Vf ssv 2. ls3 Automatic Transmission issue

[dgp]

Take a look at this. It’s a known issue from GM in the states and is a normal characteristic of the box supposedly

https://www.revbase.com/BBBMotor/TSb/DownloadPdf?id=196870

Interesting that they say to use a tech II to record throttle position, I didn’t think they were used for VF models.

 

[rognvald261]

My old VE did it and my now current VF SS. Nothing to worry about

VF has full exhaust Otr and Mafless tune

No, your trans is getting incorrect torque data from the ECU because it is MAFless tuned.

 

[rognvald261]

To summarise it says can get rid of it by reset and doing Garage Adapts.
If still drama (while at operating temp) then it suggests learning the 2-3 shift accurately by monitoring throttle position.
*says Tech II but that’s for GM service people, any measure of actual throttle position (not commanded) is fine for this.
Paper says making the 2-3 shift per precisely measured throttle many times so TCM learns correct adapt.
In essence what I was saying, don’t think in terms of RPM having any bearing on the execution of shifts, is accelerator position (commanded) vs throttle position (actual) vs load (torque demand).

 

[Jackel]

may have to do a solenoid oil dump and relearn just encase one has too much pressure or a blockage on restart causing it to hold gear

Can i take it to my mechanic to do a solenoid oil dump and relearn or does it have to be taken back to the tuner to do this?
My mechanic doesnt have a dyno btw only the tuner does.

 

[07GTS]

should be able to do it with the right scan tool, or may be better with tuner as can do the dump and relearn and test drive while logging to see where its all at

 

[Jackel]

Can someone explain to me in basic terms what exactly is involved with regards to a solenoid oil dump?

 

[Jackel]

should be able to do it with the right scan tool, or may be better with tuner as can do the dump and relearn and test drive while logging to see where its all at

Do u know what is involved in terms of doing a solenoid oil dump?

 

[07GTS]

Do u know what is involved in terms of doing a solenoid oil dump?

ive only noticed it in hptuners but im manual so have never used it, it pretty much just purges all oil out of the solenoids and then u have to run it stationary thru some sequences to refill and then prob best to do a relearn as it will all be different then drive it and see how it goes

 

[07GTS]

this is old post but bit of into there about it, post #1 and #76 have the info about how it works
https://forum.hptuners.com/showthread.php?37670-New-scanner-VCM-Controls

 

[Jackel]

Just to recap! When the engine is warm the car revs to 4,500rpm when starting the car and taking off aggressively and then shifts & holds the second gear way too long.
Only happens straight after starting the car each time.
The mechanic says its normal for the vf ls3 to do this and there is no need for a solenoid oil dump or transmission relearn.
Its driving me nuts.
Is anyone else experiencing this problem?
Thoughts?