Riddle me this..
- Thread starter hondarider552
- Start date
Brian says its made no difference. Acts the same with my os in it. Has to be the tcm
Sean, i dont know. Without me, brian, or steve to be there and see exactly how its acting, i cant say anything we have done will fix your issue. Ive never seen this before.
I will say that brians trans seems to need alot more pressure to hold the clutches though compared to mine. His adaptive learns were increasing pressure to the clutches each time we drove it to get the trans to learn (it would flair bad). Once i put the tcm back in my truck it would damn near lock up the trans as it shifted untill it learned back. I might be way off in my assumption of what i was feeling as i had no wway to monitor the pressures so at this point im just guessing till mike sets me straight
Congrats guys. I realize you already got another truck Brian but at the very least you know you won't be passing this problem on:thumb:
...and it seems others will follow suit while troubleshooting their shift issues.
...and it seems others will follow suit while troubleshooting their shift issues.
After driving it 100 miles with a new stock tune TCM, it shifts beautiful. 1-2 still flairs a bit, but getting less and less. Converter locks top of 2nd gear, and shifts at 3250-3300rpm in every gear. 4-5 will flair some but also getting less and less as it's learning.
Honestly, I did not even think this would work. I swapped out the TCM it had for a known good one before(junkyard tcm) and still hung the shifts, but at the same time, we were messing with the TCM limiting tables to figure out where in the TCM the problem was. I never knew it could be somthing this little, but I tried to fight it for over a year. I never once limped the trans on 4-5, but locked it into 3rd many times when we were F'in with it. I remember calling Mike a week after I got the truck with a trans code that Mike said we hardly ever see, and my problems only got worse as I turned up the power.
With that being said, I am going to hold onto the GMC for the time being, drive it for a few weeks to work and see how it does, but I dont think illl have any issues as it it shifting better tonight than it ever has, even before I owned it.
Without this forum, knowing people in this sport and the help of everyone who has helped me out, I really do appreciate it, the people who have helped me throughout this problem are on a list thats too long to type, you know who you are :thumb::thumb: I owe you guys.
I already started to remove the gauges in the GMC last night and said "hell lets give it one last shot, not like it will change".... boy was I wrong. Total 180* turn. I was done with this truck, wanted to give up, tuck my tail between my legs and wash my hands of it.
I have never once seen this issue come up in a truck. Ever, only heard about the people jumpstarting another truck, arcing the power and frying the TCM in the 6 speeds, but, even in that case, you would have codes and a trans that feels like complete crap; I had none of those, only hanging shifts with erratic converter lockup.
Gunna let the GMC stay in the garage for a few more years
I still would like to head to mikes in a few weeks to have him open the trans up and see if I/we caused any damage trying to "tune" this problem out.
People on here have dibbs on the single cab. I have put ~50 miles on it since bringing it home. Went form the dealer, to my house, and hasnt moved. PM me if your interested :thumb:
Honestly, I did not even think this would work. I swapped out the TCM it had for a known good one before(junkyard tcm) and still hung the shifts, but at the same time, we were messing with the TCM limiting tables to figure out where in the TCM the problem was. I never knew it could be somthing this little, but I tried to fight it for over a year. I never once limped the trans on 4-5, but locked it into 3rd many times when we were F'in with it. I remember calling Mike a week after I got the truck with a trans code that Mike said we hardly ever see, and my problems only got worse as I turned up the power.
With that being said, I am going to hold onto the GMC for the time being, drive it for a few weeks to work and see how it does, but I dont think illl have any issues as it it shifting better tonight than it ever has, even before I owned it.
Without this forum, knowing people in this sport and the help of everyone who has helped me out, I really do appreciate it, the people who have helped me throughout this problem are on a list thats too long to type, you know who you are
:thumb::thumb: I owe you guys.I already started to remove the gauges in the GMC last night and said "hell lets give it one last shot, not like it will change".... boy was I wrong. Total 180* turn. I was done with this truck, wanted to give up, tuck my tail between my legs and wash my hands of it.
I have never once seen this issue come up in a truck. Ever, only heard about the people jumpstarting another truck, arcing the power and frying the TCM in the 6 speeds, but, even in that case, you would have codes and a trans that feels like complete crap; I had none of those, only hanging shifts with erratic converter lockup.
Gunna let the GMC stay in the garage for a few more years
I still would like to head to mikes in a few weeks to have him open the trans up and see if I/we caused any damage trying to "tune" this problem out.
People on here have dibbs on the single cab. I have put ~50 miles on it since bringing it home. Went form the dealer, to my house, and hasnt moved. PM me if your interested :thumb:
Im just glad to figure it out. Im not one of those give up. I knew it had to be simple, i just couldnt get a finger on it. Between everyones help on here and you wantin to give it another chance, i dont think we could have ever got it. Im sure glad to be apart of this forum and all the great help. You guys are just awesome!!!
I have no clue :spit:
On my shit shifting TCM, the OS was 15184109
James' TCM is a different OS for his 02, and the TCM I have in the GMC now I do not know the OS for, but I really dont wanna start messing with it yet
On my shit shifting TCM, the OS was 15184109
James' TCM is a different OS for his 02, and the TCM I have in the GMC now I do not know the OS for, but I really dont wanna start messing with it yet
Maybe I spoke too soon..
Part throttle all the way up to 90% throttle has improved 100% from my other TCM, but, did a 4wd launch, left at 14psi, and hangs 2-3 @ 3800rpm. Round two..
edit; did 4 launches total from last night to today and has not learned. Running a 1900Us tune... nothing big.
Part throttle all the way up to 90% throttle has improved 100% from my other TCM, but, did a 4wd launch, left at 14psi, and hangs 2-3 @ 3800rpm. Round two..
edit; did 4 launches total from last night to today and has not learned. Running a 1900Us tune... nothing big.
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Headed out to log in few mins
Fluid wise, at 140* trans temp fluid is just above bottom of hot.
Fluid wise, at 140* trans temp fluid is just above bottom of hot.
Log of hanging 1-2 and 2-3.
Anyone else seeing anything im not? I only see after the 2-3, the Us drops rapidly, yet still 100% throttle and full rail...
Anyone else seeing anything im not? I only see after the 2-3, the Us drops rapidly, yet still 100% throttle and full rail...
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