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Thread: Engine sounds wierd, can someone help me out

  1. #1
    Join Date
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    Engine sounds wierd, can someone help me out

    This started happening about a week or two ago. At idle I hear my car around the engine part a knocking sound. It sounds like a hollow pipe knocking. When I run my car the knocking goes away but when at idle it comes back. It is a deep knock and constant also, it doesn't get louder or anything.
    Can anyone help me out?

    Thanks
    Khoa
    Clear Corners and Tires are not considered a modification.

  2. #2
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    How's the oil pressure? Gotta gauge? Seen a change?

  3. #3
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    What year is your car? Mileage? I assume you have an M3
    1995 Cosmos M3

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  4. #4
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    Is the noise there when the AC is off or only when it's on?
    Let me get this straight... You are swapping out parts designed by hundreds of engineers that get paid thousands of dollars for something you bought at Pep Boys because your buddy who doesn't have a job told you it was 'better'?!?

  5. #5
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    I have the AC problem I still need to get it fixed.

    Hey Khoa, have you popped the hood to try and figure out where in the engine bay the sound is coming from?
    ~Chris

  6. #6
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    I popped the engine up and can't figure out where it is coming from but the engine. The oil is full and fine. I don't have a pressure gauge for the oil at all either. The noise is there with and without the A/C on.
    Clear Corners and Tires are not considered a modification.

  7. #7
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    Is it a loud hollow "thud" type knocking? or a metallic, clangy knocking?
    ~Chris

  8. #8
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    its like more of a thud noise.
    Clear Corners and Tires are not considered a modification.

  9. #9
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    I'm betting that something is loose or worn which is causing something to bump around when it's not supposed to.

    Hope your mechanic figures it out dude.
    ~Chris

  10. #10
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    My car is haveing the same exact problem. Did you ever figure out what was wrong?

  11. #11
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    noise

    Did you ever find out what it was?

  12. #12
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    Do you guys realize this thread is 4+ years old??

  13. #13
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    Quote Originally Posted by Mr. White View Post
    Do you guys realize this thread is 4+ years old??
    Then it should be an ample amount of time to locate the problem, I would think. Right?

  14. #14
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    Quote Originally Posted by schnitzer325 View Post
    Then it should be an ample amount of time to locate the problem, I would think. Right?
    +1

  15. #15
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    The OP hasn't been logged on since 10/7/04.

  16. #16
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    For what it's worth, the strange knocking noise I recently had was caused by loose spark plugs.

  17. #17
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    Quote Originally Posted by cmartin93 View Post
    For what it's worth, the strange knocking noise I recently had was caused by loose spark plugs.
    Thanks. I'll be checkin that.

  18. #18
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    not to beat a dead horse but I had a simliar sound awhile back and it turned out the crank pully bolts had come loose a little.
    Bring MoneyWith you.

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