Tranny help?
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Tranny help?
4l60e tranny with TCI 3500 stall on an LT1. I took my car for the first long drive yesterday after my new motor. Everything was ok until I was almost home. My tranny started slipping going up hills then it got to the point where the only way it would work was if I had the shifter in either 1 or 2. What would make me lose only 3rd and 4th gear? I'm really hoping for an easy fix since I just spent most of my money on the motor. Thanks for any help.
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I have no codes, I did have it tuned for the stall, and it will pull out and drive perfectly fine as long as the shifter is in either 1st or 2nd gear. If I shift into drive or overdrive my tranny will just slip. As soon as I shift back into either 1st or 2nd my tranny will work fine again. Reverse also works perfect. It's just 3rd and 4th gear that are slipping. I even gave it full throttle in 2nd gear and it held with no slipping.
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I just took the car back out and it will pull out and drive fine in d or od. As soon as it's time to shift into 3rd gear it just slips. I got it to go into 3rd once after letting off the throttle all the way but that was it.