Something interesting I found while googling:

http://www.suite101.com/content/tran...lushing-a39896

Dont know how accurate it is though.

 

very good info!. i wonder if we have a drain cork for our Torque converters haha

 

I've also heard that it's not good to do a 'full flush' or whatever on your car because it can cause the older deposits to come out of the cracks and cause a lot more problems.. Heard it a good while back, but I have heard that before..

Hmm maybe i'll just do another drain/fill and see if that helps..

 

go0od adviceee

 

Nice Finds. Sounds legit, to be on the safe side just avoid it unless dealer recommended.

 

That's what I've always heard. From corvettes to f150's, avoid a full flush, especially with a lot of miles. I've been doing a drain and refill on my GS300 every other oil change (on the 3rd now) and the fluid is slowly starting to look and smell better. It worked fine before and I haven't noticed any difference in performance, I just know it needs it after 140,000 miles.

 

for me, i had installed the B&M tranny oil cooler, so i specifically told them that, and specifically asked for a low pressure flush. thats why my flush took a full hour, instead of just the 1/2hr rate that is normally billed. i also made sure to ask if they had a variable pressure adjustable tranny flusher at the toyota dealership, i explained to them why (the tranny cooler). i didnt rush them either. so far so good, it fixed my shifting issue (2 weeks before i booked the appointment, the tranny was having trouble getting into 1st gear and would be starting off from 2nd gear. i knew the fluid was fairly dirty (bought the car as is, and no where in the stacks of invoices did the previous owner do a tranny fluid flush or drain/fill). if the flush didnt fix the problem, then the next step would have been the 1st to 2nd gear servo.