Isuzu 3.0 motor failure

Hello, I have an isuzu crane of 2008 with 3.0 engine (type of 4jhx1 or 4jh1-tc) I do not have it clear (variant if I remember I remember 77 L), the problem is as follow The proof did not give problems, but once the same has happened, I asked the mechanic if it could be something else, but M said that it was the same, my question is, is it really the bomb ??? , something similar to this same crane passed to a partner, I commented that it could be dirt, or an nozzle that is close to the pump, or a kind of nozzle that is next to the bomb, even some injector, I am autonomous and the truth that I have been stopping for almost two months to account of this, the Isuzu service in the Canary Islands is pestim It was fine thanks, Aki leaves you a link so you have an idea of ​​what type of vehicle it is, I hope it's fine, thank you

Hi toyeslomao, it is already weird that if it is going well in the bank, it is badly mounted, it will not be that the initial progress is poorly for? As if the point was advanced, so you comment on the pulls and smoke ... if the progress electrovalve of the bomb itself was bad, they would have said it in the bank. I advise you to go to another workshop to value a second opinion ... It can be from an injector grabbed, or that it is lazy and loses ... luck !!!

Thanks for the answer, I do not have more and more doubts that the bomb is evil, if this week it is not fixed I will take it to another workshop, and obviously they will put a complaint, or whatever corresponds, as soon as I know something else I will comment on it

Hello, I am a diesel mechanic and a firefighter, so you have my opinion, you have no bomb or injectors but it has an oil problem is that white smoke.
It can come in many ways valves or sements or turbos of turbos together.
For that there would be some people.

If the valve seals or the grease segment are broken, gives pulls?