violent banging noise from the engine?

220,000 MILES • 5.3L • V8 • 2WD • AUTOMATIC
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DAVID GREENHOUSE
  • MEMBER
  • 2 POSTS
Getting a violent banging noise from the engine. Decreases when in gear and stopped. Increases when accelerating.
Oct 14, 2024 at 12:46 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,684 POSTS
It sounds like you have a rod bearing that has spun, but if you upload a short video of the engine running, I can tell for sure what's going on. These guides may help as well:

https://www.2carpros.com/articles/understanding-and-repairing-engine-knocking-noise-an-in-depth-guide

and

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

Please upload videos in your response of any problems so we can see what to help you with. Please check the engine oil level/condition as well.
Oct 14, 2024 at 4:23 AM
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DAVID GREENHOUSE
  • MEMBER
  • 2 POSTS
The oil is good.About 50% life left. Level is good as well.
Oct 14, 2024 at 9:05 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,684 POSTS
That does not sound good. can I ask you to confirm the engine size? Also, please remove the serpentine belt and start the engine to see if the noise goes away, this will confirm the engine is having an issue internally. Do not drive the car with the belt off or let the engine run for more than 1 minute. Thanks for the video, it helps.
Oct 15, 2024 at 2:24 AM
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