Do i just pull this out (with force), after i remove the white cap? it doesnt want to come out very easily.

What i want to do is have the return line, which would be the cooler line, in a bucket filled with new transmission oil. and have the supply line, the warmer line, in a empty bucket. and flush the entire system with about 12 quarts

I have a black 2007 f150 stx 4.2 v6

 

That does not appear to be a cooler fitting. Or it could be the angle of the photo.


Your theory is flawed about changing fluid.


Coolers are supplied fluid from the transmission pump which must be turning to get any pressure.

 

duh! i knew that... i guess just one bucket then. ill get a better picture up today. thanks for your input

 

 

if the pump is forcing fluid out of the line pressure needs to come from somewhere. i think the return line will return the fluid, if it is disconnected sitting in a bucket filled with fresh oil. it just makes sense.

 

Nope. Fluid must be picked up from the filter in the pan. Then pushed through the cooler.


But I know you won't believe and will try it your way.

 

just because i wont take your opinion doesnt mean i dont believe you. thank you for trying to give me a heads up. i will make sure to do more research before i waste my time and effort. do you think those picture of the line is the where it needs to be removed for a flush or is this the spot

 

I do not know what that block is. It could be to an external cooler.

The one shown at the rad is a cooler line.

By your saying you will do more research says you do not believe me.


I guess my fifty years in the transmission industry was all for naught.

Bummer.

 

this is no offense to you, but i have filled my share of mis-guided information from people over the internet. if your words are true they will be used if not no big deal. and just to clear things up, the cooler line is what i call the transmission line, right? i dont know terms very well, but i do appreciate the help.

 

The way a 'total fluid replacement' machine works is the cooler lines are disconnected. They connect the pump line to one end of a large transparent cylinder with a 'floating' piston in it. The piston is all the way to one end of the cylinder. The pump line extension allows the pumped fluid in under the cylinder. The other part of the cylinder is filled with new fluid and the cooler return line back to the trans is connected to it. The pumped fluid pushes the piston which in turn pushes the new fluid into the trans. Because the engine is running, this exchanges all the fluid including the torque converter.
Because your plan is to simply have the return hose in a bucket of fluid, you will not get any new fluid into the trans. There is no suction action on the return line.
What you can do instead is to pull the trans pan and catch all the fluid in a large flat pan. Then using a calibrated milk jug, measure how much fluid came out. You might want to replace the filter (if any) and pan gasket at this time. Replace the same amount with new fluid that you can put in using the dipstick tube. This changes about half the fluid. You can do this again when you change the engine oil next time or maybe in six months or so. You have to do it at least three times to get most of the old fluid out.
Or, you can go to the shop and get a Total Fluid Replacement and be done with it for a long time.

 

so i got my truck's transmission flushed. but the guy who did it told me the fluid was still dirty. but he took the machine apart and said he was done, and charged me 150 for it. it is factory recommend that the transmission is flushed at 90,000 miles and im just a hundred under that. should i keep dropping the pan till its good and not go back to this guy or is it cool?