Help! Fan Belt Tensioner (Adjustment) - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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  #1  
Old 08-19-2009, 08:28 PM
Roadaholic Roadaholic is offline
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Question Help! Fan Belt Tensioner (Adjustment)

Hi to all here I am new and love the help this site has provided me in my recent tune up!

Unfortunately, the drive belt tensioner got away from when removing the fan belt and is loose. I have tried messing with the bolt but cant seem to make it tighten up again. I am sure there is method without me having to take it to a shop. Please help! I cant find anything relevant to my post.
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  #2  
Old 08-19-2009, 09:02 PM
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MajesticLT03 MajesticLT03 is offline
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what exactly did you do?? All you have to do is stick a 3/8th breaker bar in the square hole and pull it towards the passenger side of the vehicle to get the belt off..


what bolts are loose?
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Old 08-19-2009, 09:28 PM
Roadaholic Roadaholic is offline
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I did use a 3/8 ratchet as it was all that I had at the time and loosened the belt to remove the alternator. But after replacing the alternator the belt is much looser than before. I tried adjusting the tensioner with the bolt next to the 3/8 slot for the breaker bar. But I am unsure of what I am doing and have tried to find several resources over the internet with nothing satisfying this question. I dont see how I can the belt snugged to the wheels again!
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  #4  
Old 08-19-2009, 09:39 PM
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MAY03LT MAY03LT is offline
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Quote:
Originally Posted by Roadaholic View Post
I did use a 3/8 ratchet as it was all that I had at the time and loosened the belt to remove the alternator. But after replacing the alternator the belt is much looser than before. I tried adjusting the tensioner with the bolt next to the 3/8 slot for the breaker bar. But I am unsure of what I am doing and have tried to find several resources over the internet with nothing satisfying this question. I dont see how I can the belt snugged to the wheels again!
Did you remove the tensioner assembly?
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  #5  
Old 08-19-2009, 09:46 PM
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Or is it no longer springy?

If you took out bolt #8, that wasn't necessary.

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  #6  
Old 09-25-2010, 10:20 AM
moparmusclecars moparmusclecars is offline
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fan belt tensioner

I took the tensioner all the way off. should I loosen the bolt and use a breaker bar to tighten it making sure it is still springy? If it isn't springy maybe I got it in the wrong slot where it rides. Any help would be appreciated.
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  #7  
Old 09-25-2010, 11:41 AM
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Quote:
Originally Posted by moparmusclecars View Post
I took the tensioner all the way off. should I loosen the bolt and use a breaker bar to tighten it making sure it is still springy? If it isn't springy maybe I got it in the wrong slot where it rides. Any help would be appreciated.
You do not remove any bolt,as in number 8 on roadie's pics.you use the 3/8 slot for the breaker bar,and its on a spring,just spring it down and let off of it when the belt is on,You probably need to get the spring back in the seat where it belongs to get it to work now,
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  #8  
Old 09-25-2010, 01:49 PM
ChevyTb2003 ChevyTb2003 is offline
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Quote:
Originally Posted by Roadaholic View Post
Hi to all here I am new and love the help this site has provided me in my recent tune up!

Unfortunately, the drive belt tensioner got away from when removing the fan belt and is loose. I have tried messing with the bolt but cant seem to make it tighten up again. I am sure there is method without me having to take it to a shop. Please help! I cant find anything relevant to my post.
lol i just saw this, did you put the wrong belt on? some have 150amp alternators some have 130amp i believe or 180. they are different sizes. you might have put the wrong one on.
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  #9  
Old 09-25-2010, 06:00 PM
WOOLUF1952 WOOLUF1952 is offline
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Originally Posted by ChevyTb2003 View Post
lol i just saw this, did you put the wrong belt on? some have 150amp alternators some have 130amp i believe or 180. they are different sizes. you might have put the wrong one on.
The difference is the size of the power steering pulley.

XL's and EXT's have a smaller pulley and shorter belt.
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  #10  
Old 09-25-2010, 11:44 PM
moparmusclecars moparmusclecars is offline
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Got mine taken care of today before I got home to read the reply, but thanks for the help! I bought a snap-on clutch fan remover tool you use a air hammer on. Tried the standard set of wrenches but it was too tight to get off. Took a few times but finally worked.
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