Diesel engine rattles for a minute then goes away?

Tiny
PAPERCUT
  • MEMBER
  • 2013 VOLKSWAGEN PASSAT
  • 2.0L
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 191,000 MILES
The engine in my car makes a rattling noise when I accelerate, but then it goes away after maybe 30 seconds. It only happens for a short time when I start the car for the first time that day and it never comes back throughout the day.

I even tried warming the car up for a few minutes and it still makes the sound.

Should I be worried? Thanks.
Wednesday, May 10th, 2023 AT 12:22 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It sounds like it could be a rod bearing letting go or a broken piston, but to be sure can you please shoot a quick video with your phone so I can hear the noise? That way I can tell for sure what's going on. You can upload it here with your response. Also do you have a check engine light on, this guide can help you find out:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please go over this guide and get back to us.
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Wednesday, May 10th, 2023 AT 5:45 PM

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