Question about 2001 GMC Sierra Crew Cab

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Thunk is steering wheel on my 2003 GMC sierra

When I spin the steering wheel to turn there is a loud thunking noise and feel through the steering colum

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Posted on Jun 30, 2009


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1992 GMC sierra two wheel drive 4.3l V6 Have a vibration or rubbing noise when I turn the steering wheel sharply to the left at parking lot speeds.

If you let go of steering wheel and step on brakes does the wheel vibrate?

I'd say its either warped rotors, power steering malfunction, or possible wheel bearing, although if wheel bearing you should feel/hear a hum which would get louder depending on which way you turn the vehicle.

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Possibly a bad strut alowing the tire to bounce that is only happening under certain driving conditions. May also have the tires checked, one may have a fat spot or knot on it that worsens as the tire gets warmer after driving it for a while. Hope this inforamtion is useful to you. Good Luck!

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Check to see if your cv boots are torn. Each tire has a black boot on each side check them for holes if so replace boot before damage. it may be too late. It couls be a cv joint.

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My first guess would be the front u-joint on the drive shaft. Try twisting the u-joint to see if there is any play, which there shouldn't be. If the u-joint is OK, have the transmission checked out at a reputable shop. There could be a problem with the torque converter, the valve body, or the bands. You didn't say whether this was a 4 wheel drive or not, but I doubt that the problem is with the transfer case. Let me know what you find.

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