Shift Points
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Shift Points
Trans has new solenoids in the trans but is shifting too firm sometimes from 1-2 or 2-3.. It is tolerable going up, but when slowing down it jerks really bad from 2-1. Sounds and feels horrible for the trans and miserable during stop and go traffic. Ive had to switch it to Manual and start off in 2nd gear. Im deleted, with intake, and a custom sct x4 tune. My main question is there any way a new tune could have better shift points? Also can someone recommend someone who could send a tune to be uploaded and used to try out different or better shift points?
Thanks,
Brent
Thanks,
Brent
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Joined: May 2015
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From: coldwater Michigan
shifting
Hi! ..I just bought my '11' last month and I noticed that on normal take off the trans shifts hard from 1st to 2nd and 2nd-3rd .if I take off fast it shifts OK. Have you heard of a fix for this and what is TBS?
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i have some experience with tuners.. just new to the diesel world. I could understand the firm shifts for WOT, but not for a casual shift while not getting on it while driving around the city...
Thanks
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Crystal
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More Turbo
Joined: Aug 2010
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From: Green Acres, Ca.
I've noticed when I'm in tow/haul mode usually towing the 30 foot toy hauler the transmission shifts super smooth. I do get some hard shifts when driving without any type of load.
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From: Cartersville, Ga
I'm in the same boat. The 1-2 and 2-3 are more firm compared to the others. Tow/Haul mode makes everything smooth out great. When I come home from work on Thursdays, I have to sit in Atl traffic. To avoid all the firm shifts, I just put the truck in Manual mode and leave it in 3rd gear till I'm out of traffic. I wish a tuner could tune out first gear on a tune until tow/haul was selected. First is very deep and it shifts to second in no time anyway. Second gear has plenty of "umph" to get an empty truck going.
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Yea when towing it drives amazingly.. but nothing behind it its really jerky.. i had them tweak the tunes some but its still doing it.. the 1-2 up and now its the 3-2 down.. but as stated when you brake hard its a smother shift.. truck has 144k on it.. had it for about 2 weeks b4 i deleted it and tuned it.. from what i remember it shifted smooth before..
any suggestions on sct x4 tuners? Someone who maybe has a better tune to try or work with on building a custom tune with different shift points or line pressure??
any suggestions on sct x4 tuners? Someone who maybe has a better tune to try or work with on building a custom tune with different shift points or line pressure??
Lead Driver
Joined: Sep 2006
Posts: 5,665
Likes: 164
From: Cartersville, Ga
Yea when towing it drives amazingly.. but nothing behind it its really jerky.. i had them tweak the tunes some but its still doing it.. the 1-2 up and now its the 3-2 down.. but as stated when you brake hard its a smother shift.. truck has 144k on it.. had it for about 2 weeks b4 i deleted it and tuned it.. from what i remember it shifted smooth before..
any suggestions on sct x4 tuners? Someone who maybe has a better tune to try or work with on building a custom tune with different shift points or line pressure??
any suggestions on sct x4 tuners? Someone who maybe has a better tune to try or work with on building a custom tune with different shift points or line pressure??
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Thanks everyone
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Have you resolved the issue? Or still having it? The place that installed it when i called them to talk about the tunes they just wanted to blame it on the solenoids or the converter.. no one on h&s's are having the issue? so basically it is a tuning issue on the scts?
Thanks everyone
Thanks everyone
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It was loaded on it when I had all the work done. I had exhaust, dpf delete, s&b intake and the tuner all put on at make it fit motorsports. When I called them about the issue after driving it and getting tired of it as it got worse, I asked who did their tunes and they said Chris, Tunes by Chris. Doesn't sound very promising lol but had him edit the tunes and it got better on some and worse on others.. It usually doesn't seem to do it as often right after I retune it but as I drive on it longer it becomes more frequent.
