Converter flush?

[Gmirza]

Originally Posted by lorenr

Curious and probably a dumb question, but where does the "junk" come from that collects inside the converter?

Doesn't the transmission filter pick it up?

I've changed a fair amount of transmission filters and sometimes find a few metal specks, but very few. Powder residue is a little more common.

Loren

In my case, for some reason the front drum made contact with the back of the pump and wore a groove in it. This made a very fine aluminum dust that got by the filter screen. I don’t know what micron the screens are, but I’m guessing 100-150, which is quite large. Usually they are good enough for normal wear and tear. A stock filter probably would have caught most of it. But they are quite restrictive and can cause other issues.