Re: Tuned 68RFE Shift Patterns
Quote:
Originally Posted by
Double R Diesel
My recommendations are the Revmax valve body and their ultra low stall torque converter. The billet flex plate is a good option but not required if you are not going to ever go beyond what the power a stock turbo is capable of making.
A retune is not required for the above mods, but you will not see an increase in line pressure that the new valve body allows if you don't get a retune.
Ray,
Double R Diesel
I got ya. Yeah I don’t plan on ever going into any high hp, I’m content with a 90 horse tune. Thanks for the input sir.
Re: Tuned 68RFE Shift Patterns
@Double R Diesel after flashing the ECM with a tune file, is it required to do a "Quick Learn" procedure with a Chrysler or Snap-On scan tool prior to the driving re-learn... or is doing a driving re-learn adequate?
Re: Tuned 68RFE Shift Patterns
Driving re-learn is fine- it will take a few hundred miles for it to fully learn. City/driving with more stops and starts will accelerate the learning process
Re: Tuned 68RFE Shift Patterns
Quote:
Originally Posted by
TexNeck
Driving re-learn is fine- it will take a few hundred miles for it to fully learn. City/driving with more stops and starts will accelerate the learning process
That is correct. Thanks for your post.
Ray,
Double R Diesel
Re: Tuned 68RFE Shift Patterns
If you have the scanner readily available by all means use it to do the quick learn first then go drive it easy for a 100 miles or so
Re: Tuned 68RFE Shift Patterns
Good to know. I just did the driving re-learn when I tuned back in July of 2018. Set the MM3 to the lowest hp switch setting and did stop-and-go around town for 100 miles or so before gradually increasing throttle percentage and acceleration rates. That being said, there's a lot of conflicting information out there.... including most of the RevMax documentation stating that a quick-learn was mandatory. Of course, that may be just a condition of their warranty, and I can respect that.
Re: Tuned 68RFE Shift Patterns
Quote:
Originally Posted by
ZeroSignal
Good to know. I just did the driving re-learn when I tuned back in July of 2018. Set the MM3 to the lowest hp switch setting and did stop-and-go around town for 100 miles or so before gradually increasing throttle percentage and acceleration rates. That being said, there's a lot of conflicting information out there.... including most of the RevMax documentation stating that a quick-learn was mandatory. Of course, that may be just a condition of their warranty, and I can respect that.
I believe there quick relearn is mandatory when you are replacing the trans not just a tune
Re: Tuned 68RFE Shift Patterns
I have been having the same issues with mine and that answers the questions. I have an additional issue that I am having looked at. I also have the hard shift from third to fourth, but it has started to make a slipping/ funny noise while under moderately hard acceleration going into fourth gear. I am having a hard time telling what is normal and what is not. I also am having really hard down shifts while in tow haul mode. Mostly 3rd and 2nd. I thought maybe towing my camper would help smooth some of those shifts, but it seemed to make them even worse. I really makes the truck lurch when it downshifts. I really feel like I'm about to be about $6000 lighter in the pocket. This truck has only been tuned for about 800 miles. I probably didn't do the best job with the relearn when initially tuned, however, I had a new trans tune flashed and was very careful to follow the revmax relearn procedure this time around. Hope it didn't suffer irreparable damage right out of the gate. Truck seems to shift ok in all the other gears.
Re: Tuned 68RFE Shift Patterns
Quote:
Originally Posted by
Sss33
I have been having the same issues with mine and that answers the questions. I have an additional issue that I am having looked at. I also have the hard shift from third to fourth, but it has started to make a slipping/ funny noise while under moderately hard acceleration going into fourth gear. I am having a hard time telling what is normal and what is not. I also am having really hard down shifts while in tow haul mode. Mostly 3rd and 2nd. I thought maybe towing my camper would help smooth some of those shifts, but it seemed to make them even worse. I really makes the truck lurch when it downshifts. I really feel like I'm about to be about $6000 lighter in the pocket. This truck has only been tuned for about 800 miles. I probably didn't do the best job with the relearn when initially tuned, however, I had a new trans tune flashed and was very careful to follow the revmax relearn procedure this time around. Hope it didn't suffer irreparable damage right out of the gate. Truck seems to shift ok in all the other gears.
Where are you located?
If your near PA I would take a ride and see how it feels or help you do a relearn.
Re: Tuned 68RFE Shift Patterns
Quote:
Originally Posted by
RamHunter18
Where are you located?
If your near PA I would take a ride and see how it feels or help you do a relearn.
I sent a pm with contact info. I am just outside of Allentown.