Engine knock on cold start?

Tiny
DANNII HALES
  • MEMBER
  • 2010 NISSAN X-TRAIL
  • 2.4L
  • 6 CYL
  • TURBO
  • 4WD
  • MANUAL
  • 255,000 MILES
I have a loud engine knock on cold start, when I accelerate it gets worse but once running for 5 minutes the knocking goes.
Saturday, May 20th, 2023 AT 11:25 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

Does the sound completely go away or just get quieter? Is it loud enough for you to record and upload for me to hear? Based on your description, it could be a main engine bearing or rod bearing. See if you can tell if it is louder on top of the engine or from under the vehicle.

Also, take a look at this link:

https://www.2carpros.com/articles/engine-noises

Let me know. Also, if you can upload the sound, it may help me identify it.

Take care,

Joe
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Saturday, May 20th, 2023 AT 11:59 PM

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