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'02 Pontiac Grand Prix 3.1 belt tensioner not lining up


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ASG5911
New User

Mar 7, 2013, 8:55 AM

Post #1 of 10 (1435 views)
'02 Pontiac Grand Prix 3.1 belt tensioner not lining up Sign In

serpentine belt broke, replaced. noticed that original tensioner didn't match up, thought it was bad, replaced. same problem with new one. all pulleys line up, tensioner is the odd man out. Crazy am I missing a spacer?








Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Mar 7, 2013, 9:09 AM

Post #2 of 10 (1427 views)
Re: '02 Pontiac Grand Prix 3.1 belt tensioner not lining up Sign In

Strange. There is an AC Delco tensioner and a Gates tensioner for a 4 door that looks like it is thicker.

Gates p/n 38353:








Compare your new tensioner to your old one, might not be the right one.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Mar 7, 2013, 11:07 AM

Post #3 of 10 (1396 views)
Re: '02 Pontiac Grand Prix 3.1 belt tensioner not lining up Sign In

Looks to me like your harmonic balancer may be migrating out.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Mar 7, 2013, 11:28 AM

Post #4 of 10 (1389 views)
Re: '02 Pontiac Grand Prix 3.1 belt tensioner not lining up Sign In

It sure does....good catch HT





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


Tom Greenleaf
Ultimate Carjunky / Moderator
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Mar 7, 2013, 11:46 AM

Post #5 of 10 (1379 views)
Re: '02 Pontiac Grand Prix 3.1 belt tensioner not lining up Sign In

Top post said the failed one and new one were the same is a strong clue! As DS said - good catch HT,

T



ASG5911
New User

Mar 7, 2013, 12:17 PM

Post #6 of 10 (1369 views)
Re: '02 Pontiac Grand Prix 3.1 belt tensioner not lining up Sign In

thanks for the info guys! is this a situation of tightening it or is it more serious?


Tom Greenleaf
Ultimate Carjunky / Moderator
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Mar 7, 2013, 12:28 PM

Post #7 of 10 (1364 views)
Re: '02 Pontiac Grand Prix 3.1 belt tensioner not lining up Sign In

NO! You replace those not fix them! There's vulanized rubber between metal that can fail. Know that if that falls off there's no telling what damage could happen too,

T



ASG5911
New User

Mar 7, 2013, 12:38 PM

Post #8 of 10 (1361 views)
Re: '02 Pontiac Grand Prix 3.1 belt tensioner not lining up Sign In

gotcha, that's why I asked the question. thanks for the help!


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Mar 7, 2013, 12:42 PM

Post #9 of 10 (1360 views)
Re: '02 Pontiac Grand Prix 3.1 belt tensioner not lining up Sign In

By your pics for the exact car looks like you have room - it requires a puller rent-able if you want to do it yourself. Some (can't know all) you can get at thru a wheel well if too tight - dunno for sure on this exact one. Good luck - bet if you take a hard look you can verify that is in fact the problem,

T



ASG5911
New User

Mar 7, 2013, 12:58 PM

Post #10 of 10 (1356 views)
Re: '02 Pontiac Grand Prix 3.1 belt tensioner not lining up Sign In

yeah that is definitely the problem.






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