Engine noise

Tiny
JOHNBRINCKO1307
  • MEMBER
  • 2008 SATURN ASTRA
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 85,500 MILES
Loud knocking noise when idle and driving. Loss of power.
Wednesday, March 20th, 2019 AT 11:18 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,867 POSTS
Welcome to 2CarPros.

A loud knocking from the engine is usually a crankshaft main bearing or a connecting rod bearing. Make sure the oil is clean and full. Then, read through this link. It discusses the most common causes of an engine noise.

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

Read through that link and see if anything mirrors what you are experiencing. Let me know if I can help in any way.

Take care,
Joe
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Wednesday, March 20th, 2019 AT 7:48 PM

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