Engine noise while accelerating

Tiny
JENNY11
  • MEMBER
  • 2003 CHRYSLER PT CRUISER
  • 90,000 MILES
My 2003 pt cruiser idles smooth but when you accelerate there is a loud humming sound that is coming from the motor. Any idea whats causes the noise.
Friday, October 12th, 2012 AT 4:22 AM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

There are multitude of reasons for an engine can make noise.
Today's car engines are designed with more complexity and moving parts than ever before. When you hear abnormal noises there is something wrong.
It could be a worn wheel bearing that makes humming noise as you got down the road, and it just appears to be coming under the hood.

https://www.2carpros.com/articles/how-to-replace-front-wheel-bearings-and-seals

Please refer to this guide for some helpful info:

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

Please let me know of any questions.

Thank you.
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Monday, July 19th, 2021 AT 11:01 AM

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