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Thread: Tick-tick- tick noise when AC running-cause?

  1. #1
    Join Date
    Jan 2004
    Location
    Lexington, Kentucky
    Posts
    2,561

    Default Tick-tick- tick noise when AC running-cause?

    At idle, I noticed a tick-tick-tick noise only when the ac is running. When the AC is off there is no noise. Just noticed it today! Cools fine. Belts and all pullies and tensioners fairly new. Did not see any wobbles on AC cluthc or tensioners. Cycles on/off fine. Any ideas? Archives were not conclusive.

    I sure hope I am not developing a list of new problems.

    TIA
    Thanks,

    1995 525i Auto, M50TU 2.5L, EAT chip, 1/95 build, USA, 205/65/15 tires, ASC+T, HID, lumbar, EC Mirror, BMW Alpine 5 radio with BMW-Pioneer CD Changer, abt 236k miles, Oxford Green/Parchment

  2. #2
    Join Date
    Jan 2005
    Location
    Chicopee, MA
    Posts
    263

    Default

    Have same problem with mine since I got it.

  3. #3
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,839

    Default

    maybe the belt?
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  4. #4
    Join Date
    Feb 2004
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    4,894

    Default

    Usually it is the belt.

  5. #5
    Join Date
    Jan 2004
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    Lexington, Kentucky
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    2,561

    Default my thought as well

    At least I hope it is the belt. It is only about 15,000 miles old.

    Quote Originally Posted by Tiger
    Usually it is the belt.
    Thanks,

    1995 525i Auto, M50TU 2.5L, EAT chip, 1/95 build, USA, 205/65/15 tires, ASC+T, HID, lumbar, EC Mirror, BMW Alpine 5 radio with BMW-Pioneer CD Changer, abt 236k miles, Oxford Green/Parchment

  6. #6
    Join Date
    Dec 2003
    Location
    baton rouge, loserana
    Posts
    6,922

    Default

    belt with a chunk missing or the tensioner shock for the ac belt
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  7. #7
    Join Date
    Feb 2004
    Posts
    4,894

    Default

    Shock bad or tensioner wheel bad usually sounds like rattle instead of ticks.

  8. #8
    Join Date
    Dec 2003
    Location
    baton rouge, loserana
    Posts
    6,922

    Default

    when you've seen as many of those things die as i have you get to see and hear some unusual stuff, this last saturday we had a 95 525im come in for a set of new headlights, and we just happened to notice the plastic roller was gone on the tension roller at the alternator, and the belt was running on the metal center bearing race, it had to of just happened because the belt wasn't totally eaten up yet, the mystery is that it was able to **** all of the moving parts off the roller without throwing the belt AND without alerting the normally perceptive driver (she usually catches things real soon) weird **** happens

    Quote Originally Posted by Tiger
    Shock bad or tensioner wheel bad usually sounds like rattle instead of ticks.
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  9. #9
    Join Date
    Jan 2004
    Location
    Lexington, Kentucky
    Posts
    2,561

    Default

    Will check for sure Now!
    Thanks,

    1995 525i Auto, M50TU 2.5L, EAT chip, 1/95 build, USA, 205/65/15 tires, ASC+T, HID, lumbar, EC Mirror, BMW Alpine 5 radio with BMW-Pioneer CD Changer, abt 236k miles, Oxford Green/Parchment

  10. #10
    Join Date
    Feb 2004
    Posts
    4,894

    Default

    Wow! Darn... never seen anything like that...

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