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  1. S

    Transmission problem - won't shift out of first

    Good points. I'll check to see if they match up. As for a flush I'm concerned that with a problem existing it could cause more of a problem than is already there.
  2. S

    Transmission problem - won't shift out of first

    I suppose changing the fluid and filter is a good step. If it turns out to be a governor solenoid it won't hurt to do it again.
  3. S

    Transmission problem - won't shift out of first

    I have read that on the 2002 GC the TCM is in the PCM, it isn't separate. Does that make a difference in diagnostics?
  4. S

    Transmission problem - won't shift out of first

    I got it from my son. He said it was flushed but some time ago and he does not know if they put ATF 4 in or not.
  5. S

    Transmission problem - won't shift out of first

    Hi folks. I hope someone can help. I have a 2002 GC Laredo, 4.0 engine, 42RE transmission. Here is the problem: error code shows only P0135 for the O2 sensor. It shifts into reverse fine, shifts into drive fine, but while driving it won't shift out of first. I have had it up to over 3000 rpm...
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