02 suburban tranny problem?

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by dfunkt, Sep 19, 2011.

  1. dfunkt

    dfunkt New Member

    Have an 02 Suburban 4x4 1500 at about 85,000 orig miles. Truck was fine until sometime last week when all of a sudden, I could feel the truck didn't want to shift from first to 2nd until i released my foot off the gas pedal and then it would shift or I just wait until my rpm is high enough and then it will shift(after 3000rpm). I am not sure if this is a 4 speed but lets just say it is. I can't seem to get to 4th gear and when I downshift, I don't feel the 2nd gear either. Running fine but my rpm at 1st is high and won't upshift to 2nd on the freeway(running 70mph at 3000rpm). I thought maybe I had the tow/haul stuck but no light indicator that says otherwise.

    Is there some kind of way to determine if it is electrical or hydraulic? Could it be a stuck solenoid or electrical switch? I checked the tranny oil and it was fine with levels. I was actually planning to get the tranny oil/filter change but this happened before I could get it serviced but now I am rethinking if I should even or just have my tranny rebuilt? Any suggestions or clues before I take to the tranny shop?
     
    Last edited: Sep 27, 2011

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