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Q: Tensioner vs pulley replacing on 2001 Dodge Ram 1500

My tensioner has started making noise and I just noticed at autozone.com that I could by the pulley or the whole assy. Any thoughts on replacing just the pulley or should I do the tensioner too? Do I have to take very much off to do the tensioner.... That would have a lot to do with my decision LOL
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Are you sure the tensioner is the problem? How is the condition of the belt and the pulleys? Look at this earlier question, it is for a different car, but the basics still apply to your vehicle.
http://repairpal.com/serpentine-belt-falling-off-351
Nice diagnosis, sounds like you got it. I'm not sure the pulley listed on AutoZone is for the tensioner or if it is the idler pulley though.
Yes I check the belt, I replaced it about 2 months ago, as it was really squealing. Then the noise started again, but this a.m. it turned into a whirring noise (bearing probably). So I sprayed some silicone onto the bearing from the rear and the noise stopped.
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