Got my trans built but shifts extremely hard
- Thread starter justindavis38
- Start date
I'm about to blow this thing up lol last night it drove fine all night shifted smooth on the way to school this morning its an hour drive it shifted kinda rough the whole way so it's kinda pissing me off my boss had an lb7 at work and it's got a fresh transmission in it it's stock but I think ima pull the VB out of it and put it in mine if that fixes all my rough shifting then it's in my VB because we've checked my clearances they are all good everything is in place I made sure all of the Torrington bearings were all in the correct place. And since it's not a consistent problem it will shift fine sometimes then sometimes not I don't see it being in the transmission but idk lol
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Drive it more. It's been three days. Trans has to learn. There's been times mine has taken a week and half to start shifting smooth after tcm tuning.
Doesn't matter. Trans needs to learn. Just do it. Don't be so impatient with it. Just drive it some more.
My luck just keeps getting better so remember last time I had the trans in and I said that the TC vane solenoid stopped working that vane position was stuck at 0% well the next morning I went out and started it and it was fine cycled the vanes with my tunes and went on well today came out of class and when to go home had no boost pulled up vane position it was working like normal just pulled it in the shop and pulled the intake my turbo has siezed up.. I don't understand how that happens while i was siting in class it was fine all morning then after class nothing.
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Just so you don't go chasing your tail if your truck isn't running 100% the transmission will never shift right. Boost leaks,Low rail pressure,low voltage ect all will cause erratic shifting.
Yea it shifted like shit after class when I had no turbo but now the shifts aren't exactly my main concern haha I can drive with rough shifts and hopefully it gets better but I can't drive it without a turbo
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So what do you guys think keyshawn about a wicked wheel i wanted to do a 475 over stock set up in the future but right now since I just built the trans funds are a little low but I had to just stock rebuild the turbo if I already have it out so I found a kit for $200 that is a rebuild kit with a billet wheel but it's the factory 11 blade wheel just billet or I can just get a kit and a wicked wheel separate what do yall think would be better?
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I'd just find a used stock turbo and run it. I sold mine for 150 and bought one off the member custom on here for like 200 i think.
Yea but if I do a s475 over stock will I not have to rebuild the stock turbo anyway with better bearings and a better wheel?
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I will when I pull it off hopefully this evening and it's got 184k on it i also have a blow off valve on it not sure why that would cause it to sieze up but I haven't checked the plan in it in 30k miles but the compressor wheel and housing look fine now sure how the turbine shaft looks yet
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If you had a blow off valve set to open at a lower psi than the wastegate, it would seem that the turbo could overspeed, which could most definitely cause it to "lock up"