Vehicle Questions and Answers
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If your F-150 is making grinding sounds when turning, the issue could be related to the suspension or brakes. Some owners have reported hearing "squealing" or "rubbing" noises coming from the front passenger wheel hub when turning right. Possible causes include worn brake pads leading to metal-on-metal contact or a broken CV axle joint. Low brake fluid levels could also result in noise during turns. Interestingly, some Ford F-150 owners have discovered that grinding noises on the right side are caused by a vacuum line leak within Ford's "IWE" (integrated wheel end system) connecting to the front hubs. This system facilitates the shift between 2WD and 4WD modes. Cracks in the plastic lines can develop, creating noise when the wheels are turned without being driven forward.
The main issue with hearing a grinding sound while turning is typically due to the wheel bearings. Swapping out both sides on your truck should resolve the noise problem.