Rust in trans from dip stick tube?
Getting ready to go on a trip, I was checking the transmission fluid in our 06 E450 and saw some chunks of dark material on the last 2" of the dip stick. I felt it with my fingers and it was like a f...
Forum Discussion
leeper wrote:
Would a FORD dealer flush be recommended? FORD recommends trans flush. What is bad about a trans flush from FORD?
Ford does not do traditional "flushes". Their machines is non-pressurized. It's essentially a large chamber with a diaphragm, so the pressure of the old fluid betting pumped out pushes the new fluid it, so pressure in the transmission is exactly the same as during normal operations. It's actually called a fluid exchange by Ford. *Some* quick lube places now have proper fluid exchange machines, but not all.
Older transmission flush machines actually generated their own pressure, and would cause higher pressure in parts of the transmissions.
Ford only recommends a pressurized flush on the transmissions coolers, after disconnecting them from the transmission, and only when doing a transmission overhaul.
