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Discussion Starter · #1 ·
Has what sounds like a whining pully. Is there something I can just spray and see if the noise will go away? Don't know if good ol' wd-40 will work since does have the belt running on it. Don't want it to slip off while driving.
 

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archTech
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This turns out to typically be the tensioner pulley (keeps tension on the belt). Spray some WD-40 in the bearing...cener portion of the pulley (while the engine is off) and see if that stops it.
 

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Discussion Starter · #3 ·
I am going to try that tonight. I tried listening for it but with the fan blowing its hard to determine which one is making the noise. Thanks.
 

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The WD-40 will only be a temporary fix. Your better off just replacing the pulley. They are very easy to take off and very inexpensive. I was fortunate enough to hitch hike 15 miles one day because I figured the WD-40 was all it needed.
 

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archTech
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chunk and reel said:
The WD-40 will only be a temporary fix. Your better off just replacing the pulley. They are very easy to take off and very inexpensive. I was fortunate enough to hitch hike 15 miles one day because I figured the WD-40 was all it needed.
Agreed...if the WD-40 stops it then you know what to fix. You can also take the tension off the belt and if the tension pulley is bad, they will typically woble from slack in the bearing.
 

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bwguardian said:
This turns out to typically be the tensioner pulley (keeps tension on the belt). Spray some WD-40 in the bearing...cener portion of the pulley (while the engine is off) and see if that stops it.
I agree. My old '99 Z-71 was making the whining noise for alittle over a week and the tension pulley finally gave way. It was a few years back but I bought a new belt and pulley for about $125 give or take. Very easy fix but when the pulley goes out don't drive it. The truck will start to overheat within a matter of minutes.
 

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Discussion Starter · #7 ·
ok, the wd-40 fixed the noise. guess its time to replace the pully before it goes out. Thanks for all the replies.
 

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archTech
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Gilbert said:
ok, the wd-40 fixed the noise. guess its time to replace the pully before it goes out. Thanks for all the replies.
Yep, release the tension on the belt, remove the pulley assembly, and replace. You may be able to replace the bearing only instead of the whole assembly. It is an easy fix, so do it sooner than later as it will leave you stranded and cost more to fix once it decides to let go.
 
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