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View Full Version : 4l80 shifting sluggish and not shiting at wot



Cool28
March 12th, 2012, 03:49 PM
well it didnt shift at wot once in 1st(only time i at it at wot) and i think it might have to do with how soft its shifting. just under normal driving you barely even feel the shifts lol. i looked at a corrected truck tune and my line pressure numbers are way lower but that might be cause i have a car i dont know.

Could someone look at my tune and see if anything stands out wrong please?

12781

thanks

joecar
March 15th, 2012, 09:46 AM
Try this: set D0960,1,2 Throttle Kickdown tables to 100% all across.

Cool28
March 15th, 2012, 09:52 AM
Will do thanks. Also put the pressures to the truck one I seen and that helped alot also

tokymon
March 15th, 2012, 10:49 AM
also i set mine at .3 shift times at low throttle and .2 at higher throttle so its a little crisper under wot