trans expers... why wont my trans learn?

[speedracer1000]

ok ive had this problem forever it seems like, every time I change a tune my trans goes ballistic to the point it scares me to change a tune. but once it learns its fine, u can drive it 50k miles like that and its perfect. I don't get it, tell me wut u think im doing wrong.... I got 190/75s and a pmax and Ive been havin some fuel pressure issues but tahts beside the point. ive been running erics tunes but I got some from matt the other day, seems like its really bad with his... when you first change the tune ill pull out and it gets to 3rd or something and itll flare up real bad and slam in then itll like go into neutral and sometimes hang there till u let off then it finally upshifts. so in the past I found that if u drive it a few miles then stop and just run it wide open itll go thru all the gears fine and u do that a couple times and then itll finally learn. then no more trouble after that it. well tonight I loaded up matts srl reduced fuel. and of course I go through the whole deal with it actin the way it does for a few miles. I tried runnin it wot and it was a no go. it just hit the rev limiter for a sec. then after I let off it finally went in. tried that a couple times it just wont learn at wot. all kinds of slammin and banging and everything else. at one point it locked the back tires up at like 10 mph when I was slowin down, wen I got to a stop the converter musta still been locked up cuz it almost stalled the engine then it disengaged. but if I drive it normally it shifts semi decent, with very little flare. as of right now if I just drive it normal it acts like nothings wrong. even tho I don't care one bit for matts trans tuning. never did but I thought I would give his a try.. so I guess what im asking is, is there something im doin wrong to help the truck learn or wut else could be wrong? I feel that its not a solenoid issue because once it learns u have no trouble.i could prob take it for a ride right now and run it flat out and it might shift perfect but its got me scared to try it.

 

[pipeliner]

proper relearn procedure is a big secret but this is what i do. two runs thru all gears into lockup at 25% throttle two runs at 50% throttle and two runs 75% and two at wot. do them in 4x4 and in 2x4 then in tow/haul mode. then sit in truck while running switching from park to neutral to drive with 3 sec inbetween eachother. do that several times too. if that doesnt help then contact your tuner about it. and if he cant help then assume the trans needs solenoids or internals.

 

[speedracer1000]

occasionally it will throw it into limp mode. i thought maybe i was being too hard on it runnin it hard pretty much right away. but if i baby it it seems to take way too long to try and learn

 

[strokin6L]

proper relearn procedure is a big secret but this is what i do. two runs thru all gears into lockup at 25% throttle two runs at 50% throttle and two runs 75% and two at wot. do them in 4x4 and in 2x4 then in tow/haul mode. then sit in truck while running switching from park to neutral to drive with 3 sec inbetween eachother. do that several times too. if that doesnt help then contact your tuner about it. and if he cant help then assume the trans needs solenoids or internals.

That'll be enough? I've heard about the gear changing thing from suncoast.

 

[Zmann]

proper relearn procedure is a big secret .

it will learn on it's own but this will expedite the procedure

Torqushift Shift Relearning Strategy
Torqushift Shift Relearning Strategy
TorqShift Harsh/Slipping Engagements, Upshifts, and/or Downshifts:
If these symptoms are experienced after the batteries have been disconnected, then it is due to the transmission adaptive strategy being cleared from the computer. This may occur when the vehicle is delivered new from the factory as well.
1. Warm the engine and transmission to operating temperature with all accessories off.
2. Idle engine for one minute with engine warm and all accessories off.
3. Idle engine for one minute with A/C on.
Then:
1. While driving, perform three series of upshifts at light, medium and heavy throttle.
2. While stopped, perform three sets of gear engagements (N-R, N-D, D-R, R-D) with the brake pedal firmly depressed and waiting three seconds between each engagement.
Perform these steps once in normal mode and once in tow/haul.

 

[drunk on diesel]

Slight OT: what are your complaints with Matt's trans tuning? I love his tunes on my 6.4's. I know 6.0's are a different animal

 

[Pizza pig]

Sounds like a solenoid is gummed up, you need to check for codes


Hellen Keller sent this?

 

[strokin6L]

it will learn on it's own but this will expedite the procedure

So if you started off doing the n-r then n-d...would you put it back in park before doing the next gear change(n-d)? And when would you wait for the three seconds before each gear change? If you're going from n-r...would you wait for three seconds after putting it in r or wait three seconds after you put it back in n to start the next gear change?

 

[speedracer1000]

Slight OT: what are your complaints with Matt's trans tuning? I love his tunes on my 6.4's. I know 6.0's are a different animal

all of the trukcks ive drove/ridden in with matts tuning it seems like the shifting is a lil too firm for my likings. and at part throttle it shifts too soon as if the rpms drop too much, and wot shifts too high i dont have this complaint with erics tuning. for me his is spot on, firm wen it needs to be and smooth and consistant. i realize firmer is better with more power but i think its a lil extreme with matts, my buddys truck is the same way. he has srl and wen it shifts 3-5 5-6 it lunges the truck.... however i like the power frol his, seems like my turbo really likes it because at part throttle torque seems to be double in the lower rpms. i dont have any of the hotter tunes from eric but if i could get matts power with erics trans tuning id be a happy man... as long as my pos trans holds up. i have a suncoast ironpac 3 kit here waiting to get put in

 

[Mark Kovalsky]

So if you started off doing the n-r then n-d...would you put it back in park before doing the next gear change(n-d)?

It doesn't matter. It is easier to not put it back in park, but you can if you like.

And when would you wait for the three seconds before each gear change?

Anytime you move the shift handle to a new spot wait three seconds.

If you're going from n-r...would you wait for three seconds after putting it in r or wait three seconds after you put it back in n to start the next gear change?

Both.

 

[speedracer1000]

mark wuts ur opinion on my issue?

 

[Zmann]

all of the trukcks ive drove/ridden in with matts tuning it seems like the shifting is a lil too firm for my likings.

I always fine tune the shifts on my custom tunes Matt's included
using the SCT

 

[Mark Kovalsky]

I don't know what the tunes do to the learning. I programmed the learning in the stock tune. Anyone that changes what I did is suspect. :flipa:

If it works with the tunes removed and doesn't work with the tunes then I think the answer is obvious.

 

[speedracer1000]

i checked my history codes today i got a p0273 which is an incorrect gear ratio and a p2703 which is friction material d time range/performance in the modis troubleshooter it mentions that if a 273 and 2700 series codes are present together to change the solenoid first if that dont fix it suspect the direct clutch... so i guess its one or the other

 

[Zmann]

I don't know what the tunes do to the learning. I programmed the learning in the stock tune. Anyone that changes what I did is suspect. :flipa:

.

Oh heck no I would never change the Stock tuning
it was perfect !

tunes have nothing to do with learning as far as I know
I meant to state that I always seem to need to tweak my inputs that affect shifting feel via the SCT tuner options after I have a custom tune loaded and learned I will
fine tune over a week and just keep notes of what I change and how it feels

 

[Mark Kovalsky]

If the tunes change ANYTHING having to do with the shift it affects the learning. The adaptive software is so intertwined with the shifting software that one can't be changed without affecting the other.

 

[pipeliner]

That'll be enough? I've heard about the gear changing thing from suncoast.

Thats what i do im just trying to pass on what works for me. i dont drive my truck like an idiot after the procedure neather i put a good 200 or more miles of city and highway driving too before i feel everything has settled in.

 

[Zmann]

If the tunes change ANYTHING having to do with the shift it affects the learning. The adaptive software is so intertwined with the shifting software that one can't be changed without affecting the other.

that makes sense