Question on E40D flush
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Cargo Master
Joined: Jul 2009
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From: Des Moines
Question on E40D flush
Gonna be tackling a 1991 E40D flush tomorrow. This article Changing ATF Fluid in a E4OD and 4R100 transmission .: Articles says to have a length of clear tubing available to clamp over the tranny cooler return line. Can anybody give me a close approximation to the size of the return line nut so I can get the right size tubing? Thanks!
Post Fiend
Joined: Jan 2005
Posts: 8,402
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I have never done it but I would think you should be able to slide the pipe nut back on the pipe and push the plastic tubing over the pipe. So, I would think, you would need something around the dia. of the cooler pipe.
Just my guess.
Just my guess.
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Cargo Master
Joined: Jul 2009
Posts: 2,538
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From: Des Moines
That will work. Either way, I was just hoping someone could give me an approximate size so that I wouldn't have to read a tape measure. I know how to read one, I'm just lazy. 
Senior User
Joined: Sep 2010
Posts: 385
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From: Oregon
I need to do mine too.
Isn't there some catastrophic possibility
with some sort of flush trick that is
never recommended?
Back flush? maybe?
Just drain, try to drain the torque converter too>?
there are 2 different filters so get both and
HOW much ATF?
Pls let me know how that trans cooler line idea works.
Thanks
Isn't there some catastrophic possibility
with some sort of flush trick that is
never recommended?
Back flush? maybe?
Just drain, try to drain the torque converter too>?
there are 2 different filters so get both and
HOW much ATF?
Pls let me know how that trans cooler line idea works.
Thanks
Thread Starter
|
Cargo Master
Joined: Jul 2009
Posts: 2,538
Likes: 54
From: Des Moines
I need to do mine too.
Isn't there some catastrophic possibility
with some sort of flush trick that is
never recommended?
Back flush? maybe?
Just drain, try to drain the torque converter too>?
there are 2 different filters so get both and
HOW much ATF?
Pls let me know how that trans cooler line idea works.
Thanks
Isn't there some catastrophic possibility
with some sort of flush trick that is
never recommended?
Back flush? maybe?
Just drain, try to drain the torque converter too>?
there are 2 different filters so get both and
HOW much ATF?
Pls let me know how that trans cooler line idea works.
Thanks
As for the "catastrophic possibility" and "back flush," I don't know what you're talking about.
I'm sure the method outlined in that link will work properly- it makes sense when you consider that the tranny will be circulating the fluid and doing the work. I'm sure I have the right filter too.
I plan on taking it on next weekend so when it's done I'll let you know how it worked out.
Fleet Owner
Joined: Oct 2005
Posts: 20,780
Likes: 1,746
From: Kentucky
I used that procedure on my last '93 Lightning. IIRC I used 5/16 or 3/8" tubing. It has to be large enough to get over the flare on the end of the cooler line, not the nut. It took about 16 -18 quarts to do a complete flush/fill.
Senior User
Joined: Sep 2010
Posts: 385
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From: Oregon
Sorry I couldn't get to it today. I was going to but I had a couple other things to do first and by the time I was finished with them, I didn't have time.
As for the "catastrophic possibility" and "back flush," I don't know what you're talking about.
I'm sure the method outlined in that link will work properly- it makes sense when you consider that the tranny will be circulating the fluid and doing the work. I'm sure I have the right filter too.
I plan on taking it on next weekend so when it's done I'll let you know how it worked out.
As for the "catastrophic possibility" and "back flush," I don't know what you're talking about.
I'm sure the method outlined in that link will work properly- it makes sense when you consider that the tranny will be circulating the fluid and doing the work. I'm sure I have the right filter too.
I plan on taking it on next weekend so when it's done I'll let you know how it worked out.
I just called a local shop and for 100 bucks they'll hook it up to some machine, 'backflush' out the old oil as new oil goes in.
Apparently this break loose sediments by running fluids backwards somehow that are happy where they are (if the trans works ok)
and will cause more trouble than you could ever want.
My other local trans guy said to never do that.
do it the old fashioned way, get under there, drain it and the TQ if you can, get dripped on and messy and put in a new filter, of which, there may be 2 dofferent ones so get them both and return the one that doesn't fit.
He refuses to do them personally, so I know he's not trying to sell me something.
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Cargo Master
Joined: Jul 2009
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From: Des Moines
And I was reading thru the procedure here at home, trying to familiarize myself with it, and I was getting confused. It says the system holds 18 quarts total, but then at one point it sounded like I was going to be flushing 19 quarts all the way thru. I just checked and it's step 5 that I'm talking about, but maybe this is to bleed air out of the system? I'm just trying to be clear on this step as I bought $50 worth of tranny fluid for this and I don't want to just waste it, y'know?
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Senior User
Joined: Jul 2008
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From: Coatesville ,PA.
I just called a local shop and for 100 bucks they'll hook it up to some machine, 'backflush' out the old oil as new oil goes in.
Apparently this break loose sediments by running fluids backwards somehow that are happy where they are (if the trans works ok)
and will cause more trouble than you could ever want.
My other local trans guy said to never do that.
do it the old fashioned way, get under there, drain it and the TQ if you can, get dripped on and messy and put in a new filter, of which, there may be 2 dofferent ones so get them both and return the one that doesn't fit.
He refuses to do them personally, so I know he's not trying to sell me something.
Apparently this break loose sediments by running fluids backwards somehow that are happy where they are (if the trans works ok)
and will cause more trouble than you could ever want.
My other local trans guy said to never do that.
do it the old fashioned way, get under there, drain it and the TQ if you can, get dripped on and messy and put in a new filter, of which, there may be 2 dofferent ones so get them both and return the one that doesn't fit.
He refuses to do them personally, so I know he's not trying to sell me something.
Senior User
Joined: Sep 2010
Posts: 385
Likes: 0
From: Oregon
Ok, so there IS a basis in reality.
Thanks for the confirmation.
Kinda hard to be sure about much these days.
so...take the line off the back of the trans, slip on some tubing and run it
till it blows bubbles?
Also drain the torque converter plug hidden under some cover by the 'flywheel' i guess.
Gonna hafta wait until the weather breaks and get some nice big sheets of cardboard, turn the phone off and go cro magnon on it.
Mine shifts so perfectly at 160,000 mi. I'd like to keep it that way.
Thanks for the confirmation.
Kinda hard to be sure about much these days.
so...take the line off the back of the trans, slip on some tubing and run it
till it blows bubbles?
Also drain the torque converter plug hidden under some cover by the 'flywheel' i guess.
Gonna hafta wait until the weather breaks and get some nice big sheets of cardboard, turn the phone off and go cro magnon on it.
Mine shifts so perfectly at 160,000 mi. I'd like to keep it that way.
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