Not moving when pulling off the line

Discussion in 'GM Powertrain' started by Bfeehan, Dec 18, 2010.

  1. Bfeehan

    Bfeehan New Member

    2006 Suburban with 59000 miles. Last week started a problem when I start from a stop. When I hit the accelerator it doesn't always move. The rpms go up and then eventually it fetches up a starts to move. There is no clunking or banging when it finally moves. It doesn't always happen, but it is starting to get more frequent. Any ideas?

    DAREDEVIL Rockstar 4 Years 1000 Posts

    How does the tranny oil look and smell ??? to me it sounds like something with the converter .
  3. stephan

    stephan Rockstar 4 Years 5000 Posts

    Welcome to the GM truck club BF. Yep X2 on the torque converter or could be the first gear clutch pack in the trans. Could also be fluid pressure loss due to the pump sucking air. Have you had the trans filter & fluid replaced recently? If so it's possible they didn't get the filter installed correctly & it is sucking enough air to drop fluid pressure.
  4. Bfeehan

    Bfeehan New Member

    The oil looks and smells ok, and I am probably due for a transmission maintenance. I drove it for about 30 stop and go miles over the wekend and it seemed fine. Note: I took the information from my wife before checking it out myself. I was thinking hte torgque converter as well. I'll keep an eye on it and see what happens. Thanks for the input.
  5. grandparon

    grandparon Member

    sounds more like brakes hanging up to me. If it does it again jack a rear wheel up, block the truck from rolling, put it in neutral and try spining the wheel with your hands. It should spin freely, try this on all the tires. The park brake was released, wasn't it?

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