That's replacing the fluid, not flushing the transmission. To flush you need a flow of clean fluid through the transmission.brucki15 said:I work at fastlube. i dont know about others but we completely flush it out. we pump out the old fluid and stop when we've pumped about 15 or so quarts (more if the fluid is still dirty). i would definetly watch them while they do it. i hate it when those pricks watch me
J.D. said:That's replacing the fluid, not flushing the transmission. To flush you need a flow of clean fluid through the transmission.
Using either method - pumping or flushing - the filter is not replaced. So in my opinion you should drop the pan, drain the converter, and replace the filter.
How can you flush it if there is only one opening (the dipstick tube)? To run clean fluid through everything, you'd need an inlet at one end and an outlet at the other.brucki15 said:Yes, that is flushing. We pump clean tranny fluid through everything until it comes out completly clean.