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1-2 shift harsh

Posted: Thu Apr 23, 2015 4:30 pm
by 12silvy
1-2 shift feels like it slips then bangs into gear at 3/4 or WOT otherwise shifts fine. I have tried hard and firm tunes no change, also messed with pressures increased and decreased no change. I have heard it might have something to do with speedo calibration? it's off 2-3mph according to gps. I want a hard shift but with out the slip- bang into gear. Im also hearing some knock at WOT between 4k-5.5k, on 91 tune running 93 in the tank. I know I can just retard timing a few deg's or add fuel there. Main issue is the shifting...any help would be great!! thanks

Re: 1-2 shift harsh

Posted: Thu Apr 23, 2015 6:00 pm
by mikel
please post the files from the tunes folder on the intune drive, and the info.xml file.

12 silverado?

Re: 1-2 shift harsh

Posted: Mon Apr 27, 2015 11:29 am
by 12silvy
I will post them up when I get home later...thank you