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transmission issues
Hey guys, So I have a 1999 tahoe 5.7 with the 4l60e. It's been having a rather concerning issue lately where after it enters 3rd gear, it likes to upshift quickly into a 4th gear and sometimes OD for no reason. The main problem is once it does so, it'll make a terrible vibration and noise...- SavageL92
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- Forum: Engine & Drivetrain
