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Discussion Starter #1 (Edited)
Hello Guys,
My name is Sebastian Filip. I'm from Poland.
Please see my video which I attached.. Maybe you can help something since Authorized Service Center doesn't have any ideas.
They:
  • replaced 2x injections (2 and 4)
  • replaced injection control unit
No changes.

I tested different typesof oil. Original 0w20, then 0w30, now 5w30. No changes.

What you can hear is a cold engine.




Best Regards
Sebastian
 

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I'm sure there are experts on here that may be able to help more than me, but for me it just sounds like a diesel engine, perhaps a little tappy on the heads as though the followers may need adjusting...
I find fuel makes an enormous difference to the engine noise. Low grade supermarket makes mine ratterly, whereas Shell or Esso quietens it down.
I used to run my 1.9JTDm GT on bio diesel, it was so quiet you'd have thought it was a petrol, the downside being it smelt like a McDonald's on startup!!
Rob
 

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Discussion Starter #5
I'm sure there are experts on here that may be able to help more than me, but for me it just sounds like a diesel engine, perhaps a little tappy on the heads as though the followers may need adjusting...
I find fuel makes an enormous difference to the engine noise. Low grade supermarket makes mine ratterly, whereas Shell or Esso quietens it down.
I used to run my 1.9JTDm GT on bio diesel, it was so quiet you'd have thought it was a petrol, the downside being it smelt like a McDonald's on startup!!
Rob
Thanks for your feedback.Yes, warm engine sounds like a diesel engine (I hope :) ). I'using Shall V Power Diesel now. Before normal Shall petrol. Always the same.

For me sound of cold engine is ubnormal. Catastrophic :). Giulia done only 77kkm

Regards
sebastian
 

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Firstly, is it in warranty ?
It does sound like an injector issue. Either a faulty injector or loose injector. If loose you will see residue where the injector screws into the head.
 

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Discussion Starter #7
Firstly, is it in warranty ?
It does sound like an injector issue. Either a faulty injector or loose injector. If loose you will see residue where the injector screws into the head.
Thank you for your message ...
No, w/o warranty. That's a problem. This bad sound I heard when the Giulia was in warranty, but I neglected the problem. It is my fault.
Yes, you are right - it does sound like an injector problem, but everything is clear. I have checked the whole engine also this area what you wrote. It is dry and like "brand new". Clear.
 

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There is a trick you can apply to find out which injector is ticking. Place a long screwdriver at each injector, touching the body of the injector, and place your ear to the other end of the screwdriver, in effect you are making a homemade stethoscope. That will allow you to detect which injector is causing the loudest ticking noise.
 

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Discussion Starter #9 (Edited)
There is a trick you can apply to find out which injector is ticking. Place a long screwdriver at each injector, touching the body of the injector, and place your ear to the other end of the screwdriver, in effect you are making a homemade stethoscope. That will allow you to detect which injector is causing the loudest ticking noise.
Thanks for your idea and support ...
After my test ,,, first injector is clicks terribly. Third is also loud,

I have checked correction of the injectors (Multiecuscan), but I cannot interpreted the data. I do not have any idea how to read this "numbers".

I put my new video and photos :)

cold:

cold + additional option:

after 15min of work:



Regards
 

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Your correction values for the injectors are fine, perfect actually (your looking for a major deviation from the others, so say if one went to plus 1.73 while the others were in the range of minus .50 to .80) . Thats the only relevant check you can do. You simply have 2 noisy injectors, but they are doing their job correctly otherwise. Your choice is replace them, expensive, or live with it. You could try a diesel specialist, Bosch agent, for another opinion. They would be more knowledgeable than the Alfa workshop on diesel matters. I'd live with it were it me.
 

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Discussion Starter #13
I can compare it with mine, 2017 180 bhp 2.2, 70,000 miles. Mine is much quieter.
I received video from my "friend" (he lives ~300 from me) yesterday from his Giulia. Engine is warm. The sound in comparison to my Giulia is OK (I hope).... IMG_4341 - Streamable
He promised me send sound of the cold engine.

Hugh Myles ... I know that it is expensive (600euros - 1 piece) but I cannot live with it :). I hope that you understand. You know what I mean :)

Regards
Sebastian
 

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I understand. In that case I would definitely find a Bosch diesel dealer in your locality to take a look. If nothing else, the injectors will be cheaper with them.
 

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Discussion Starter #15 (Edited)
I understand. In that case I would definitely find a Bosch diesel dealer in your locality to take a look. If nothing else, the injectors will be cheaper with them.
Yes, you are right. I discovered that we have the same injectors as Jeep.
I found also that one seller in my locality offers used ones from Giulia 2018 (40kkm). In this week I start with this issue.

Thanks for your support ! .... and idea with screwdriver :) Great job !

Are you from Italy ? :) Parlo un po italiano ... :)
 

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No, Ireland. Another idea might be to switch the injectors around to see if the noise follows the injector, then you know for sure it is the injector and not something else in the high pressure system.
 
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