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Cadillac STS-V Series Forum Discussion, Possible Power Steering Issue in Cadillac V-Series Forums; Originally Posted by Guy.Seminerio Thanks Gregory. Thinking about it. There's definitely something rubbing/grinding that shouldn't be. Some kind of friction. ...
  1. #16
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    Re: Possible Power Steering Issue

    Quote Originally Posted by Guy.Seminerio View Post
    Thanks Gregory.

    Thinking about it. There's definitely something rubbing/grinding that shouldn't be. Some kind of friction. Especially because I feel the vibration not only in the wheel but in my left foot when it's sitting on the dead pedal. Whatever is grinding is causing enough vibration to allow me to feel that.

    And the fact that its only when I turn in one direction that I feel it has to be a big hint as to what it might be. I just don't know enough to diagnose. Ill report on noise tomorrow.
    Hello Guy.Seminerio,

    You are welcome! I agree that rubbing and grinding, especially only in one direction may not be a sign of something normal. We will be looking for your update tomorrow and on Monday. Thank you very much for your time.

    Gregory W.
    Cadillac Customer Care

  2. #17
    Guy.Seminerio is offline Cadillac Owners Connoisseur
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    Re: Possible Power Steering Issue

    Very slightly audible low pitch groan.

    I'm canceling my appointment with Cadillac. I don't know what I was thinking here. I've had nothing but bad experiences with this dealer.

    Right around the corner is this place that seems like a pretty tight operation. As soon as the lowering springs come in I'm going to have them change all 4 tires (the alignment severely screwed up my current rubber.) Already ordered the continental extreme contact dws front and back, nitrogen fill, road force balance, check all suspension components, diagnose and fix the steering issue, install the springs, alignment.

    I kind of already went into this subject with the service rep but I understand the alignment specs they're going to go with are not exactly optimal for tire wear and that they're really not supposed to deviate from the prescribed settings. But they're willing to go with my desired specs. I want them perfectly straight for minimal wear. Any advice on this?

  3. #18
    todrules is offline Cadillac Owners Fanatic
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    Re: Possible Power Steering Issue

    I don't know how aggressive our alignments are, but they do tend to cause uneven wear. On my previous M5 and 540i's the factory alignments do actually necessitate some negative camber which does help corner but tends to wear the outside pretty quickly. I actually had an aftermarket camber kit on my M5 that helped alot with the uneven wear. I doubt anyone makes such a kit for our cars, but I'm sure they can be aligned close to straight and with the springs I'm thinking you should be fine. Just my $.02.

  4. #19
    Guy.Seminerio is offline Cadillac Owners Connoisseur
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    Re: Possible Power Steering Issue

    Thanks. Somewhere on these forums someone said that the mfr specs call for a certain alignment that compensates for the road crown so customers don't complain thinking their wheel is pulling right.

    Someone else I talked to said the mfr specs call for a slight toe in for better straight line stability at speeds. Makes it less likely for the wheel to want to "wander."

    Not sure how true these things are but I don't care for them. Straight. Even tire wear.

  5. #20
    TimmyC is offline Cadillac Owners Connoisseur
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    Re: Possible Power Steering Issue

    You have to have some toe in or the car won't track straight. Camber can be zero for better tire wear though.

  6. #21
    Guy.Seminerio is offline Cadillac Owners Connoisseur
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    Re: Possible Power Steering Issue

    Thanks Tim. That seems to be what that 2nd guy was explaining to me.

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