Got my transgo shift kit installed, very disappointed...

Well just got my truck back from the shop i had a Transgo HD2 shift kit installed. Now the truck shifts worst than before.... hardly shifts firmer than it did before. Sometimes just randomly the tranmission will shift rev up 600rpms and then shift?? Never did this before. But it does shift quicker than it did before just not that firm very mooshy shifts.

I asked them to set the shift kit to the firmest settings and i got my old parts back so i know its in there.

Ive had two people tell me that i dont need to have it tuned since im mechanically chaning my transmission?? If hope this isnt right... if so then this shift kit was installed wrong or something.

Does anyone have any ideas?? I have HP tuners just tell me what tables to maybe play with to get it better.

Just a reminder my transmission was shifting great before the service and never had any of these problems.

Thanks Brandon

get a retune . . .

yup i think it may be tuning issues

Not saying this is the case, But I have heard of shops just upping the trans pressure, and not installing the shift kit.

should have tune looked over for trans tables, TQM might be limiting some things. also it also depends on what the shop all installed as for your kit

Mine shifted a bit funky at first - it took a good 200 miles of driving before it smoothed out, but I can really notice a difference.

Hey guys, thanks for all the input i have checked my tune just for that to see if there where any changes done to it but no. The shop its self is a very reputable shop many of the professional racers down at gainesville race way recommended them to me. There specialty is performance transmissions and have been in buisness for 27 years now. I even got all my old parts back.

I have a nelson tune but i just though i wouldnt have to change the tune. And i really doubt he will be able to get back to me with a tune before SAR.

Would any of you guys know specifically which table in Hp Tuners i can zero out or mess with to improve my problems? Maybe mess with my line pressure i really have no clue im just throwing out ideas.

there are different parts in the HD kit you can use for shift qualities. Just cause you got your old parts back doesnt mean they installed the Race parts. theres street- strip/street- race springs and specs inside the kit

There are??? when i looked at it when i was thinking about installing it my self it called for yellow, blue and white springs in the intructions and thats all that came with the kit? But i could be wrong i just dont remember seeing mutiple sets of springs only three packages of springs all different sizes/colors.

Man this is very depressing i should have just tried installing it myself... this was the first time i ever took my truck to a shop, i will never do that again.

I just got back from driving it and its still being pretty random... shifting really early and sometime really late. Ive also noticed it shifts really hard when i put it in reverse.

My buddy down the street from my dad's house is having troubles with the same type of Transco shift kit. Accept he lost the ability to shift in drive and manually. He pulled it apart yesterday and was waiting for his buddy who works at a transmission shop to bring ove some new parts and correct his work.

If its a reputable shop, bring it back and have them make it right. You paid to have the work done, any self respecting shop will make it right for you.

I've always noticed a big difference right away! Something is wrong!

could have a leaking seal in the servos. I'd pull the servos out, remove any washers that may be in between the cover and case, replace all the oring seals, inspect the others and put the servo back in to see if that fixes it.

Tap

Hey guys well i found out the problem, i went out and started messing with my Hp-tuners and saw that my desired shift time table was pretty high ranging from .350 - .550 i zeroed out that whole table(hope thats ok?) and now i have no traction after my 1-2 shift and it chirps on the 2-3 shift very happy :).

Does this seam reasonable and why my shift kit was acting up so much?

Thanks for everyones input on helping me fix this its very appreciated!

Brandon

I'm not sure why your tables were set to that, unless you used a stock trans table. I always set that table to .2 for a stock truck and zero it out for a shiftkit and servo.

Glad you got it fixed.

Yes i reloaded my stock truck tune to see if thatwould make it better which it did just not by that much, zeroing out my desired shift time table made it shift right!

Can i load your tune back on nelson and zero out the desired shift time table? I just didnt want to screw up your tune.

Thanks alot brandon

Quote:

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Originally Posted by LS6_Silverado

Yes i reloaded my stock truck tune to see if thatwould make it better which it did just not by that much, zeroing out my desired shift time table made it shift right!

Can i load your tune back on nelson and zero out the desired shift time table? I just didnt want to screw up your tune.

Thanks alot brandon

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You'll want to start with a stock line pressure table, then you can, simply copy them to my tune, remove all TM and you'll be good to go.

Ok sry but i have another question on tuning the shift kit. I was talking to some guys down at the dyno shop about getting it tuned and to see how much, past all that it was too exspensive and we started to talk a bit i told them i had Hp Tuners and they told me some of the same stuff i already did, but he also mentioned copying my Tow/Haul trans pressure table to my normal trans pressure table to get some firmer shifts and not to increase it at all anymore after that.

Does this work? Im just scared of trying it and screwing up my trans, this baby has got to last me a bit longer. Thanks for all your guys input!

Brandon

P.S. Allen i did what you said and my truck runs great. Couldnt be any happier with my shift kit.

I'm glad you figured it out.

My T/H settings are a lot more aggressive than the normal settings. I had it done this way because it's my wife's Denali and it sees 7K miles per year. Call it a fun button....

Everyone has the opinion on how to tune, so to say they are right or wrong, who knows, lol.

You can increase your line pressure tables to get the exact firmness you're looking for, it won't hurt anything.

With my 4L80E TransGo HD2 kit , once I installed LT and cam I had to go back to stock settings or else it was way to harsh .
Zeroing out Shift Times just takes out adaptive shift learning , so does setting anything below .3 .
Firm in TransGO is , neck jerking shifts .

you can tune shifts in the HD2 kit.. you can drill different size holes in the seperator plate.... I would sugest a stall.... I have allways kept mine as a Full race unit... didnt have any problems and shifts were nice even threw a 3600 stall ... KC