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Thread: 4.0 sporatic idle.

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  1. #1
    Join Date
    Feb 2017
    Location
    danbury ct
    Posts
    7

    Default Re: 4.0 sporatic idle.

    any results?

  2. #2
    Join Date
    Oct 2016
    Location
    Southern california
    Posts
    22

    Default Re: 4.0 sporatic idle.

    It wouldn't start? I left it at work parking all weekend. I'm leaving town for a week so I'll have to get to it when I can. Thanks for checking in I appreciate it

  3. #3
    Join Date
    Oct 2016
    Location
    Southern california
    Posts
    22

    Default Re: 4.0 sporatic idle.

    Update. Still having problems with the rebuilt 4.0. We got it to idol and run by modifying the distributor mounting bracket. We ground out one side of the bracket so the distributor could rotate a little more which solves the problem. No idea why that worked? What is wrong inside the motor? Yes the timing chain and gear have been replaced again.
    Now smog CERT Is due and it's running with extremely high Nox. All sensors and cat have been replaced. What the heck is wrong with this motor?
    I just want to get on the trail.
    Even though it's not running right I still went head and finished the install of the front Clayton 3 link.
    Thanks
    Kevin

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