Q: front left pulling and weird sounds on 2004 Ford Explorer

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my truck recently feels as its pulling to the left. sometimes it does and others not. when i let off the gas its when it does it the most at higher speeds, also sounds like a humming noise.after 40mph its not so bad. had brakes and rotors checked and is fine. its an on again and off again thing. was told was maybe the 4 wheel drive was interfering. dont want to pay for a diagonist computer check, was wondering if i really needed it. any suggestions?
(1) Answer
Sorry to see you didn't get some help with this. Were you able to figure out the problem with your explorer? I doubt a computer diagnosis will tell you much, this sounds like a wheel bearing, drivetrain or suspension problem to me.