Noise coming from the front of engine

Tiny
FREE_FORD
  • MEMBER
  • 2003 DODGE DURANGO
  • 5.9L
  • V8
  • 2WD
  • AUTOMATIC
  • 164,000 MILES
There's a high pitch whistling or whining sound coming from the front of the engine. When I push on the accelerator it doesn't go away, it just goes a little quieter to let it off the gas, it gets loud again very loud.
Sunday, March 6th, 2022 AT 11:04 AM

2 Replies

Tiny
BORIS K
  • MECHANIC
  • 799 POSTS
Hello,

It sounds like you might have a problem with the serpentine belt or tensioner bearing.
A quick check would be to remove this belt and start the engine, see if the noise is gone.

Here is a good video:
https://youtu.be/AEUe6uKxTv8

Video on a V6 engine.
https://youtu.be/YMB_xpr0Emg

Some good guides.
https://www.2carpros.com/articles/how-a-serpentine-belt-works
https://www.2carpros.com/articles/replace-serpentine-belt
https://www.2carpros.com/articles/how-a-serpentine-belt-tensioner-works
https://www.2carpros.com/articles/serpentine-belt-tensioner-replacement

Please let us know how you get along.

Cheers, Boris

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Monday, March 7th, 2022 AT 9:02 AM
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

This could be due to a pulley or the serpentine belt.
The belt noise can change frequency with the engine speed.
One thing you can try is to spray belt dressing on the belt while the engine is idling. If the noise changes, then you will know the issue is the belt.

Here is a helpful article:

https://www.2carpros.com/articles/car-squeaking-noise

Can you possibly upload a video, so we can hear the noise? It will be helpful.

I have attached the belt inspection procedure below.

Please let me know if you have any questions.
Thank you.
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Monday, March 7th, 2022 AT 9:21 AM

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