tutorial brilliant video thank you very much helpful video Science of Diagnostic. Pauly 's Auto was right about this channel thank you Pauly 's Auto From Nick Ayivor from London England UK 🇬🇧

[@winstonhall557]

You’re Absolutely articulate . Would make a great teacher. System well explained.

[@jamato2004]

Very clear and very good explained, you are my best teacher ever! Greetings from Holland i and wish you hugh succes!

[@agde0968]

Thanks clear concise and also gives a clear understanding of what you maybe undertaking!

[@ryanblankespoor7428]

Thanks for making this, relatively new to diesel and working as a tech in the field this was very informative for me.

[@bonjourmobilecardiagnostic7043]

That was a rough draft ???? Wow! Excellent video, thank you!

[@lachiecollins7914]

Awesome easy to follow lesson, I understand fuel delivery of a common rail in 53 min amazing dude!!!

[@danlayman2194]

Great information on the Diesel Common Rail System. Very informative and well presented. Well Done Sir! Mahalo 🤙

[@Alex-ml8hn]

Perfect video. Thanks . The relief valve is also named as " pressure limiting valve" in some cases.

[@mikemorrow6736]

Great presentation. There are after-market tool companies that sell a mechanical common rail pressure gauge with fitting, hoses and plugs. Are there any reputable tool companies like Snap-On or Mac that sell a similar test kit. Something about a Chinese $300 test kit and over 20,000psi plus doesn't add up.

[@chappysktichen1624]

Great video mate from Australia thanks for the lesson.

[@rednutflyfishing8795]

Im not a car guy bit i really enjoyed this video. Cheers.

[@lexloose2112]

Thank you. Excellent and well presented information. Best wishes from UK

[@DormantIdeasNIQ]

Dammm!~ some people are a pleasure to learn from... somewhat rare! You are one rare gem! I have a 2010 Chevrolet 4500 mini bus/shuttle with a 2011 running train factory installed (the LGH) and it says on the sticker it is a DI(Direct Injection)... I may not have a rail type... I have no idea! I have to snoop and get more info, clues! I am but a noob! UPDATE: after snooping I now know that common rail is direct injection since quite a while back..

[@Chollanger148-pv8jp]

P0093 and I'm tracking back from the injectors, thanks for the video

[@elsavaughnnewton5185]

I'm a new Diesel truck owner, thank you very much for simplifying how the system works. I'm having issues with my truck only starting after being plugged in, if I don't plug it up over night, it will not start !!! By chance can you tell me what may be the problem ?

[@Ed-ip2sg]

Great video. Lots of really good and useful information. Well explained. I haven’t bought my truck for towing an RV yet. Would like the diesel in the mountains. Not as as scared as I was. Thank you.

[@HeadsUpShouldersBack]

Sincerely, Impressive presentation sir.1979 John Deere 2840 -the Gifted-WorkHorse I am now (only now, after 20+ years of use/abuse) am forced to look directly in the mouth. Suffice to say, you saved my ass - it's cold in Michigan February. It's colder without my tractor. Thanks man. Sincerely.

[@danlayman2194]

Appreciate your explanation on common rail. Well Done Sir! Mahalo 🤙

[@CafeytJeon]

Absolutely good explanation I learn a lot thanks

[@rudymagarin6292]

calidad de informacion gracias amigo saludos desde el salvador

[@swacof2790]

Thanks professor,you are great teacher

[@heatmizer9172]

This is the most informative in-depth video on diesel diag I have ever seen think you so much please keep doing what your doing. Do you have any in depth DEF, DPF, SCR diag videos?

[@geomcc39]

I grew up in a Garage father ,uncle granddad all Mechanics. Sorry now were called Tech's . I remember my Dad teaching me and he always said books are good, But if you can't visualized what going on and have a good mental image of how its working . you will never understand it ! Great video !!

[@areid1440]

Excellent explanation of the system!

[@DoWhateverfilms]

This video is great! I'm trying to diagnose a no start after water in my filter and my engine shut down.

[@robertriddle4822]

Thank you, this was one of the best ive Seen and very well Potrayed, I'm new at this your information Was very easy to follow.

[@kirkabrahamson1148]

Great video. light vehicle Diesel Diag is a big thing in Oz at the moment

[@bongparejoordiz]

Thank you very much the best information you share. Its a big thing for me as a beginner.

[@Extrikit]

Great clear well presented information. Thank you

[@irineodeleon6758]

Sir you’re a great teacher ! How about teaching us onhows the flow of diesel fuel in isuzu trooper w / 4jx1 engine works . So many trooper owner may get happy if you can do that , because we’re getting too much hard in trouble shooting w/ this engine every we opem up the diesel line . Like replacing fuel filter after that we’re getting to re - start it up , so please help us ! I’m from the Philippines thanks a lot & God Bless You !

[@johnrafferty3682]

Hi. I have a CP1 high pressure pump on 2.8 hdi jtd pickup. To get it started I have to loosen the top head which carries the fuel cut off sensor then tighten it up after turning on ignition.

[@reaganababio1222]

Thank you for the education.Please I have an issue with my 2013 Jeep Grand Cherokee CRD.I need your help

[@DynoDieselWagon]

That was layman's terms BRILLIANT!!!

[@0000stuart]

Thanks for the video . I've got a 2013 fuso canter 3c13 with low fuel pressure . It's now in a garage & there struggling to fix it . The truck will only start - run when the fuel pump pressure regulator is disconnected . At all rpm's above 1000 the fuel pressure is ok . It's got a new fuel filter . At the moment I think maybe the low fuel pressure sensor on the common rail may be faulty . Any ideas please ?

[@PundrolLandownersAssociation]

I am experiencing fuel leakage from the fuel adjusting lever on my 1hz engine-landcruiser. Need some advice on how to resolve this issue. Thanks

[@MrByootox]

Great video and explained very well indeed, thankyou

[@nigelclark7360]

Excellent lecture, well explained.

[@TannerEskew]

Damn where is this guy at? I need him to diagnose my no start issue

[@nadiasyedxx]

Awesome Video and illustrates very well how important the fuel pressure is. Hence I want to monitor the fuel pressure of my CRD. Where would I hook the Fuel pressure gauge (e.g. from Defi, AEM aso)? Furthermore which bar range should the gauge support? Which gauge do you recommend?

[@sarelstipp9720]

Hi, hope you can help me on my Nissan interstar 2.5 diesel engine same as Reanault master struggle to start it found out there is pulse but no power on injectors can it be that the common rail pressure is to low for the pressure switch to give a signal to the ecu for the injectors to be activated or what can it be and we're we start for fault finding please net help from Jacques in South Africa

[@armandomaldonado1559]

Mine does not have a fuel pump in the tank.It's on the side of the chassierra.Can you tell me about that one

[@anthonylangit82]

Awesome video! I'm working on a JD350G and I'm experiencing issues with the fuel system. The engine sound like its running off 5 cylinders. I checked the fuel supply at #1 port at the rail and no fuel was coming out. I pulled the fitting with the spool and spring and cleaned it/checked the movement. The spool and spring seemed to be fine. At this point, I'm thinking the rail or the injection pump pressure regulator might be causing the issue. Have you experienced anything similar to this problem?

[@georgegill1815]

I have a Hyundai Terracan, I have changed the pressure sensor on the common rail, the pressure regulator on the fuel pump and still got a bad start problem. The car starts but wont accelerate, I have to wait till the fuel pressure builds before I can drive off. After watching your video, it's obviously the fuel pump worn out and won't hold pressure.

[@alvesthegreat]

Man you earned a subscription i love this

[@georgegill1815]

Your one clever man, thank you for your advice.

[@gearheadautomotivel.l.c.5476]

Great video Chris. As always I appreciate your thorough attention to detail. I didn't know you were CAT certified. Were you more on the truck side of things or did you do off-highway? Looking forward to the next part! -Z-

[@ScienceOfDiagnostics]

I went to school for Caterpillar construction equipment but I dealt with the truck side as well. Like I've always said, the basics remain the same throughout various applications. I try to focus on core operating principles and branch out from there.

[@gearheadautomotivel.l.c.5476]

@@ScienceOfDiagnostics Copy that. Generally speaking I like working on equipment. Certainly not the level of aftermarket support that the light vehicle side has, but it does seem to be getting better. I'm the same way when it comes to principles of operation. If I can learn how the system works then I'm confident I can figure out why it's not working. I may not get there as fast as others, but comprehension is important to me.

[@ScienceOfDiagnostics]

Comprehension is key. If you can understand and apply basic principles of operation, you can diagnose pretty much anything out there. I'm currently working on a hydraulic series, any specific requests you would have Zach?

[@gearheadautomotivel.l.c.5476]

@@ScienceOfDiagnostics Totally agree. That's what it's all about. Man I'd love to see something on reading hydraulic schematics as well as proper flow testing techniques. That said, I'll be happy with whatever knowledge you choose to impart. Were you able to attend Virtually Vision?

[@yahsings]

I bought a cat c7:,refer for food ministry it starts cold but you need 2seconds of ether to start warm.. I spent 5200.00 shop put 2new batteries. 2000.00 huei pump they did not solve problem with 5200.00. I went to mechanical perfection in Medford MN. He put new governor on air system.adjusted valves he said they needed it. He disconnected fuel pressure valve above huei on head side. And it started when warn without ether. It was thanksgiving so he did not get part .I had to take truck for food share. I spent 1000.00 with him. It's Sunday truck is parked. Oh truck leaks fuel drops of front of motor about a week now been half _ 1cup when parked. Do you think original shop should have found fuel pressure valve?

[@slvs91]

How much diesel is supposed to flow to return line after being disconnected from injectors ? Basically when doing leak of test, i done a leak of test on the injectors , all came back same value in 5 mins , but the return line i had to put it into a bottle as in 5 minutes it filled a 1 litre bottle , is that normal ? At the same time my rail pressure at idle is 30-40 bars under what is actually comanded , even when constant driving seems to struggle to maintain a consistent rail pressure , always fluctuating -40-50 bars , back to normal and then -40-50 again. Please help

[@montana6932]

A Very nice video Christ .Which system has range rover vogue 2002 3 liter diesel ?

[@jamieboris7058]

Will you get to bleeding the giddamned rail please

[@Kevin-td7sw]

Sir, is it important to bleed a new generator before cranking

[@GetMoGaming]

That's exactly why I'm here lol. I'm used to older petrol engines.

[@markchodroff250]

Very good explanation

[@jaibabu7481]

in isuzu dmax 4ja1 engine one pipe from fuel pump is connected to the engine block and a connector connected to it what is that for bro

[@DRBRIGHT_213]

Hey I'm mechanicking on a 2004 MBE OM 460 in an old Freightliner, no start after fuel filters changed. How do you prime this lemon?!

[@tonykollar6870]

In your opinion what's the Crank time in cold weather like - 4 Fahrenheit for comon rail...how many seconds if batery is strong

[@maithemalsaigh2636]

Hi, if one injector only fail, can it block the other injectors from working ? And cause crank no start situation ? Lexus is 220d

[@goobersteel2231]

Thanks man great video, does the common rail hold pressure when the engine is off

[@goobersteel2231]

If yes what is the average pressure it should hold

[@christopherlow5571]

Awesome Video Mate, very well explained. Keep it up. Cheers

[@m0410338]

Hello, I have a question of diesel fuel cooler. Does diesel engine needs fuel-cooler mandatory at fuel return line? We have high pressure pump wear problem. (the engine has no fuel cooler) I think overheated diesel fuel from return line makes high temperature at fuel tank and this over heated fuel makes damage at high pressure pump. Waiting for you opinion. Thanks , Best regard.

[@frankhernandez7700]

Hi. I am working on a John Deere 2016 6090l engine. Is on a Clarke fire pump. The issue I am having it doesn't want to accelerate past 900rpm. Somethinmes it will reach 2100 rpm Wich is normal running rpm. But it will bounce between 1800 and 2000rpm like if it was surging for fuel. It has new fuel filters. I changed fuel rail pressure sensor and suction control valve. I order a injection pump do you tink that could be the problem or a faulty speed sensor. Thank you in advance.

[@threemglobal]

Very good info

[@madinahboy]

I have a Hyundai Santa Fe 2.0 CRDI, I got codes p0087, p1186, p0192, car stalls on higher speeds usually over 60mph, or when you floor it, I changed filter, fuel rail sensor, how would you diagnose this if its a weak pump or has fuel line leaks ? Its weird I swapped my rail sensor with my brother's car then put mine back in and it worked fine for a week then started stalling again when trying to go over 60mph, or on sudden acceleration

[@elmercasipe8278]

sir i have a crdi k2500 kia 2 injector are fault more fuel is in return and ah hard starting..the problem is if sucket connector in injector is un plug this start no problem..but if sucket connector is plug it is a hard start problem..what is ah common problem..thanks for the reply.

[@محمدابوحسن-م4س]

Hi. I have hyundai trajet 2005 diesel with common rail System It's hard to start except if I disconnect ect sensor or if I turn on condititioner or If It was so cold which as I notice ecu give order to pump to much diesel in these three cases I want to ask you about the next situation: When I turn switch key to ON position without cranking the lift pump work afew seconds and stops and during these seconds diesl pass the high pressure pump into rail and then to the tank through pressure regulator valve. Also diesel come out high pressure fuel pump relief valve to the tank Is that OK or tere's some thing wrong Note: after the engine start working then every thing is OK

[@davidshipulski4532]

Very interesting! Great video in depth!

[@bobbyyy776]

Faulty/leaky injectors can affect common rail pressure and cause starting issues.

[@MrGodsking]

are you familiar with bosch common rail I cant get fuel at the rail