trans. fluid change?
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New User
Joined: Dec 2006
Posts: 14
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From: Harriman, TN
trans. fluid change?
hello guys, i have a question here. I have a 99 sd f250 4x4 with 157000 miles on it. i have put almost 40,000 on it myself. i need to know if its good to change just the fluid and filter or the whole thing as in the cooler and all. i have heard some bad stories about changing the whole fluid deal. i have never done it myself since i had the truck. it shifts good and all . i ahve a bully dog 6 position chip in it has well.the only thing i ever tow is a small camper 19ft hybird and thats it. thanks guys and sorry for the long write up ...perrie
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,704
Likes: 2,625
From: SE Florida
Change all of the fluid. Either drop the pan and drain the torque converter, or do an even better job with this procedure:
Changing ATF Fluid in a E4OD and 4R100 transmission .: Articles
Changing ATF Fluid in a E4OD and 4R100 transmission .: Articles
Senior User
Joined: Feb 2008
Posts: 237
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From: Glenwood Springs, Co
Just used this method worked great....make sure you use torque wrench on pan bolts....I did it with out draining torque converter. Just run through gears....it doesn't mention hittin reverse for a bit but i did and definitley got old fluid discharge...
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
hello guys, i have a question here. I have a 99 sd f250 4x4 with 157000 miles on it. i have put almost 40,000 on it myself. i need to know if its good to change just the fluid and filter or the whole thing as in the cooler and all. i have heard some bad stories about changing the whole fluid deal. i have never done it myself since i had the truck. it shifts good and all . i ahve a bully dog 6 position chip in it has well.the only thing i ever tow is a small camper 19ft hybird and thats it. thanks guys and sorry for the long write up ...perrie
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,704
Likes: 2,625
From: SE Florida
6a. At least one time while the engine is running move the shifter through each position from P to 1, pausing about 5 seconds at each position. This will change some fluid that would otherwise be trapped in the valve body, accumulators, and clutches.
