transmission fluid change
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New User
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transmission fluid change
hello all;
This is my first post.
I have a 1990 E-250, 351 Windsor, Auto.
I am about to give it a transmission fluid and filter change. This will be the first time that I have done so.
My transmission pan has a 20 bolt pattern.
Could anyone give me advice on how to proceed to get the maximum benefit from this change. Such as, is it really necessary to drain the fluid from the torque converter also. And if so, what steps are needed and in what order.
I have never in my life touched a torque converter.
Thank you,
Econobug.
This is my first post.
I have a 1990 E-250, 351 Windsor, Auto.
I am about to give it a transmission fluid and filter change. This will be the first time that I have done so.
My transmission pan has a 20 bolt pattern.
Could anyone give me advice on how to proceed to get the maximum benefit from this change. Such as, is it really necessary to drain the fluid from the torque converter also. And if so, what steps are needed and in what order.
I have never in my life touched a torque converter.
Thank you,
Econobug.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,723
Likes: 2,650
From: SE Florida
Here's how to do it: Changing ATF Fluid in a E4OD and 4R100 transmission .: Articles
If you don't want to do that and just drain you need to drain the torque converter, too. It holds about half of the total fluid.
If you don't want to do that and just drain you need to drain the torque converter, too. It holds about half of the total fluid.
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Mark Kovalsky;
I had read that article about 2 hours or so before I joined this forum and posted. And to be honest, it was that article that got me perplexed. In fact, I bookmarked it as to reread it again. After I had posted here in the forum I read the article again. It gave me a whole new insight into the changing of transmission filters and fluids. Because of that article, I spent quite a bit of time last night trying to figure out an easier method, or at least, trying to find an article to persuade me not to go near the torque converter.
I have always, with any of the vehicles that I have owned, and just recently with my Sidekick, have merely dropped the pan and installed a filter and new fluid. I have never given any thought to the torque converter.
And now, my first post on this forum was answered by the man whose article inspired me to write it. It must be a sign.
Thanks Mark. I shall reread until I feel confident enough to do it. I shall let you know.
Econobug.
I had read that article about 2 hours or so before I joined this forum and posted. And to be honest, it was that article that got me perplexed. In fact, I bookmarked it as to reread it again. After I had posted here in the forum I read the article again. It gave me a whole new insight into the changing of transmission filters and fluids. Because of that article, I spent quite a bit of time last night trying to figure out an easier method, or at least, trying to find an article to persuade me not to go near the torque converter.
I have always, with any of the vehicles that I have owned, and just recently with my Sidekick, have merely dropped the pan and installed a filter and new fluid. I have never given any thought to the torque converter.
And now, my first post on this forum was answered by the man whose article inspired me to write it. It must be a sign.
Thanks Mark. I shall reread until I feel confident enough to do it. I shall let you know.
Econobug.
Fleet Owner
Joined: Aug 2010
Posts: 21,253
Likes: 1,656
From: Reynoldsburg, Ohio
Consider installing a pan drain plug---available from NAPA et al for about $7 and makes next change so much easier. Better to drop an almost empty pan instead of one full of fluid.
I'll second changing the TC fluid too--as Mark says it contains at least half the total fluid in the entire transmission. I believe the TC drain plug is not reusable so maybe have one on hand when doing the service. (This might not apply to your '90---it is mentioned specifically for my '00 4R70W).
I'll second changing the TC fluid too--as Mark says it contains at least half the total fluid in the entire transmission. I believe the TC drain plug is not reusable so maybe have one on hand when doing the service. (This might not apply to your '90---it is mentioned specifically for my '00 4R70W).
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Senior User
Joined: Dec 2007
Posts: 419
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From: Lakefield Ontario
My dealer wants to use a fluid exchange service machine to change the fluid, he tells me it is the newest and best thing ever.
But expensive as well, he wants $250 to do it, plus the filter on my 97 E-150. Is it worth it, does it do what is advertised?
But expensive as well, he wants $250 to do it, plus the filter on my 97 E-150. Is it worth it, does it do what is advertised?
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,723
Likes: 2,650
From: SE Florida
It's not up to me to decide if it is worth it. I think the fluid exchange machines are the best way to change all of the fluid. They will change about 95% of the total fluid. The only way to change more than that is to remove the transmission and totally tear it down.
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