'California Stop' hard shift
#1
08-26-2015, 03:52 PM
#2
08-26-2015, 03:59 PM
Shoot I had completely forgotten to ask my tech about this. From what I have seen here on the forums it's fairly common. Best remedy I've used in the meantime is to just delay putting your foot down for a second so that your transmission has more time to work with. I just started it as a habit and forgot about the issue.
I second that question, is there a software fix?
I second that question, is there a software fix?
#3
08-26-2015, 07:35 PM
I was provided a special firmware from the fantastic people at GAP Diagnostic to upload using my IID tool.
Below is a snippet from an email I sent back to the techs describing the change. It still does it if the conditions are just right, but it's much less than before.
I’m not certain how much of the improvement is simply due to resetting the transmission adaptation, but after driving the first night and next morning I can say it’s smooth as butter! The shifting is very smooth, and especially accelerating after an almost-stop is much improved. No more lurching forward.
Even accelerating from a dead stop is much smoother. The throttle response off the line seems to be controlling the transmission much better.
The power is there if I push the pedal harder whereas before it was almost too much when simply making a slow start from a stop light, etc.
Below is a snippet from an email I sent back to the techs describing the change. It still does it if the conditions are just right, but it's much less than before.
I’m not certain how much of the improvement is simply due to resetting the transmission adaptation, but after driving the first night and next morning I can say it’s smooth as butter! The shifting is very smooth, and especially accelerating after an almost-stop is much improved. No more lurching forward.
Even accelerating from a dead stop is much smoother. The throttle response off the line seems to be controlling the transmission much better.
The power is there if I push the pedal harder whereas before it was almost too much when simply making a slow start from a stop light, etc.
#4
08-29-2015, 03:20 PM
I was provided a special firmware from the fantastic people at GAP Diagnostic to upload using my IID tool.
Below is a snippet from an email I sent back to the techs describing the change. It still does it if the conditions are just right, but it's much less than before.
I’m not certain how much of the improvement is simply due to resetting the transmission adaptation, but after driving the first night and next morning I can say it’s smooth as butter! The shifting is very smooth, and especially accelerating after an almost-stop is much improved. No more lurching forward.
Even accelerating from a dead stop is much smoother. The throttle response off the line seems to be controlling the transmission much better.
The power is there if I push the pedal harder whereas before it was almost too much when simply making a slow start from a stop light, etc.
Below is a snippet from an email I sent back to the techs describing the change. It still does it if the conditions are just right, but it's much less than before.
I’m not certain how much of the improvement is simply due to resetting the transmission adaptation, but after driving the first night and next morning I can say it’s smooth as butter! The shifting is very smooth, and especially accelerating after an almost-stop is much improved. No more lurching forward.
Even accelerating from a dead stop is much smoother. The throttle response off the line seems to be controlling the transmission much better.
The power is there if I push the pedal harder whereas before it was almost too much when simply making a slow start from a stop light, etc.
#5
08-31-2015, 11:34 AM
#6
08-31-2015, 12:30 PM
after driving the first night and next morning I can say it’s smooth as butter! The shifting is very smooth, and especially accelerating after an almost-stop is much improved. No more lurching forward.
Even accelerating from a dead stop is much smoother. The throttle response off the line seems to be controlling the transmission much better.
The power is there if I push the pedal harder whereas before it was almost too much when simply making a slow start from a stop light, etc.
Even accelerating from a dead stop is much smoother. The throttle response off the line seems to be controlling the transmission much better.
The power is there if I push the pedal harder whereas before it was almost too much when simply making a slow start from a stop light, etc.
Regardless, I think I'll stick with it and really do appreciate all the support that GAP gives their customers.
#7
08-31-2015, 03:36 PM
They provided me with (what I assume is) the same update and I agree that the "california stop bug" is much improved. My shifting is much smoother too, but I don't know how much of that is due to the software update and how much is due to my having recently changed the transmission fluid. My only issue with the update was that it made the truck feel somewhat sluggish now. It never seems to want to downshift unless I mash the gas to the floor. Before, I could find that sweet spot where in the gas pedal travel where it would downshift for me. Now, it seems that I literally have to floor it most times to get it to shift down... otherwise, it just wants to hang onto the gear it's in.
Regardless, I think I'll stick with it and really do appreciate all the support that GAP gives their customers.
Regardless, I think I'll stick with it and really do appreciate all the support that GAP gives their customers.
I agree with everything you said. It's a trade off between the snappy old way, and the new kinda sluggish way. I find I'm in Sport Mode a lot more than I was. I had recently changed my transmission fluid as well, and then there's the fact that the adaptations are reset. This alone is probably why it seems so awesome at first, then changes.
GAP is awesome for helping out, that's for certain.
#9
09-16-2015, 12:21 PM
#10
09-16-2015, 09:20 PM
It's funny that you mention this. I changed the fluid in my transfer case when I first got my truck and I don't remember having the "California Stop bug". However, it seems to have gotten progressively worse, though the update from Gap certainly helped the issue.
Fast forward 22,000 miles and I just changed my transfer case fluid again the other day. The old stuff was very very dark... burnt looking. I find that odd for such a short period of time in the transfer case. If anybody has any suggestions as to why that may be, please let me know. However, the point is that I went out for a couple of test drives afterwards and I'll be damned if the truck didn't feel like the stop bug was gone or at least vastly improved. I was going to give it some time and see if I might have been making myself believe it, but your post has me thinking it really did affect the issue.
Fast forward 22,000 miles and I just changed my transfer case fluid again the other day. The old stuff was very very dark... burnt looking. I find that odd for such a short period of time in the transfer case. If anybody has any suggestions as to why that may be, please let me know. However, the point is that I went out for a couple of test drives afterwards and I'll be damned if the truck didn't feel like the stop bug was gone or at least vastly improved. I was going to give it some time and see if I might have been making myself believe it, but your post has me thinking it really did affect the issue.