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Kevin C.
Kevin C., Subaru Master Tech.
Category: Subaru
Satisfied Customers: 1727
Experience:  34 years of Subaru service experience, ASE Master Technician.
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Subaru Forester L: Subaru Forester knocking noise from rear

Customer Question

Subaru Forester knocking noise from rear under load, possible rear differential problem?
Submitted: 5 months ago.
Category: Subaru
Expert:  cardoctor74 replied 5 months ago.
These have many rear differential issues.Was the fluid ever changed and strained to see if there is ant metal particles in the fluid?
Customer: replied 5 months ago.
I think this is the first time the differential oil has been checked. The vehicle has done 125,000 Km. The oil has a small amount of metal in it but it does not appear excessive for this mileage. There was only a small amount of metal trapped by the magnet.
Expert:  cardoctor74 replied 5 months ago.
Ok if there were no large chunks of metal it can be the internal differntial plates failing have you changed the fluid and still have the same issue?

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