Strange noise
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Strange noise in Past Cadillac Vehicle Discussion; Hello all, I have a 2003 deville dts 147k. It seems like whenever the steering wheel is straight, I get ...
  1. #1
    reppinshadyvill is offline Cadillac Owners Fanatic
    Automobile(s): 2003 DTS
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    Strange noise

    Hello all, I have a 2003 deville dts 147k. It seems like whenever the steering wheel is straight, I get a king of high pitched vacuum noise but if I turn the steering wheel even slightly off center the sound goes away. I was thinking that maybe there was some kind of steering assist that was being bypassed with the wheel straight, but that's just a guess. No power steering leaks at all. Just wondering if anyone knows what this sound is.

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  3. #2
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
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    Re: Strange noise

    check your brakes - it could be the wear indicator -

    it could also be a failing wheel bearing -

  4. #3
    reppinshadyvill is offline Cadillac Owners Fanatic
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    Happens even when I'm in park. It's strange I thought it was the a/c at first but I found the link to the steering wheel the other day. Kind of sounds like when you turn the car off and the a/c depressurization but its constant.

  5. #4
    Team ZR-1 is offline Cadillac Owners Member
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    Re: Strange noise

    Did you check to see if the power steering fluid is proper level and fluid looks good
    Also if the belt is slipping on pulley for PS pump.

  6. #5
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: Strange noise

    Hate to ask the obvious, but

  7. #6
    reppinshadyvill is offline Cadillac Owners Fanatic
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    Power steering fluid level is good. Not sure if the fluid has ever been changed but it doesn't look filthy. I don't think it's a belt slip issue. Especially since I only get the noise when the steering wheel is perfectly straight. Car has always done it in the year that I have owned it. Just wondering if anyone else has ever experienced this.

  8. #7
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    Can you make a video of the noise?

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