Transmission Problem (TCC)

[nkmhockey]

This actually all makes sense. I bought the car used when it had around 100,000 miles on it. If there were any previous drivability problems, they occurred and went away before I got the car.
If the TCC was being engaged at all speeds for an extended period of time (thousands of miles), then I would imagine that would cause excessive wear on the TCC bore from constant cycling on/off at lower speeds. Therefore, it is not outside the realm of possibility that this excessive cycling caused the TCC to begin slipping when it was engaged. I believe the TCC slipping is what caused the fishbite I was experiencing.

I have been driving the car since Sunday, absolutely no problems and no fishbite. It runs perfectly – I will be sure to post any gas mileage difference the next time I fill the tank. I hope this helps anyone in the future who experiences this same problem. Thanks to everyone for all the help!

[rick444]

My 4t25e tcc oscillates after warm up.
What if I use a cooler thermostat until I can put a new valve into the body?
Would the cool fluid aid in keeping the tcc engaged? Cool oil is thicker?
Add a trans cooler?
Summary:
Motor is perfect, and all tuned w/o any ck engine.
Tcc likes cool fluid (a viscosity issue)?
All shifts are perfect including oscillations.
What about additives? Lucas?
Dare i consider stp (one bottle)?
Will a new filter make for better flow?
I got this used and shifts are so good that i did not notice the tcc oscillation.
Fluid is red no burn and clear.
If I keep driving I fear the tcc clutch will wear.
Can i get help to temporarily cut the signal and keep the tcc clutch inactive?
Will anything else get the tcc out till I get a more permanant solution?
I guess it is possible to use a sonnax tcc valve seal kit, but is a difficult job for now.
Other ideas? I am still studying.
Much obliged.