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shifiting

  1. Transmission won't shift - Shifter not locked in park

    OEM Issues
    My 2004 Envoy SE will not shift from park. The shift lock releases with the brake pedal and the shifter moves easily through all gears, but the transmission doesn't shift at all. There may be a clicking sound every now & then while moving the shifter, but otherwise nothing. No problems with...
  2. Shifting Issues...

    OEM Issues
    HI All, '02 TB LTZ, 4whlDrv - 131K. Trans regularly serviced. Use Amsoil synthetic every 25K, new filter. 5K ago followed 'forum' advice on 'total drain' and 'replace' - went fine, got nearly all old fluid out. Issue: When cold only car will hesitate and make a (best description I can come up...
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