Auto trans flush

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Nov 9, 2015 | 07:15 PM

#16

Mark Kovalsky

Frmr Ford Trans Engr

Joined: Aug 1999

Posts: 24,731

Likes: 2,658

From: SE Florida

Quote:

Originally Posted by wirelessengineer

I can't think of any reason this would not work on any automatic transmission that has any kind of external cooler.

I can think of a reason. I'll even give you an example. The Ford 5R110 cannot be flushed with this method. It has an internal thermostat that will cause the new fluid to mix with the old instead of pumping out the old fluid.

But this procedure will work just fine with a 4R70W or 4R70E.

Nov 9, 2015 | 07:16 PM

#17

Mark Kovalsky

Frmr Ford Trans Engr

Joined: Aug 1999

Posts: 24,731

Likes: 2,658

From: SE Florida

Quote:

Originally Posted by wirelessengineer

I can't think of any reason this would not work on any automatic transmission that has any kind of external cooler.

Nov 11, 2015 | 08:29 PM

#18

wiskeyVI

Elder User

Joined: Feb 2015

Posts: 699

Likes: 5

From: S. Illinois

Thank you.

Nov 12, 2015 | 08:13 AM

#19

wirelessengineer

Laughing Gas

Joined: Feb 2005

Posts: 786

Likes: 26

Quote:

Originally Posted by Mark Kovalsky

Well! That's good to know. My newest vehicle is a '97, so I'm not up on current tech.

Heh. That opens up a whole can of worms on the debate about where to add and external cooler, but I won't get into that here.