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Metal on metal scrubbing noise around water pump area

Tiny
CRAZY4ACHEVY
  • MEMBER
  • 2004 CHEVROLET TRAILBLAZER
  • 4.3L
  • V6
  • 2WD
  • AUTOMATIC
  • 160 MILES
Fan still runs and truck doesn't overheat. But noise is more frequent and getting louder. Clutch or water pump?
Saturday, July 13th, 2019 AT 1:04 PM

3 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

This could be a problem with your timing chain or the timing chain tensioners. In the diagrams down below I have included a guide on how to check and remove and install the timing chain tensioners. Please go through this guide and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros
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Saturday, July 13th, 2019 AT 1:24 PM
Tiny
CRAZY4ACHEVY
  • MEMBER
  • 1 POST
Thank you for your response.
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Monday, July 15th, 2019 AT 11:02 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Can you please shoot a quick video with your phone so we can hear the noise? That would be great. You can upload it here with your response. I have seen fan clutches cause this problem but I want to be sure.
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Monday, July 15th, 2019 AT 11:02 AM

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