Loose Serpentine Belt???
I just replaced my Serpentine belt on an 08 e-350 following an tutorial that I found on an older thread. It wasn't too difficult. However,I noticed that on the tensioner pulley the belt slightly goes over the pulley about 1/10 of an inche. No matter how far i set the belt back as soon as I start the car the belt will move forward and remain at that position. I drove the car for about 20 mins and it seemed fine.
I checked all the other pulleys and they feel and look like they are all within the grooves. Also,I tighten the tensioner serval times,so I no it's not loose. Now,this belt is slightly wider than the belt that was replaced. Unfortunately,I had to opt for the cheaper one at my local parts store since they didn't have the better quality one at hand,and my belt visually looked like it was in terrible condition.
Now,is this something that I should be concerned about or is it fine?
Last edited by rs732; Jul 11, 2017 at 12:22 AM.


http://www.rockauto.com/en/moreinfo....440485&jsn=465
It's $120.79 and then if you use code 6471789857971574 for 5% off in the how did you hear about us box, it's $114.75.




Tensioner was perfectly fine at 60k and still very taught. The top idler pulley made a slight noise and I could hear the bearings when I moved it in my hand. Bottom idler pulley appeared to track smooth and didn't have any noises. At how cheap the idler pulleys are, you should just replace them. The tensioner is also cheap and easy to replace. They belt was $50 from FCPEuro.
Are you 100% sure everything is on correctly? The belt should fix itself if you turned the car on, if it keep going out of track like that then something needs replaced. The pulley WILL eventually wear through the belt since it's not 100% on the pulley it will create a wear spot where it's hanging off of it.
-Nigel
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http://www.rockauto.com/en/moreinfo....440485&jsn=465
It's $120.79 and then if you use code 6471789857971574 for 5% off in the how did you hear about us box, it's $114.75.

Amazon carries it, but it's $141.97. They're not always cheaper. Search retailmenot.com for the latest 5% off code, they have that all the time at rockauto.
It's the CONTITECH ADK0012P.
Amazon carries it, but it's $141.97. They're not always cheaper. Search retailmenot.com for the latest 5% off code, they have that all the time at rockauto.
It's the CONTITECH ADK0012P.
Does anyone have the the service manual. I just want to confirm the torque specs on the tensioner and pulleys.
Also,to remove the pulleys is it just a T-50 torx bit?
Last edited by rs732; Jul 27, 2017 at 09:59 PM.




