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2000 gmc 5.7 auto in the drive gear goes to 30 mph then after revs and feels like in neutral and the tow/haul switch stopped coming on

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I had a recent proplem like that. I couldnt go over 30 and revs like u said but the tow light on my truck never worked.. but i messed with some connections underneath with the transfer case and the tranny.. someone really rigged some wirring under there so i got new cat tails and re did it myself havent had a problem since

Posted on Jan 17, 2011

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