Tccm datalink malfunction class2

Discussion in 'Engine & Drivetrain' started by elt, May 26, 2019.

  1. elt

    elt TYF Newbie

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    I got this code today.
    But i dont see how it could be causing the engine problems i am having. At low speed. <30 mph the motor almost stalls. Rpm will drop from 2k to 1k and back. Once i hit 30 it goes away. Any thoughts?

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  2. bigfootchiro

    bigfootchiro Full Access Member

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    What year and what vehicle?
     
  3. elt

    elt TYF Newbie

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    1999 gmc yukon slt

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  4. elt

    elt TYF Newbie

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    So looking at the part there are 2 models. Is it based on what transfer case i have?

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  5. elt

    elt TYF Newbie

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    Has anyone changed out there tccm? Having issues removing the old one

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