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I've got a 2004 F150 Supercab with 105k miles that is making a road noise that I can't identify. Two mechanics have looked at the front end and told me the bearings were okay. It's got brand new Michilens on it as of right now and is still making a grrring sound, especially on right hand turns. The noise seems to go quiet on left hand turns and is present at most speeds but kindof intermittant as how loud it is.
The rear axle bearings and seals were replaced yesterday as one mechanic said that was causing the noise - but it's still present. Any ideas?
Are you sure it's not your power steering? Try turning the steering wheel lock to lock and see if the noise is still there. Alto try running the engine speed up to 1000-1500 rpm and do it again and see what happens
Check the left front bearings. When you turn right you load the left side and when turning left you unload the left side.
Maybe you need a new mechanic?
Off the top of my head......new tires, did you go bigger and have tire rub? What about brake pads and rotors. Warped rotors will make noise on turns and vibrate during stops.
The note about the power steering is a good one. I'm not sure about the newer ones but them older ones made hellacious noises sometimes.
whe i first bought my 06 when we took it out for a test drive i noticed my truck doing that, the sales man said it was clutch packes in the rear end, and said they would fix it b4 i came to pick up the truck, first thing i did when i jumped in the truck was take some hard turns and it all sounded good, no more grinding sound anyways.
if it is a 4x4 it could be one of your front CV joints, where is the noise coming from, passenger side or drivers side? Does it only happen while you are turning right?