CXFA strange noise

[alter]

A problem friends, my engine, 2.0 cxfa from 2016, started making a strange noise... I thought it was the tensioner of the service belt so I tried to remove the belt but the noise remained.... I also replaced the timing belt including the water pump and the tensioner and pulleys, but nothing changed. I also replaced the engine oil.... someone told me there was a problem with the hydraulic lifters... I would like to know if my engine has hydraulic lifters, thanks

 

[Dellmassive]

Yes the engine has hydraulic lifters.

Dodgy lifters will give you a ticking or tapping sound that follows the RPM.

Can you get a video clip of it?

 

[alter]

.... I can't insert the videos, sorry

 

[Dellmassive]

You need to put it on YouTube (or other)

Then post a link to that here .

 

[alter]

Sì, il motore è dotato di sollevatori idraulici.

I sollevatori difettosi produrranno un suono tipo ticchettio o battito che segue i giri al minuto.

Puoi avere un videoclip?

....I am incapable

...can I send by email?

 

[alter]

 

[mmi]

 

[Dellmassive]

ah, very good.

not come across that sound before. . .

so HPFP spring failed.

looks like that guy replaced the HPFP.

 

[alter]

Devi metterlo su YouTube (o altro)

Poi posta un link qui.

A thousand thanks

 

[alter]

.... di solito se si rompe la molla, oltre al rumore dovrebbe succedere qualcos'altro, ma la mia Cali funziona bene, non ha incertezze..... Proverò a smontare la cinghia di distribuzione e a spostare l'ingranaggio come nel video... Preferirei che fosse la pompa piuttosto che iniziare a smontare l'intercooler, le punterie o altro...

Usually if the spring breaks, in addition to the noise something else should happen, but my Cali works well, it has no uncertainties..... I will try to disassemble the timing belt and move the gear as in the video... I'd rather it be the pump than start disassembling the intercooler, tips or whatever..

technical question..: what is that spring for?

 

[alter]

.... sorry, but my 2.0 cxfa sgc engine, which high pressure pump is mounted? delphi or bosch? thanks

 

[Roodedoo]

.... sorry, but my 2.0 cxfa sgc engine, which high pressure pump is mounted? delphi or bosch? thanks

Did you get to the bottom of this?
I have similar noise but no low-pressure warnings or stuttering. Just generally lower than expected performance.

 

[alter]

Good morning, I have not yet solved the ticking problem, I tried replacing the injectors but the noise remains, I also tried massive doses of additive for hydraulic tappets but nothing changes, I have now traveled 10k km with this noise without other problems with the engine.... it does not consume oil and the regenerations always have the same frequency, in the diagnosis at a Bosch Service no errors emerged...... I should probably leave the vehicle with a willing mechanic who will patiently find out what is causing the noise....

 

[Sasquatch]

Have you tried a mechanics stethoscope?

 

[alter]

.... my ears work poorly unfortunately, I suffer from tinnitus, I tried "the old fashioned way" with a long screwdriver but the noise is not well localized, I also thought that the cause was the pump spring breaking but a specialist in injection pumps ruled it out, in fact the engine has no hesitations. I also replaced the timing belt thinking it was the tensioners or pulleys but nothing changed. But I have a new belt and water pump!!