I was about to change out my transmission fluid out now that Im at 30,000 and there is a nice drain plug on my transmission pan but I took the rubber plug out to drain the torque converter and cant find one there???? I removed the tin plate and cant find one there either? Is there one, kinda stupid if there isnt, was one on my 97 F150. This one is a 03 F350 with the 4R100.

 

No more torque converter drain plugs on the newer Superduties, sorry! Either drain and refill what you can (which is not as bad as it sounds if the fluid wasn't burned), or do the "pull the cooler return line and have the trans pump the fluid out for you" full-fluid change trick described around here somewhere or numerous places on the web.

Duncan

 

I have heard this before but My 02 has a drain on the TC, My neighbors 04 f250 also has a drain. Might try rotate the TC around and see if you can find it..

 

No I went around it twice, what a pain in the a$$. Im doing it in the driveway, had turn it, roll around and check it, turn it, roll around and check it. I changed the fluid in the pan that was it for today. I will either try the other method of the return line or will just change the five quarts in the pan every time I change the oil. I can buy the Motorcraft Mercon at the dealer for $1.95 a quart so the price of it doesnt bother me.

 

https://www.ford-trucks.com/article/...nsmission.html

Very usefull article written by Racerguy!

 

Are you sure the dealer quoted the correct fluid. I called a couple dealers around my parts and they both said $4.60 a quart for Mercon SP and it has to be SP. Also, from reading about the drain and fill hereon, I believe it takes almost 10 quarts and a new external filter (dealers wanted $53.00 for the filter--got a Wix from filter1.com for $12.00 with shipping).

 

There are three mercon fluids, Mercon, Mercon V, and a Mercon Synthetic. The one I bought was the Mercon that was what was listed for my truck regular Mercon, as what it said on the end of my dipstick. I didnt change the filter just pulled the drain plug on the pan and all I got out was about five quarts.

 

The article says it was written by Mark Kovalsky. Is that Racerguy?

I've used it several times. It works great!

 

Assuming "Mercon synthetic" is Mercon SP, then that is my understanding of the 3 fluids. Mercon goes in the E4OD and the 4R100 (like you said you have), while Mercon SP goes in the Torqshift. I don't know what Mercon V goes in, but it isn't a Superduty!

Duncan

 

"I believe it takes almost 10 quarts and a new external filter"

Is there a external filter also? I changed the filter in the pan, I thought that was it.

 

Yes the Torqueshift takes the SP fluid and has the external filter the one I have does not. BTW its 5.4, 350, 03 not a diesel.

 

4R70W and I believe the 5R55E. Lighter-duty transmissions put behind the 4.6L V8 in the F150, Expedition, Mustang, etc.

 

So is there an external filter on a 4R100? 03 CC 4x4 V10.

 

The 4r100 does not have an external filter from the factory.