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2004 Trailblazer Transmission or Computer problem?? Help please

kmgolden85kmgolden85 Posts: 2
edited August 2016 in Chevrolet
Have 04 trailblazer with 150k.. started to experience a hard shift/bucking when going from 1st to 2nd only happens when going highway speeds.. check engine light comes on with trans slippage and torque converter codes..brought to aamco ended up paying $2400 rebuilt trans.. kept having same problem long story short..kept happening again and again..4 rebuilds later 2 paid for 2 covered under warranty and numerous torque converters. . just picked it up from different trans shop with another rebuild put in and having same issue.. went on highway and when i got off and came to complete stop starts to buck from 1st to 2nd and check engine light on .. funny thing is, if i stop and shut the truck off and turn it back on hard shift goes away like nothing ever happened..check engine light still on but hard shift is gone until i go back on the highway..soo frustrating please help
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