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replacing ac idler pulley...

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Old Dec 24, 2010 | 12:09 PM
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Default replacing ac idler pulley...

So i need to replace mine, as its making alot of noise now. I bought the parts off RockAuto.com. Now looking to replace them, havent got new belts though. Should i get new belts while im at it, or just change them now and get new belts later on?

Now to replace them. All i have to do is, pull of the belts, get under the car and remove the bolt thats holding the ac pulley on there. Pull it off, put in new pulley, put bolt and belts back on and im done? Is this right? Or is there more to it? Just want to be sure as ive never had to mess with them.
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Old Dec 24, 2010 | 12:17 PM
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yep thats pretty much all ya need to do. I replace the a/c belt at the time too. mine was old anyway.
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Old Dec 27, 2010 | 06:58 AM
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the bottom a/c pulley is the tension.......the top is idler.......both are the same size and P/N......the top 1 has that dammm torx 50 bolt that never wants to come out so be veeeeeery careful with it
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Old Dec 27, 2010 | 09:14 PM
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how did it go?
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Old Dec 28, 2010 | 05:25 PM
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yeah mine was squeeling like crazy durring finals week so i just pulled the belt off for now haha.. i need to grease it or get a new one..
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Old Dec 29, 2010 | 02:06 PM
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Originally Posted by Badguy7
So i need to replace mine, as its making alot of noise now. I bought the parts off RockAuto.com. Now looking to replace them, havent got new belts though. Should i get new belts while im at it, or just change them now and get new belts later on?

Now to replace them. All i have to do is, pull of the belts, get under the car and remove the bolt thats holding the ac pulley on there. Pull it off, put in new pulley, put bolt and belts back on and im done? Is this right? Or is there more to it? Just want to be sure as ive never had to mess with them.
If the pulley is whining you can take the pully off, pop the cover off the back of it and clean it out. Most likely there is dried up grease inside and along the bearings. I used a pick and some cloth to get most out the best I could. Add in some hitemp all purpose grease, snap cover back on and install. You should need to buy another pulley unless it's fubar.
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Old Dec 29, 2010 | 04:06 PM
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I still havent got that Torx out! Good luck to you!
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Old Dec 30, 2010 | 12:02 AM
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FYI, if the squeaking does not stop, you may need a new tensioner. But hopefully it will work out for you. I would put some anti-seize on the bolt before you put the idler back in so you can remove it easier next time.
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Old Nov 23, 2011 | 09:18 PM
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Does anybody have a part# for the AC idler and tensioner pulleys?
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Old Nov 23, 2011 | 09:43 PM
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^^ what brand?
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Old Nov 23, 2011 | 09:48 PM
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I purchased 2 of these

http://m.summitracing.com/parts/GTR-49021

Did I buy the right pulleys?
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Old Nov 23, 2011 | 09:55 PM
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when i did mine i got them off of rock auto, dayco ac idlers they are are the same for both the idler and tensioner
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Old Nov 23, 2011 | 10:14 PM
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Both pulleys I purchased from Summit are identical to the pulley pictured below.


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Pulley to the left above both AC idler/tensioner pulleys

Summit states that part# 49021 is the AC idler pulley
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Old Feb 11, 2015 | 07:20 PM
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did that pulley from summit work for you? sorry to dust off this old thread
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Old Feb 11, 2015 | 08:33 PM
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I replaced both of my A/C idlers with goodyears because I wanted to keep a stock looking pulley without forking over for ACDelco The PN is 49159 from Goodyear, works on the A/C tensioner aswell.

Edit: Corrected Part number, it is 49159 NOT 49006 .. 49006 is the Serpentine Idler near the Alternator for 98 - 99 and some of the 2000's.
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