Originally Posted by 1993 SLE
Originally Posted by toxictelevision
The tranny fluid level stays good now, but I'm thinking about getting a total flush soon..Not sure what to do for it.
sometimes that can be the worst thing you can do....all the little particles that are holding the trans together will get dislodged and could possibly lead the trans to an even early death
When my 4T65E was analyzed as having the lockup torque converter control valve sticking, a total flush was not recommended by my service manager. I had changed fluid at 65000 mi.
I would do what I've done if you want to "clean" out the gunk. I changed fluid about every 10K for 3 times. I changed the filter on the 2nd change just in case some gunk and shellac had been caught in the filter. Original filter had been changed at 65K.
The first change at 80K got 7/12ths of the bad stuff out; 5 quarts of fluid from 65K change left. The next change left about 3 quarts of original fluid (from 65K change) in. The next change left about 1 quart of original fluid. But each time, I was upping the cleaner and additive level in the fluid to take out shellac or gunk. Instead of a rapid increase which might get more loose in pieces, I hope I dissolved it over time.
Now I'm at 130 K. No failure yet.