Power Steering Noise after serpentine belt change - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 11-14-2019, 09:34 AM Thread Starter
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Power Steering Noise after serpentine belt change

The belt tensioner on my 2008 F250 6.4L broke and mostly shredded my serpentine belt. I heard the noise on start up and quickly shut the truck off. I could see parts of the belt were wrapped around a bunch of the pulleys. I was about 5 miles from home so had a buddy chain up and drag me home (never gonna hear the end of it, he drives a dodge). I left the truck off and strong arm steered and braked the whole way.

In the shop, I removed the old belt, replaced the tensioner, and removed the alternator and its pulley, it had the worst amount of old belt wrapped around it and wouldn't spin freely. I put everything back together and everything ran great for about 10 min. After the truck was warm on the test drive, I started to hear a groaning/whining and feel a vibration when turning the steering wheel and pressing the brake pedal. My reading tells me the power steering pump works with the brake system as a booster, so I am assuming its the power steering pump.

Any thoughts on where to start? These are my questions and confusions:
>Why would it only start to have problems once the truck is warm?
>It also seems like the new belt tensioner is bouncing a lot, I never noticed much movement with the old one, but also never paid much attention to it. How much should the belt tensioner be moving? Is the new tensioner bad so the pump isn't getting enough power, or maybe another stuck pulley so the belt is slipping?
>Did I mess up by towing the truck w/o the engine on and break something?

Any advise would be appreciated. Thank you.
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post #2 of 2 Old 11-14-2019, 12:33 PM
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I think I'd start by going back under the hood to make sure there isn't any belt fragments "hiding." I shredded a couple of belts on my '01 BEFORE I figured out it was the tensioner. I found belt pieces in places I didn't think were there to get belt pieces.
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