Popping in the front end when turning? - Ford Powerstroke Diesel Forum
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Old 01-16-2013, 02:09 PM
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Popping in the front end when turning?

I noticed a popping sound when I turn the truck. It almost sounds and feels like when you leave it in 4x4 and turn on the pavement. It is not in four wheel drive as far as I know the hubs are in the auto position and the selector switch is in 2wd. It happens either way i turn. What could be the problem?

Will
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Old 01-16-2013, 02:16 PM
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A number of things...ball joints, tires rubbing wheel well or leaf springs, wheel bearings, or any of the other suspension components used to turn the vehicle. Basically a shot in the dark without a video that demonstrates the sound.

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Old 01-16-2013, 02:18 PM
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I had similar issues. Try looking under the hood on the passenger side there is a little box. I was told it is the vacuum system for the 4x4. I had a broken wire on the wire harness. That would be my next place to look.
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Old 01-16-2013, 02:23 PM
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All because your hubs are in auto and the switch is in 2wd does not mean that your hubs are unlocked. The hubs (if they are stockers) are operated by the vacuum pump and some switches. The vacuum line to the hubs may be clogged or a switch is not operating properly and your hubs are staying locked. Jack up the front of the truck, leave the hubs and switch just like they are now, and turn the wheel by hand. If the driveshaft turns then they are still locked. If that is the case I will put money on you u-joints on the front drive shaft are bad.

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Old 01-16-2013, 06:18 PM
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Same thing happens to my truck every now and then. On mine it's because the 4x4 doesn't fully disengage so I have to manually turn the hubs to 4 wheel then back to auto. Usually fixes it after a couple tries
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Old 01-16-2013, 06:32 PM
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The reason that I put warn hubs in mine was because the stockers never would disengage and it wore out my u-joints.

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