Transmission shifts too soon

ddog4ddog4 Member Posts: 1
edited May 2015 in GMC
hey I have a 2002 sierra and the transmission seems to be shifting way too soon and when driving on highway and wanna pass it doesn t down shift but will start over in first when you come to a complete stop
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Answers

  • larryb1963larryb1963 Member Posts: 26
    sound like a bad transmission input sensor . or wiring harness .
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