Draining Torque Converter
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Mountain Pass
Joined: Sep 2012
Posts: 219
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Draining Torque Converter
Hey guys! I'm back at it again. I'm trying to service the transmission on my 1990 F250 4x4 with the E4OD. I've already dropped the pan and cleaned it. Now I'm trying to find the drain plug in the torque converter. I've already removed the flywheel inspection plate. As I understand it, the drain plug should be at the base of the torque converter, right? I've spun the motor over several, several times and I did not see any drain plug.
Any thoughts, ideas, suggestions, or pictures would be greatly appreciated.
Thanks!
Any thoughts, ideas, suggestions, or pictures would be greatly appreciated.
Thanks!
Logistics Pro
Joined: Nov 2013
Posts: 3,922
Likes: 1,192
From: Mojave, Ca
Hello, on my '94 f350, there is a 1/8" NPT drain plug on the outside diameter of the converter, not the flat front face. It should stick out like a sore thumb. I had someone bump the starter while I watched the converter. When you do find it, make sure you have a BIG drain pan since the converter holds over 2 gallons of fluid.
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Mountain Pass
Joined: Sep 2012
Posts: 219
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Thanks for the reply. I've been looking for any sign of a drain plug and I can't find anything. I've had my wife bump the starter so many times that it killed the batteries. Is it possible that the torque converter is a replacement? ...a replacement with no drain plug?
More Turbo
Joined: Feb 2004
Posts: 643
Likes: 3
From: North Branford
Thanks for the reply. I've been looking for any sign of a drain plug and I can't find anything. I've had my wife bump the starter so many times that it killed the batteries. Is it possible that the torque converter is a replacement? ...a replacement with no drain plug?
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Mountain Pass
Joined: Sep 2012
Posts: 219
Likes: 0
Hey guys. I really appreciate all of the feedback and the pictures. That was exactly what I was expecting to see but it simply was just not there. Oh well! No worries!
I reinstalled the flywheel inspection plate and transmission pan. I'm just going to top the old Blue Basturd off and change it again in 15k or 20k miles. The fluid didn't look that bad, but I haven't had the truck long and have just been going through the normal fluid changes. I guess my next endeavor will be the coolant. Thanks again!
I reinstalled the flywheel inspection plate and transmission pan. I'm just going to top the old Blue Basturd off and change it again in 15k or 20k miles. The fluid didn't look that bad, but I haven't had the truck long and have just been going through the normal fluid changes. I guess my next endeavor will be the coolant. Thanks again!
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Fleet Mechanic
Joined: Oct 2012
Posts: 1,943
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Can't you flush the fluid out of the torque converter by taking off the trans line where it enters the radiator cooler. Stick the line in a bucket (may have to add some tubing to reach). Then start the vehicle up. Have a person pouring ATF into the trans and watch the fluid coming out. When the fluid coming out is red/clean you are done. Hook it all back up and top off the fluid.
Shifting into all the gears while doing this process helps get all the old fluid out.
Shifting into all the gears while doing this process helps get all the old fluid out.
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