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4l80e upshifts when floored?

Discussion in 'The Garage' started by y5mgisi, Aug 21, 2006.

  1. y5mgisi

    y5mgisi 1 ton status

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    My dad has a 96 chevy 1 ton van (100% stock) When he floors it and it should down shift, it actually upshifts. any idea why this could be?:confused:
     
  2. neverendingproject

    neverendingproject 1/2 ton status

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    Short in the wires.
     
  3. y5mgisi

    y5mgisi 1 ton status

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    I guess that would be a possibility huh?
     
  4. neverendingproject

    neverendingproject 1/2 ton status

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    Thats the only thing I can see. Since its electronically controlled. Try trans flush or talk to a tranny shop. Maybe some more people will chime in.
     

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