I just went to a tranny shop and asked them to flush my tranny and they told me if you want a complete flush you need to go to the Local Ford dealer.


Is getting all the old fluid completely out real important ? I would Imagine the Ford dealer would want a pretty penny.....


Thank you for any help..

 

Thats strange, when I worked in a transmission shop we had a machine that you filled with atf, spliced it into the cooler lines, turned on the machine and started the vehicle then the machine would pump new fluid back into the trans as the trans pumped its old fluid into another reservoir on the machine and you just did that until the clean fluid reservoir was near empty. all those flush machines work about the same so I dont know what ford could do that a trans shop couldnt, unless the trans shop did not have a flush machine. You could go to one of those all in one car care stores like tires plus or jiffy lube for less than 100 bucks but then you run the risk of the "technician" being a moron and/or tearing your truck up.

 

It sounded strange to me too, Thanks and I will figure it out......

 

Do it yourself. Disconnect the line running from the cooler back to the transmission. Hook on a rubber hose. Get your self 3 1gal jugs. Here it is nice to have a helper. Start the truck run it until you see bubbles or the jug fills. Stop truck add the same amount of new fluid do this three times or until fluid being pumped out is new. Have done dozens of time.

 

Changing ATF Fluid in a E4OD and 4R100 transmission - Ford-Trucks.com

 

Thanks Mark that was very kind of you....

 

if you don't remove the pan you are wasting time and money,, what you want to get out is the clutch dust, and band dust, these particles will be in the pan, park rig, wait over night, drain out buy removing pan, change filter, clean the pan glue gasket to pan and replace..mercon V

 

^ What he said. Just drop the pan, clean out all the schmoo and change the filter. Drain the torque converter too, there should be a drain plug you'll just have to turn the engine with the inspection plate off until you see it.

 

I disagree with everything in this post except to use MERCON V.

Drain plugs were deleted at the start of the 2002 model year. If it's newer than 2001 there isn't a drain plug in the torque converter.

 

Care to provide the reasoning behind that statement?


I had to double check to be sure I did in fact post in the IDI section. I'm not aware of an 6.9 or 7.3 IDI newer than 2001, unless perhaps they were offered until fairly recently in some other countries?

 

The friction material dust will mostly come out with a fluid change. A little will stick to the bottom of the pan where it causes no problems.

The filter is a lifetime filter. If there is enough junk in the filter that it needs to be changed the transmission has already failed, and changing the fluid or the filter is just a waste of money.

The original gasket is a reusable gasket. The cork gaskets that come with the filter you don't need is almost guaranteed to leak.

You're right about the drain plug. I forgot which forum I was in when I posted that.

 

Thanks everybody, if the fluid looks real clean on the stick and the tranny shifts good should I still do it ?

 

Yes, you should.