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Ask Jared D Your Own Question
Jared D
Jared D, ASE Certified Technician
Category: Ford
Satisfied Customers: 1346
Experience:  Shop Supervisor at County Fleet
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When turning the steering wheel there is a terrible grinding

Customer Question

When turning the steering wheel there is a terrible grinding noise in the front drivers side tire area. If a very sharp turn is sort of shudders and grinds.
I can see a rubber ring? that looks like it has seperated from a gasket(?)
Submitted: 1 year ago.
Category: Ford
Expert:  Jared D replied 1 year ago.

What you are describing sounds like one of the front hubs is malfunctioning. I assume the vehicle is 4wd?

Expert:  Jared D replied 1 year ago.

The hubs on the 2005 F250s are vacuum controlled and if the vacuum line leaks of the seal ruptures the hub will engage (lock in). With one hub locked and the other free it makes a terrible grinding noise.

Here is a diagram showing how the system works. The hub will probably need to be replaced if you can see the seal sticking out.

Customer: replied 1 year ago.
Four wheel drive
Expert:  Jared D replied 1 year ago.

Yeah, it's probably going to need a new hub actuator assembly on that side.