Heavy steering Vibration at low speeds while turning.
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This is a discussion on Heavy steering Vibration at low speeds while turning. within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; 2007 STI - 67K miles Ok what would you check first? This isn't something I've really dealt with before but ...

  1. #1
    Registered User nosoupfoyou's Avatar
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    Red face Heavy steering Vibration at low speeds while turning.

    2007 STI - 67K miles
    Ok what would you check first? This isn't something I've really dealt with before but it seems to be getting worse very slowly..

    Usually when turning left I get heavy vibration in the steering wheel, and some light power steering moaning. The wheels must have good traction to cause the issue. IE if there is snow in the corner, starting from a stop, it is smooth but as soon as I round the corner if I hit dry pavement the vibration comes in until I straighten it out. Low speed corners will cause it the worst. Bumpy or crappy road conditions even when going straight will cause it to a lesser degree than slow turns (like under 10mph).

    Stock rims, snow tires wearing evenly (havent checked balance or alignment), Factory suspension and all parts included in the hubs, axles, etc. Feels like it has more to do with driver front wheel.

    Ball joints?

    2007 UGM WRX STi - Limited 65k
    PSN : MileHiTattoo
    facebook.com/paul.berkey


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    Admiral Ackbar the 1st mycologist's Avatar
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    Maybe CVs, but it sounds like a differential problem more. They are difficult to diagnose:

    Center Diffs and How To Replace Them - Subaru Forester Owners Forum

    I'd change the fluid ASAP and see if that helps.

    If it turns out to be an axle these guys are the only ones I know of besides new OEM ($$) that won't cause vibrations etc. (used on our Outback and read many reviews)

    MW Enterprises, quality remanufactured Subaru Axles
    "From a little spark may burst a mighty flame." - Dante
    "The stitch is lost unless the thread is knotted." - Italian proverb

  4. #3
    Registered User nosoupfoyou's Avatar
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    Ok well thank god it's not a diff as that was serviced just recently. After really playing with the car to try and figure it out today, I realized I could get the vibration stutter while sitting at a stop and cranking the wheel quickly toward the end of each directional rotation. Seems like pressure stutter is causing the vibration in the wheel. So I figured the fluid was either really dirty, wrong viscosity, or I have a leak in the system somewhere.

    I syphoned all the power steering fluid out as it did look pretty dark, then replaced the fluid. Turned the wheel back and forth 40 times or so, still vibrations.. but better. Re-did this process one more time and I would say it's almost 100% better now. Probably drive it for a week and redo it one more time to get all the old fluid out.

    2007 UGM WRX STi - Limited 65k
    PSN : MileHiTattoo
    facebook.com/paul.berkey


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    Registered User nosoupfoyou's Avatar
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    I appreciate your links! --good info.

    2007 UGM WRX STi - Limited 65k
    PSN : MileHiTattoo
    facebook.com/paul.berkey


  6. #5
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    Just had the same issue on an 08 wrx. Rack and pinion were replaced and THATS when it started. They bled the fluid and problem solved. Sounds like you definitely nailed the issue. Hope it does work it all the way out!

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