hello everyone, I've had the problem for a long time that the gearbox shifts extremely hard from 2nd to 3rd gear.
1st to 2nd and 3rd to 4th gear very soft. does it have something to do with the pressure? can it be manipulated with HP tuners?
gearbox is a 4l60e. from Corvette c5
Can nobody help me?
Is best if you upload your current file and stock file if possible, any fault codes ?
Nobody can help unless you include your tune and a log.Originally Posted by Barbos1986
Robert Moreau
Technical Sales and Marketing Support Specialist
TransGo
2621 Merced Avenue El Monte, CA 91733 USA
Calibration | Innovation |Performance
https://transgo.com/our-products/
here is the file:
https://filetransfer.io/data-package/fmOdsdMX#link
Last edited by Barbos1986; 07-31-2024 at 10:32 AM.
That's just the tune, need a log as well.
Robert Moreau
Technical Sales and Marketing Support Specialist
TransGo
2621 Merced Avenue El Monte, CA 91733 USA
Calibration | Innovation |Performance
https://transgo.com/our-products/
Ok that was a log but missing most of the transmission parameters and not moving so obviously it will not help Need a log taken driving it showing all the upshifts so that we can see what is different during the 2-3 vs the other shifts. Here's a channel config file you can use so that your log includes all the transmsision parameters needed. 4L60E.Channels.xml
Robert Moreau
Technical Sales and Marketing Support Specialist
TransGo
2621 Merced Avenue El Monte, CA 91733 USA
Calibration | Innovation |Performance
https://transgo.com/our-products/
What must i do with the file 4l60e.channels.xml ?
The log you sent did not include the parameters we need so you'll have to take another one.
First thing you need to do is to copy the file to your laptops in: Documents\HP Tuners\VCM Scanner\Channel Configs
Then here's a link to the explanation on how to go about saving and loading channel configuration files:
https://support.hptuners.com/support...-configuration
Follow the instructions on there to load the file I sent that you saved in the folder and then all the parameters needed will show up and you can then go for a drive and log what we need.
Robert Moreau
Technical Sales and Marketing Support Specialist
TransGo
2621 Merced Avenue El Monte, CA 91733 USA
Calibration | Innovation |Performance
https://transgo.com/our-products/
ok. I hope I did everything right now.
https://filetransfer.io/data-package/8cIShv6c#link
Yes you did, that's what I needed. So command wise all is good, the issue is in the transmission itself. It is somewhat of an odd problem because it is hard to get a real hard 2-3 shift on those even when you try to do it on purpose. You can bring it to a transmsision shop to have them figure out what's wrong in there, or if you want to try and do some diagnostic yourself the first thing to do is to put a pressure gauge on the line pressure port and see what you have. Since the 1-2 is fine I doubt it will be a main line pressure issue but you have to eliminate that first. If line is normal then it is going to be in the valve body most likely. Someone probably went crazy in there enlarging the 2-3 feed orifice in the separator plate.
Robert Moreau
Technical Sales and Marketing Support Specialist
TransGo
2621 Merced Avenue El Monte, CA 91733 USA
Calibration | Innovation |Performance
https://transgo.com/our-products/
Okay thanks
This forum has the ability to host its own files as attachments, there is no need to post your stuff on some external 'whatever.io' bullshit site.
Ol Rob is ballsy, I wasnt going to open any of those files being it wasnt to HPT server lolThis forum has the ability to host its own files as attachments, there is no need to post your stuff on some external 'whatever.io' bullshit site.
*.io is always a marker of above-boardness. Always.
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