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Old 12-11-2011, 05:15 AM
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Squeaky Belt

My belt was squeaking when I got my truck and after belt dressing didnt help I took it to Ford and they replaced it, well, 17k miles later it is now squeaking again, belt dressing will stop it for about 30 minutes and then it comes back, anyone else having this problem or even better do you have a cheaper solution than replacing the belt every 17k miles. Thanks!
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Old 12-11-2011, 05:48 AM
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Are you sure it's the belt and not one of the tentioner or idler pulleys.
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Old 12-11-2011, 05:54 AM
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Mine has a squeek too.. its so hard to tell if its belt or a pulley cuz this motor is so darn loud. what is the best way to diagnose a belt squeek?
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Old 12-11-2011, 07:16 AM
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The only reason I think it is the belt is because after Ford installed a new one it has never squeaked since, until last week.
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Old 12-11-2011, 07:48 AM
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Belt squeaking can be causes by dirt/debris/grease in the ribs of the belt or pulleys.

As belts get older with use, they stretch. This is where the tentioner pulley comes into play to take up the slack. It maybe possible the new tighter belt put enough tension on the pulley system to stop the squeaking, now as you belt stretched, it found that sweet spot where the tention pulley is not as strong and is putting less pressure on the bearings in the tension and idler pulleys.

You can look for visual signs of bad tension/idler pulleys. Look for grease splatter coming from the pulley bearing, and if they are really bad you can see brown rusty dust.

You can also try and clean the belt, remove the belt and use a bucket of soapy water (Dawn or a degreaser soap), then scrub out the ribs on the belt and pulleys then rinse with clean water and let dry. Reinstall belt.

You can also CAREFULLY use a stethoscope or a hose to pinpoint the squeak.
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Old 12-13-2011, 04:47 PM
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Yup same thing with mine, took it in they gave me a new belt and it went away for a while but its back.Not sure if this is correct but I read somewhere to try baby powder on the belt if the squeak goes away its the belt,if it stays tensioner bearing.I tried it and the squeak did go away but it shows back up the next day.
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