4L80e swap, something is wrong, need help.

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Originally Posted by 03LQ9

Well that did the trick, the trans shifts really well, spins the tires on the 1st to 2nd shift right at 60mph. The only problem is to make it shift from 1st to 2nd at wot I need to manually shift it. If I leave the lever in 3rd or OD it just holds 1st and wont shift out? I have the shift mph set a few less then desired and the shift point at 6,000 , it worked well with the 4l60e tuned like this.

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monitor the shift solenoids with a scanner and ensure the pcm is commmanding the shift, if it is, then you know what it isn't.