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Thread: car sways very slightly at highway speeds. 96 civic.

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    aunali9's Avatar
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    Default car sways very slightly at highway speeds. 96 civic.


    hey guys,

    my car sways very slightly at high speeds, in excess of around 90kmph. it moves left to right only very slightly, as though its getting buffeted around in wind. it smoothly glides left and right with no unusual sounds or anything or bouncing around. it does give me a small scare because i obv dont want to loose control of it. the steering wheel moves with it. its not a large deviation though and doesnt happen at low speeds. what does happen though is that if i hit a large cat-eye or a small pothole, the steering moves by its self. its not enough to make me loose control but i have to grip the steering wheel. the tires and rims are brand new. barely run 30 km yet. yesterday it was making a hell of a racket driving in a straight line and turning to the right, but remounting the engine sorted it out. now its silent and there are no vibrations. just this swaying issue.

    i hope its not a engine mount problem persisting, and could it be because of worn shocks and springs?

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    Xulfiqar's Avatar
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    lift up the car securely and get yourself a big bad a$$ metal lever (tyre iron, rod etc) wedge behind the bushings and ball joints etc, and try to move them in all directions - not like a 100 lb girl - move them like a railway worker moves the ballast planks. If they move, the item is bad - replacement required.

    This can also be due to the rear suspension trailing arms and hub bushings. In most cases in Pakistan its the front ball joints and the steering rack mountings, If its the lower joints, get brand new ones - they are not very expensive, the upper ones are built into the arm and do require replacement of the whole arm, you can get repaired ones too, but the problem is that you need to have a very good tradesman who has good tools and working technique. <---- This is rare.

    The lower arm rotating bushings need to be tightened whilst the arm is in driving position, otherwise they will tear out in less than a few months, same for the strut foot mount bushing in the arm, but it does not rotate as much hence is longer lived. Every nut and bolt threads should be chased with a tap or buffed clean before tightening. Buy a torque limiting ratchet aka torque wrench and tighten like the factory tells you.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    alright. will do this right after eid. i would however like to mention that today i was driving on sea view. on the road ahead of village. i waited for the road to get completely empty then touched 130ish. but the swaying was gone... it happened on seaview the night before that though at around 80 only.

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