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Loud clicking/rattling noise between 1700-2000!rpm

CDNi30 · 10 · 264

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Offline CDNi30

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Happy I found this forum and Hello from NSW Australia. Recently bought a 2012 i30 cw crdi automatic with 89000 km on the clock from a dealer. Car is making a loud clicking/rattling noise between 1700-2000!rpm. Found a small pool around one of the injectors. Not sure if overspill or fuel I didnt smell it but looked clean. Still under stat warranty so took to an independent mechanic before taking back to dealer, independent mechanic said something definitely wrong most likely injectors, fuel pump or timing chain tensioner? Pretty broad. Took it back to dealer they sent the injectors off to be tested. All were cleaned and adjusted and one was found 'out of spec'. Picked up the car yesterday. Fuel efficiency is better but the sound is still there. What could this be? I asked the dealer for paperwork from testing place because my gut is telling me they need to be replaced not cleaned. Can anyone help me diagnose this problem? Included a short video. Sound happens cold or hot. Usually worse on an incline. Sounds like a loud sewing machine.
Thanks in advance guys. Ok so I dont know how to include a video. Compressed to under 200kb but cant upload.
  • 2012 Hyundai i30 cw


Offline Shambles

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You can upload to youtube and link back here ;)
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Offline CDNi30

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Offline CDNi30

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https://youtube.com/shorts/pnlCvUto_vM

I will take a better video tomorrow this was very quiet. It usually sounds more like a rattle and very noisy.
  • 2012 Hyundai i30 cw


Offline Shambles

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Offline CDNi30

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Offline CDNi30

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Dealer has said that the car will be sent to a Hyundai dealer for PCM update. I hope that fixes it. I have read through a few similar threads this forum and seems like changing the injectors solves the problem for someone..
  • 2012 Hyundai i30 cw


Offline blavcteam

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Dealer has said that the car will be sent to a Hyundai dealer for PCM update. I hope that fixes it. I have read through a few similar threads this forum and seems like changing the injectors solves the problem for someone..

Hi only occur when you push the gas pedal if like that try to clean and set injektor parameters and coded it with computer
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Offline CDNi30

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Did this fix the problem for you? They have tested and cleaned my injectors, next week will be sent to Hyundai for pcm upgrade. Fingers crossed.
  • 2012 Hyundai i30 cw


Offline blavcteam

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Did this fix the problem for you? They have tested and cleaned my injectors, next week will be sent to Hyundai for pcm upgrade. Fingers crossed.

Yes, they replace 2 injectors location, and rememory location with code
  • 1.6Crdi


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