Rattling in the engine compartment?

Tiny
TOYPACIFIC
  • MEMBER
  • 2016 TOYOTA COROLLA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Hi, guys I need some input here. There’s this rattling sound that comes from the left side of the motor. But as you can see in the video as I press down on the valve cover it goes away slightly. Would you happen to have a slight clue as to what this might be? A little help with where to look would greatly be appreciated.
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Monday, April 22nd, 2024 AT 2:06 AM

2 Replies

Tiny
MECHTRIX
  • MECHANIC
  • 382 POSTS
Try checking the engine mount directly below where your hand is in the video sometimes a loose or worn engine mount can produce a sound like this.
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Monday, April 22nd, 2024 AT 1:52 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,364 POSTS
Yes, this will be the timing chain, guides and tensioner that need to be replaced. This is common at this mileage, but you might want to remove the belt and start the engine to make sure it is not the tensioner. Thanks for the video it helps.
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Friday, September 5th, 2025 AT 3:00 PM

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