How a Common Rail Diesel Injector Works and Common Failure Points - Engineered Diesel

We, at Engineered Diesel, created this video to help our customers have a better understanding of how a common rail diesel injector works, which makes it easier to understand why they fail. This video also points out common failure points within the injectors. If you are experiencing ANY of these symptoms, you may need new injectors.

We deal primarily with Pickup Truck engines for Cummins, Duramax, and Powerstroke.

[magna]

Thank you for putting this up . Start to understand why they are so expensive, good materials required to cope with high pressure & heat + tight tolerances makes you want to go back to carbs !

[simonjohnhinton]

Low sulphur diesel can be blamed for a lot of injector pump failures since the sulphur content acts as a lubricant. The mk3 mondeo tdci has this problem. When the pump wears it releases tiny metal particles into the fuel system. There were a number of cases of an injector being held open flooding the cylinder causing a bent con rod. Modern diesels are great when they're running right but can be an expensive pain in the arse when they go wrong.

[nxfnspp]

Hello from Moscow (Russia)! Very good video!

[Nyck]

Nice video. It would be much better with narration by some expert in Diesel

[ماوُرِدَفيالقرآنالكريم]

You are professional
It is fantastic and clear.

[davefd]

Nice simple and effective
Well done m8 very usefull info

[PerWiklund]

Very nice. I was looking for the reason for having leak off lines on common rail injectors. Now I know.

[steliossykiotis]

Thank you. The worst are the cheap Piezoelectric injectors for Euro 6 diesel.They started failing at 20K km. Change them to the best quality injectors you can find.

[Arturrr]

Thanks, I understand basic rules how it works now.

[syedmaqureshi]

Indeed lovely video cleared my concept about inj. fuel
thANKS APPRICIATED

[DanielLunsford-mkic]

Very educational video there should be more videos like this one 😅

[wazzaracer]

the weakness in common rail is the pump that has maintain high pressure in the rail. Proper diesel injectors are driven by a large full size camshaft and are very robust.

[firoznanji]

Very Very Nice Video, I loved it. Now I understand the Injectors better. I have a 2007 Nissan Qashqai 1, 5dci K9K engine that won't start. I am here in Mozambique/Africa. Luckily I have some experience on injectors, and I do have a Ultrasonic Cleaner. I did dismantle them all and cleaned them . Did a test on the Car, they blow diesel fantastic.. Unfortunately the car still doesn't start. I will do a Leak test tomorrow, and update. Are there any special tools available to open solenoid part, and get to clean the small inlet nozzle ?

[sekainiheiwa]

Wonder how about Delphi CR injectors works, how this control valve works. Interesting

[milxl]

does the pressure comes from the entry when the pintel slides left?
or is it reserved in the right section at the tip ?
it's not clear

[PartMiniBus]

Will injector cleaner solve Nozzle Erosion Seapage?

[alidycepaisley]

So it looks as though such a nozzle could spray continually - like the fuel injector in a gas turbine - so long as the fuel rail was maintained at a suitable pressure and a constant current was applied to the injector. I wonder how wide the range of pressures is for which it would atomize the fuel.

[AxleRods]

It's like a whole damn carburetor inside there, I can totally understand why they are so expensive

[crazyflod]

Could a high pressure in common rail fault be caused by the high pressure pump not shutting off?

[brunoscarpatt]

Muito util e bem esplicado quero fazer cursos com vcs e adquirir o raster da raven como faco