remarks on valvo's dex/mex full syn maxlife!

[MolaKule]

Originally Posted By: stower17
I tried lubegard red as well. It made things worse and thats when i went to a trans shop.

Symptoms in my car were 1-2 shift slip when trans was cold, and falling out of lockup and then slamming back into lockup when accelerating, especially when going up hills on highways. When the car was in lockup torque converter i couldnt accelerate without it slipping and slamming back into lockup. Also, it had developed a slight delayed engagement going from park to drive or park to reverse.

All fixed now.


I'm curious. What specifically did the shop do?

Replace valve body, TCC, solenoids???

Sounds like you had an internal problem no fluid or additive could fix.

 

[Blinker]

The shop hooked up a laptop to my cars computer, and drove it around, watching all the percentages and values needed when the veh shifted. The trans shop owner is a family friend and very honest and a great rebuilder. He said everything internally was working fine and he mentioned I might have a fluid presure problem. Fluid condition and level were fine.

I took it home after being told nothing was "wrong", dumped in the trans tune and that was basically then end of that. I serviced it 3 times after leaving the shop.

There are GM service bulletins on my trans stating that the pressure control solenoid can be contaminated and causes shifting issues. It goes on about installing the updated pan magnets and where to place them in the pan. I may get the updated magnets next service i do.

In my situation it was a fluid pressure problem. Never would have imagined that in my life.