Knock inside the tapped cover

2013 CHEVROLET CRUZE
184,759 MILES • 0.6L • 4 CYL • 2WD • MANUAL
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PHOLOGE
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  • 1 POST
My car is starting well, but when idling I can he knock like it's coming from the camshafts. any ideas? thanks
Feb 2, 2022 at 3:19 AM
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SQM
  • ASE Certified Mechanic
  • 6,383 POSTS
  • ASE Certified Mechanic
Hello,

Is the noise only exist when the engine is at idle?

Is it constant noise? Does it change frequency as the engine speed increases or decreases?

You could have various noises from an engine due to different reasons. It could be due to low oil. Or having improper fuel that is creating a knock.

If possible, upload a video so we can hear the noise.

Let me know if you have any questions.
Thank you.

https://www.2carpros.com/articles/engine-noises
Feb 2, 2022 at 7:07 AM
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PHOLOGE
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Hello,

The noise you can hear only when idling.

Sent from my Huawei phone.
Feb 3, 2022 at 8:11 AM
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STRAILER
  • ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
Can you please shoot a quick video with your phone so we can hear the noise? That would be great. You can upload it here with your response.
Feb 3, 2022 at 8:12 AM
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