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Belt tensioner Bolt

Tiny
CJISTOOOLD
  • MEMBER
  • 1995 PONTIAC BONNEVILLE
  • 2.0L
  • V6
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
What is the exact size of the socket needed to move the tensioner to relieve the spring load to replace the serpentine belt?
Sunday, September 26th, 2021 AT 10:26 AM

3 Replies

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

You will need a 15 mm socket for that bolt. Keep in mind that is the factory size bolt for these year vehicles. If the tensioner was replaced with a aftermarket component it could be a different size.

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

Please let me know of any questions.
Thank you.
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Sunday, September 26th, 2021 AT 10:35 AM
Tiny
CJISTOOOLD
  • MEMBER
  • 6 POSTS
Thank you. I replaced the tensioner a while back but can't remember the size bolt and I used the original bolt on the reinstall. I had a couple of sockets that fit but did not want to strip the bolt pattern. Thanks again. CJ
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Sunday, September 26th, 2021 AT 10:46 AM
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
You are welcome. Let me know if you have any questions.
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Sunday, September 26th, 2021 AT 10:55 AM

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