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Re: 4L80E Harsh 1-2 shift
Posted to Transmission Forum on 1/21/2008 10 Replies

Hi Ken,

I got my hands on the truck again for a few minutes and took some more data. The 1-2 shift time maxed out @ .13 sec every time. Even when I would lift off the throttle the shift time stayed the same (.09-.13). The 2-3 shift would vary from .20-1.75 d... Login to read more.

10 Replies Received (View Replies)