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View Full Version : 4L80E Downshits too often

Frankie Figs
04-30-2008, 04:56 AM
I drive an 04 Chevy box truck with a 6.0 and a 4 speed auto. It downshifts to 3rd when I try to cruise over 70 on the highway. How do I keep it from kicking down to 3rd?

Thanks,
Frankie
GRez
04-30-2008, 02:13 PM
Tune it.
Frankie Figs
04-30-2008, 02:47 PM
Its my work truck and its a piece of shit, Im not gonna buy a tuner for it. Cant I disconnect the kickdown cable or something like that?