jak2908

iTrader: (1)

i have a 4l60E, and i know the shifter cable is a little off but i can pull it down in first and take off in first just fine, but as soon as the tires slip it shifts into second, thats with the traction control off, pulled the ABS and TCS fuses and still does the same thing. Is it my cable?

joecar

In your PCM's transmission calibration the Manual 1st 1->2 and Manual 1st 2->1 tables are populated to allow this shift.

joecar

Regardless, make sure to adjust the shifter cable.

jak2908

iTrader: (1)

please elaborate? how can i get it fixed? tranny is built to the hills and the car just had been dynoed

Gearstar Performance

All 4L60E's will shift in 1st to 2nd at a certain rpm, this is in the programming so as not to over rev the motor.

jak2908

iTrader: (1)

it literally could be at around 2000 RPM...it never did this before I had it out and got it rebuilt, and 700 hp going through it...