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Search results

  1. F

    4L80E Tranny - no over drive, no slipping, no codes everything else drives fine

    I greatly appreciate all the information yall have provided and as soon as I'm able to I'm check into all of these things. Keep the ideas and tribal knowledge coming!!!
  2. F

    4L80E Tranny - no over drive, no slipping, no codes everything else drives fine

    I haven't thought about that but I am planning on installing a trans temp gauge, but I may look into that as well. Any idea of what kind of optimal pressure I should be looking for?
  3. F

    4L80E Tranny - no over drive, no slipping, no codes everything else drives fine

    Ok, I'm new to the forum. I came across this thread looking for insight to the 4L80E in my 1999 K3500 454 4x4 with 103,000 miles losing overdrive only after it gets to operating temperature. I've changed the ETC, all the solenoids, TPS, fresh fluid and filter. When you first start it up in the...
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