Chirping sound

Tiny
CHINYERE NWOKE
  • MEMBER
  • 2003 MERCEDES BENZ 240D
  • 4 CYL
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
Parked in storage for 6 months. Now making chirping sound.
Tuesday, May 19th, 2020 AT 5:05 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
More then likely this is the drive belt that is worn or dried out. We need to check the belt for cracking or just simply remove it and start the engine to see if the noise is gone. At that point, I would recommend putting a new belt on it. You can also take a small amount of dry graphite lubricant on both sides of the belt then start the vehicle. If this noise is gone and comes back a minute or two later, it is the belt. The graphite will stop a dry rotted belt from squeaking until it wears off.

Here is a guide that helps with other chirping noises:

https://www.2carpros.com/articles/chirping-noise

Let me know what you find. Thanks
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Tuesday, May 19th, 2020 AT 5:53 PM

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