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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Help with grinding sound only in 4 wheel drive
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<blockquote data-quote="FordTechOne" data-source="post: 2024268" data-attributes="member: 35543"><p>Can’t hear anything in the video so just going by your description.is the truck completely stock? It sounds like the shop was throwing parts, the only way to accurately pinpoint a noise that can’t be diagnosed by ear/feel is by using chassis ears. Basically a microphone that mounts to a component via magnet or clip and amplifies the noise.</p><p></p><p>Driveshafts act as a transfer path conductor for noises. Since the noise is not present with the driveshaft removed and they already threw a transfer case at it, it’s likely a differential, IWE, or wheel bearing that is causing the noise. A concern with any of those components can change in intensity when torque is applied in 4WD. </p><p></p><p>One often missed component is the small bearing on the end of the axle shaft within the wheel bearing; when they get contaminated or worn they will make a sound similar to what you’re describing.</p></blockquote><p></p>
[QUOTE="FordTechOne, post: 2024268, member: 35543"] Can’t hear anything in the video so just going by your description.is the truck completely stock? It sounds like the shop was throwing parts, the only way to accurately pinpoint a noise that can’t be diagnosed by ear/feel is by using chassis ears. Basically a microphone that mounts to a component via magnet or clip and amplifies the noise. Driveshafts act as a transfer path conductor for noises. Since the noise is not present with the driveshaft removed and they already threw a transfer case at it, it’s likely a differential, IWE, or wheel bearing that is causing the noise. A concern with any of those components can change in intensity when torque is applied in 4WD. One often missed component is the small bearing on the end of the axle shaft within the wheel bearing; when they get contaminated or worn they will make a sound similar to what you’re describing. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Help with grinding sound only in 4 wheel drive
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