transmission fluid FLUSH OR Drain/Fill??
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5th Wheeling
Joined: Sep 2020
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transmission fluid FLUSH OR Drain/Fill??
I have a 2008 F250, 6.4l diesel with 140000 miles. Would you power flush or just an old fashion drain/fill transmission fluid???
Last edited by Dieselcyrus; May 25, 2021 at 05:09 PM. Reason: found typos
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,740
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From: SE Florida
A powerflush is impossible. I recommend this procedure: https://www.ford-trucks.com/forums/1...-exchange.html
Since there is no drain plug in the torque converter you can only drain the pan, which will only remove about half of the fluid.
Since there is no drain plug in the torque converter you can only drain the pan, which will only remove about half of the fluid.
Fleet Mechanic
Joined: Feb 2002
Posts: 1,483
Likes: 273
From: Tulare U.S.A.
Drop the pan and change the filter replace the oil. If you are worried about not getting all the old oil out drop the drain plug and change the oil in the pan every other oil change.
engine
engine
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,740
Likes: 2,669
From: SE Florida
There was a running change in 2008 that changed the pan filter from lifetime to needing a change. If yours was built in the first half of the model year it was lifetime. If it was built in the second half you are way overdue for a new filter.
Hotshot
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