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Wide RPM swings with 06 Commander

Discussion in 'General Jeep Discussion' started by Goodfellas, Sep 3, 2017.

  1. Sep 3, 2017 at 7:40 PM
    #1
    Goodfellas

    #1
    Goodfellas [OP] Member

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    Im looking for help, lately my commander after starting it during idle will rev up and down the rpm jump and drop and today after a drive after i put into park was doing it again and almost dropped down to close to zero and almost sounded like it was going to cut off. Any help?
     
    Goodfellas, Sep 3, 2017
    #1
  2. Sep 3, 2017 at 7:50 PM
    #2
    JKBob 25

    #2
    JKBob 25 Well-Known Member

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    With a handle of Goodfellas. Don't know if your going to get much help and input. Fear of giving bad or wrong info. And retribution for doing so. Just saying dude. Lol....

    Im sure some one will chime in. Hang tight dude.
     
    JKBob 25, Sep 3, 2017
    #2
    Bob likes this.
  3. Sep 3, 2017 at 7:51 PM
    #3
    Goodfellas

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    Goodfellas [OP] Member

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    Haha no man im just looking to find out what the hell is going on
     
    Goodfellas, Sep 3, 2017
    #3
    Bob and JKBob 25 like this.
  4. Sep 3, 2017 at 7:56 PM
    #4
    Goodfellas

    #4
    Goodfellas [OP] Member

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    I know im due for an oil change that im getting in a couple of days but other than that i dont know
     
    Goodfellas, Sep 3, 2017
    #4
    JKBob 25 likes this.
  5. Sep 3, 2017 at 8:09 PM
    #5
    JKBob 25

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    JKBob 25 Well-Known Member

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    Just messing with ya. That's me. Try to find the humerus side. Sorry I can't help your post ya dude. Honestly. I know nothing about your Jeep. Thought I might be able lighten your stress and have fun with it, and you. Hope it's all good with you.. lol.

    Keep us posted on your fix. Still like to learn about other Jeeps. Hope you let us know what you find. Thanks..
     
    JKBob 25, Sep 3, 2017
    #5
  6. Sep 3, 2017 at 9:50 PM
    #6
    chris4x4

    #6
    chris4x4 With sufficient thrust, pigs fly just fine Moderator

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    Are any engine codes being thrown?
     
    chris4x4, Sep 3, 2017
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  7. Sep 4, 2017 at 12:55 PM
    #7
    Goodfellas

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    Goodfellas [OP] Member

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    No there arent and it seems to only happen when it is cold outside
     
    Goodfellas, Sep 4, 2017
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  8. Sep 4, 2017 at 12:56 PM
    #8
    chris4x4

    #8
    chris4x4 With sufficient thrust, pigs fly just fine Moderator

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    Does it happen when the engine has been running for a while, or just on short trips?
     
    chris4x4, Sep 4, 2017
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  9. Sep 4, 2017 at 12:57 PM
    #9
    Goodfellas

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    Goodfellas [OP] Member

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    No it usually is onky after short trips and when i firat start it in the morning dont remember it doibg it when i first bought it used with 60k on it 3 months ago
     
    Goodfellas, Sep 4, 2017
    #9
  10. Sep 4, 2017 at 1:11 PM
    #10
    chris4x4

    #10
    chris4x4 With sufficient thrust, pigs fly just fine Moderator

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    Kinda sounds like the IAC is blocked, or not functioning. I would clean or replace it and see if that solves the issue. Another thing, when it does this, and you turn on the AC, does the RPM stabilize?
     
    chris4x4, Sep 4, 2017
    #10
  11. Sep 4, 2017 at 5:47 PM
    #11
    Goodfellas

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    Goodfellas [OP] Member

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    My ac doesnt work there is a keak in the line and it only makes a slight screatching noise when turned on does the IAC effect anything negatively other than just not regulating rpms while idleing?
     
    Goodfellas, Sep 4, 2017
    #11
  12. Sep 4, 2017 at 5:51 PM
    #12
    chris4x4

    #12
    chris4x4 With sufficient thrust, pigs fly just fine Moderator

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    The IAC being bad can cause the engine to struggle at idle, or die, such as you have experienced. Its not a good idea to not fix it, as it can cause other issues.
     
    chris4x4, Sep 4, 2017
    #12
  13. Sep 5, 2017 at 4:02 AM
    #13
    Goodfellas

    #13
    Goodfellas [OP] Member

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    I havent checked yet but thanks alot for the help ill get back to this post later and i will see if that happens, thanks
     
    Goodfellas, Sep 5, 2017
    #13
    chris4x4 likes this.
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