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Thread: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurring"

  1. #16
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    Quote Originally Posted by Ludacrisvp
    so actually open the hood and check it, so don't rely on an idiot light
    REGARDLESS of weather or not the car has an oil level sensor, you still need to check the oil manually. The message isn't triggered until the oil level is 2 quarts low.


  2. #17
    Akatate is offline Cadillac Owners Member
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    Re: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurr

    Ok, thx. I'll check it. My oil life % says 50 but I realize this doesn't indicate lvl.

  3. #18
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    Re: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurr

    Quote Originally Posted by Akatate View Post
    Ok, thx. I'll check it. My oil life % says 50 but I realize this doesn't indicate lvl.
    Which is why you should manually check it regularly as there isn't a level indication inside the car, and only a low oil message for 2qts low in the V8.

    Quote Originally Posted by MoistCabbage View Post
    REGARDLESS of weather or not the car has an oil level sensor, you still need to check the oil manually. The message isn't triggered until the oil level is 2 quarts low.
    I agree completely, I do check mine on a regular basis as with the 02 DTS Deville I was using about a quart every 1200 - 1500 miles (125k on the car at the time).
    On the 08 STS V8 I haven't seen it budge.

  4. #19
    EChas3's Avatar
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    Re: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurr

    They finally got the Northstar right for the XLR, SRX & STS.

  5. #20
    stevenriz is offline Cadillac Owners Enthusiast
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    Re: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurr

    The dealer checked it out and saw nothing. No codes and couldn't replicate the issue. I had since started using middle grade fuel. I also had the high pressure power steering hose replaced since I was going through a quart a month. Was that something I could have done myself? also had the cooling system flushed and new thermostat put in at the same time. So I guess I keep the thing for a little longer!

  6. #21
    EChas3's Avatar
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    Re: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurr

    The power steering hose can be hard.

  7. #22
    Guy.Seminerio is offline Cadillac Owners Connoisseur
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    Re: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurr

    The 2005 sts sae 100 has an actual oil life monitor, not based on some algorithm that reads your driving habits and estimates.

  8. #23
    Aurora5000's Avatar
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    Re: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurr

    I use mid grade and NEVER use ethanol..

  9. #24
    MoistCabbage's Avatar
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    Quote Originally Posted by Guy.Seminerio
    The 2005 sts sae 100 has an actual oil life monitor, not based on some algorithm that reads your driving habits and estimates.
    SAE 100?

    What kind of sensor can test oils ability to lubricate?

  10. #25
    Guy.Seminerio is offline Cadillac Owners Connoisseur
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    Re: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurr

    Oil life. How much oil you have left. Search the 2005 STS SAE 100.

  11. #26
    Ludacrisvp's Avatar
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    Quote Originally Posted by MoistCabbage View Post
    SAE 100?
    If only they would have made that one.
    Headlight and foglight setup was a nice set of LEDs.
    Likely is what was the proto type for the escalade platinum LED lighting. Also the instrument cluster used appears to also have been an early attempt at the CUE system.

  12. #27
    EChas3's Avatar
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    Re: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurr

    From what I saw, there was no trunk space.

    The OLM works just fine.

  13. #28
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    Deleted.

  14. #29
    Guy.Seminerio is offline Cadillac Owners Connoisseur
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    Re: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurr

    You can have the trunk space. Ill take the sae 100.

  15. #30
    Ludacrisvp's Avatar
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    Re: Weird knocking when coasting 20-30mph with light pedal; almost like car is "slurr

    Quote Originally Posted by Guy.Seminerio View Post
    You can have the trunk space. Ill take the sae 100.
    My sentiments exactly.

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