2002 trans failed
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,731
Likes: 2,658
From: SE Florida
NEVER put a used converter on a new transmission! That's a good way to have to replace the transmission again.
You can flush the cooler lines. There is no good way to flush a cooler. The only way to keep the new transmission from failing from debris that works loose form the old coolers is to replace BOTH coolers when replacing the transmission.
You can flush the cooler lines. There is no good way to flush a cooler. The only way to keep the new transmission from failing from debris that works loose form the old coolers is to replace BOTH coolers when replacing the transmission.
Senior User
Joined: Oct 2015
Posts: 444
Likes: 0
Originally Posted by Mark Kovalsky
NEVER put a used converter on a new transmission! That's a good way to have to replace the transmission again.You can flush the cooler lines. There is no good way to flush a cooler. The only way to keep the new transmission from failing from debris that works loose form the old coolers is to replace BOTH coolers when replacing the transmission.
Fleet Mechanic
Joined: Aug 2006
Posts: 1,465
Likes: 17
From: Jacksonville, FL
Originally Posted by Mark Kovalsky
You can flush the cooler lines. There is no good way to flush a cooler. The only way to keep the new transmission from failing from debris that works loose form the old coolers is to replace BOTH coolers when replacing the transmission.
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More Turbo
Joined: Dec 2004
Posts: 527
Likes: 6
From: Jamestown Tn
the new trans mission has the converter included. I also will be replaceing the flywheel since i have a few bad teeth on it . I was using Penzoil ATF fluid. I was on the phone with Brians truck shop a few years back and he suggested to use it with the stock transmission. So i did get 280k out of the first stock transmission. I expect to get about the same on this one. I did upgrade to the 6.0 cooler soon after i bought the truck so that may have helped in the good milage on it.
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More Turbo
Joined: Dec 2004
Posts: 527
Likes: 6
From: Jamestown Tn
I plan on getting a stock 4R100 from Auto NAtion (past tousley). Converter is included. Im geting a new seal as well. Than since its apart i plan on putting in a new flywheel since a few of my teeth are missing. So my next question is the plan is to use BG products, however which one to use, Synth? or conventional. I had conventional pennzoil atf int the old trans it went for 280K. I do have the upgraded 6.0 cooler. So after its all flushed out approx how much would i need since i now have the bigger cooler? Im thinking 20 qts should be good. any suggestions?
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