OBS_Raptor
Member
Okay let me start by saying, i bought this truck knowing it had front end issues, This was probably the cheapest clean title second gen with under 200k miles, it clocked 99k miles on the drive home. Its a 2017 fully loaded minus carbon package, one owner Texas truck with phenominal service records and a spotless Carfax. The owner was having front end grinding noise but was moving out of country next day and needed to sell it, so i sold my 2001 6.0 PowerStroke and bit the bullet on my dream truck, the raptor. Now, here is the problem. At any speed over 10mph the front diff is howling, almost grinding. It does it in 2wd, 4wd, 4hi, 4lo, 4a. The noise gets worse when turning at speed. Ive read for hours about the IWE issues and i didn't think that was my issue, but for the sake of trying it, i replaced the fitting above the brake booster with an OEM MotorCraft part. This changed nothing... anyone got an idea on things I can test or things it my be? Im taking it into a 4WD shop next week for diagnosis but will most likely fix it myself. Thanks in advance