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Tapping noise in engine

Tiny
JAEDAV12
  • MEMBER
  • 1998 FORD EXPEDITION
  • 5.4L
  • V8
  • 2WD
  • AUTOMATIC
  • 178,000 MILES
Noise started yesterday. I don’t know if it’s a lifter tap or chain slap. Also what can be the cause of the noise and how to fix it?
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Tuesday, November 17th, 2020 AT 12:00 PM

5 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
That could be one or the other. So can you increase the RPM and see if the noise gets faster or changes at all? Maybe get the exact same video with someone reving the engine.

Here is a guide that will help get us started:

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

Let us know and we can go from there. Thanks
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Tuesday, November 17th, 2020 AT 12:17 PM
Tiny
JAEDAV12
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  • 46 POSTS
Here you go:
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Tuesday, November 17th, 2020 AT 12:26 PM
Tiny
KASEKENNY
  • MECHANIC
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Awesome. That sounds like a timing chain slap to me. I would replace the tensioner and guides if they show signs of wear as well. I attached the process. Let me know if you have questions.
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Wednesday, November 18th, 2020 AT 5:38 PM
Tiny
JAEDAV12
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  • 46 POSTS
Thank you !
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Wednesday, November 18th, 2020 AT 5:39 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
You are welcome. Please come back to 2CarPros next time. Thanks
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Wednesday, November 18th, 2020 AT 6:02 PM

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