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.
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.
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.
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
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!
Great Video! I am inexperienced with Diesels, this video is actually organized and informative while not oversimplifying stuff. Keep up the great work man!
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 !!
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.
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!!!
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.
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!
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.
@@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
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
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
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
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 🇬🇧
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.
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.
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
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.
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
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..
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.
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.
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?
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 ?
What an incredible video mate, not used to diesel engines but this has taught me LOADS! I'm having a Crank - No Start Issue with my Iveco Daily 2.8, watching this video makes me wanna go further back down the fuel system and re-check Low Pressure...which I assumed was fine, as I'm getting fuel upto the Common Rail...but maybe still not enough pressure!? Thanks man.
Just thought I'd update: Finally managed to get my van started!! This video was a huge help - turns out I just needed to bleed the air out from ALL of the injector inlet pipes - (I'd only checked fuel was "reaching" 1-2 of them). Pipe No.3 had a lot of air, finally pushed diesel through and it started! (Note: I think I'd drained the fuel lines via the return pipe, by running my diesel heater without the engine running)
@@Automotiverecoveryuk Depends on the vehicle mate, I think some Pipes are not meant to be loosened more than once, so check and be careful...but, I just loosened the pipe nut on each injector (not the one on the common rail, as air rises in the pipe, so best do the highest one), 1,2,3, then 4 etc. Loosen them, then crank/try to start the engine for a few seconds - air should come out, followed by a squirt of diesel, then quickly re-tighten the nut. Repeat for each injector pipe until all the air is released. Good luck!
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.
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.
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
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?
Anyone give me some advice please before i pull the trigger on a new high pressure fuel pump,my main question is can a high pressure pump just struggle higher up the rev range only? I have a 2008 mercedes c-class 3.0 cdi om642 diesel,car runs flawlessly except for when you accelerate hard from say 60mph you get an instant eml light and reduced power,code is either on one tool p0089 or 11b800 'The control deviation during rail pressure regulation via the quantity control valve is too high.' I've replaced fuel filter,fuel rail pressure sensor,fuel quantity control valve on high press Pump but no improvement. I took out the lift fuel pump in the fuel tank and the filter gauze on it's base was blocked solid!!Cleaned that but no improvement which surprised me. Can it be the high pressure pump?Not much else left! ;-) Oh,the freeze frame data from the fault the fuel rail pressure was 1380 bar,specified was 1560 bar?Is that enough of a problem?
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 ?
I find the closing comments regarding the locking of garage doors somewhat comical. In South Africa, if it is not bolted down or locked behind steel, it WILL be gone the next day. We have electric fencing on the 6-ft fencing, alarm beams around the houses, motion sensor lighting etc etc. Seems like we are actually ahead of the curve that open borders brings. FYI, the power in my area is off at least once a month as criminals cut the high-voltage transmission lines and drag them off to be sold as scrap metal. And I live in a fairly normal neighborhood. Good luck in the US of A.
This is the kind of information people will pay big money for, gotta love someone doing it on RUclips to help everyone.
Amazing! You've raised the bar on RUclips instructional videos. Thank you.
What can be the problem when it will run for 20 minutes or so, then die for a half hour?
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.
joe do u mess with 6.7 powerstroke
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.
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.
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
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!
Great Video! I am inexperienced with Diesels, this video is actually organized and informative while not oversimplifying stuff. Keep up the great work man!
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 !!
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.
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
Needed this simple comment.
Played it on 2x speed
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!!!
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.
Yep, very thorough
That's a better explanation of the system than any of the courses I have ever been on 😎
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!
Incredibly well explained. Great information!
the simplicity makes it easier for one to want to be a diesel mechanic.
Excellent work Chris!! Absolutely love your knowledge and presentation. Keep up the great work.
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.
@@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
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
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
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
What a great presentation. Clear and concise. You sir are a great teacher!
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 🇬🇧
What a great video passing on knowledge is the greatest gift you can give
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.
That was a rough draft ???? Wow! Excellent video, thank you!
Very clear and very good explained, you are my best teacher ever! Greetings from Holland i and wish you hugh succes!
P0093 and I'm tracking back from the injectors, thanks for the video
Thank you. Excellent and well presented information. Best wishes from UK
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.
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.
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
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.
Great information on the Diesel Common Rail System.
Very informative and well presented.
Well Done Sir! Mahalo 🤙
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
Thanks clear concise and also gives a clear understanding of what you maybe undertaking!
You’re Absolutely articulate . Would make a great teacher. System well explained.
Thanks for making this, relatively new to diesel and working as a tech in the field this was very informative for me.
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.
Im not a car guy bit i really enjoyed this video. Cheers.
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..
calidad de informacion gracias amigo saludos desde el salvador
This video is great! I'm trying to diagnose a no start after water in my filter and my engine shut down.
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.
Great clear well presented information. Thank you
Absolutely good explanation I learn a lot thanks
Perfect video. Thanks . The relief valve is also named as " pressure limiting valve" in some cases.
Excellent explanation of the system!
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.
That was layman's terms BRILLIANT!!!
Very good explanation
Very informative, thank you for simplifying it .so much information out there .
Great video. light vehicle Diesel Diag is a big thing in Oz at the moment
Appreciate your explanation on common rail.
Well Done Sir! Mahalo 🤙
Your one clever man, thank you for your advice.
Thank you very much the best information you share. Its a big thing for me as a beginner.
Excellent lecture, well explained.
Great video and explained very well indeed, thankyou
Man you earned a subscription i love this
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?
Very interesting, like to learn more
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 ?
Very interesting! Great video in depth!
Very well done 👍👍👍
great info thanks for providing the data
That's exactly why I'm here lol. I'm used to older petrol engines.
Awesome Video Mate, very well explained. Keep it up. Cheers
Best what I newer seen !!❤🎉❤!! It's true wreally !🎉!
Damn where is this guy at? I need him to diagnose my no start issue
Well done for this, regards
Very good info
Nc Solid explanations, Lods
Well done thank you.
Bloody good piece of content. Come on, get the next video going bro I'm going to subscribe and wait for it!
What an incredible video mate, not used to diesel engines but this has taught me LOADS! I'm having a Crank - No Start Issue with my Iveco Daily 2.8, watching this video makes me wanna go further back down the fuel system and re-check Low Pressure...which I assumed was fine, as I'm getting fuel upto the Common Rail...but maybe still not enough pressure!? Thanks man.
I'm having same issue so tryna learn
Just thought I'd update: Finally managed to get my van started!! This video was a huge help - turns out I just needed to bleed the air out from ALL of the injector inlet pipes - (I'd only checked fuel was "reaching" 1-2 of them). Pipe No.3 had a lot of air, finally pushed diesel through and it started! (Note: I think I'd drained the fuel lines via the return pipe, by running my diesel heater without the engine running)
@@Automotiverecoveryuk Check my reply, try really hard to bleed the air out of the system. Good luck!
@@twothumbsfresh whats best way to bleed air out system where u based
@@Automotiverecoveryuk Depends on the vehicle mate, I think some Pipes are not meant to be loosened more than once, so check and be careful...but, I just loosened the pipe nut on each injector (not the one on the common rail, as air rises in the pipe, so best do the highest one), 1,2,3, then 4 etc. Loosen them, then crank/try to start the engine for a few seconds - air should come out, followed by a squirt of diesel, then quickly re-tighten the nut. Repeat for each injector pipe until all the air is released. Good luck!
Awsome bro thanks plenty got it totally
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.
We are learning✍️... thank you sir.
Excellent video, well done
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
Thank you for the education.Please I have an issue with my 2013 Jeep Grand Cherokee CRD.I need your help
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
Well done sir
Great vid. Thanks man
Great job on the video
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.
Thanks very good info.
Awesome... Thanks for sharing. Cheers.
thank u bro ,thank s for teaching
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?!
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
Valuable video here folks
Its good lecture
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?
Anyone give me some advice please before i pull the trigger on a new high pressure fuel pump,my main question is can a high pressure pump just struggle higher up the rev range only?
I have a 2008 mercedes c-class 3.0 cdi om642 diesel,car runs flawlessly except for when you accelerate hard from say 60mph you get an instant eml light and reduced power,code is either on one tool p0089 or 11b800 'The control deviation during rail pressure regulation via the quantity control valve is too high.'
I've replaced fuel filter,fuel rail pressure sensor,fuel quantity control valve on high press Pump but no improvement.
I took out the lift fuel pump in the fuel tank and the filter gauze on it's base was blocked solid!!Cleaned that but no improvement which surprised me.
Can it be the high pressure pump?Not much else left! ;-)
Oh,the freeze frame data from the fault the fuel rail pressure was 1380 bar,specified was 1560 bar?Is that enough of a problem?
Plz let me know how to test injector driver on Toyota previa d4d
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 ?
really good. Thanks
I find the closing comments regarding the locking of garage doors somewhat comical. In South Africa, if it is not bolted down or locked behind steel, it WILL be gone the next day. We have electric fencing on the 6-ft fencing, alarm beams around the houses, motion sensor lighting etc etc. Seems like we are actually ahead of the curve that open borders brings. FYI, the power in my area is off at least once a month as criminals cut the high-voltage transmission lines and drag them off to be sold as scrap metal. And I live in a fairly normal neighborhood. Good luck in the US of A.
Very good , thanks!