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Cold Transmission Fluid Exchange

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Cold Transmission Fluid Exchange

 
  #1  
Old 02-26-2018, 03:34 PM
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Cold Transmission Fluid Exchange

Not sure if everybody has seen this over on the Superduty forum but it looks interesting. Thoughts?

https://www.ford-trucks.com/forums/1...-exchange.html
 
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Old 02-26-2018, 07:01 PM
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Thanks for posting this up -- it has been brought up before and now is in the Tech Section.

Personally, I think the need for a full fluid exchange is when the fluid has gone too long without normal service. I think if you are running the 6.4 filter, dump and fills will do, with a filter change every 60K.

But that is just me...

I had an interesting discussion with the guy I bought our Motorhome from, who happened to be a GM transmission guy his whole career.

He was not convinced I had any need whatsoever, to change the fluid in our Allison 3000 to the new Transynd synthetic fluid. He basically said he thought people changed their trans fluid too often and synthetic was not needed in our application -- it is just a 33' class A with a HUGE transmission in it; same MH came with an Ally 2000 and 2500 most of the time...

Longer service intervals and even more temperature stability was my reason. So why would I question my 6.0 brethren wanting to do full fluid exchanges doesn't make any sense...

We all do what we want to do...

Scott
 
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Old 02-26-2018, 07:33 PM
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I'm doing the 6.4 pan and filter so I'm going to do this method while I'm at it. Bought the truck with just under 160K and now has just over 180k. Had a shop do the last transmission service and I doubt they did a full fluid exchange. Don't know how it was treated before so figure it's a good time to do this.
 
  #4  
Old 02-26-2018, 10:24 PM
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Originally Posted by akblackfoot View Post
Not sure if everybody has seen this over on the Superduty forum but it looks interesting. Thoughts?

https://www.ford-trucks.com/forums/1...-exchange.html
I think it's a great idea. I recommend it.
 
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Old 02-28-2018, 06:55 PM
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Originally Posted by Mark Kovalsky View Post
I think it's a great idea. I recommend it.
This sounds like the way to go!
Doing it this way, will it completely and quickly flush through the torque converter? (I.E how fast does fluid exchange through the TC under normal operation?)

Rick
 
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Old 02-28-2018, 10:57 PM
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Originally Posted by HT32BSX115 View Post
This sounds like the way to go!
Doing it this way, will it completely and quickly flush through the torque converter? (I.E how fast does fluid exchange through the TC under normal operation?)
Yes, it will quickly flush the torque converter.
 
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Old 04-07-2018, 05:59 PM
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Just did this today and did the pan and filter upgrade. The old filter has a May 2012 stamp on it so it was changed at some point. Not very much on the magnet Only thing that was a little hiccup is the tube diameter you need is 1”OD and not 3/4 as in the video.

I used the 6gallon bag in a box Mercon LV. I also cycled through the gears while it was flushing as Mark suggested. Not sure how much better this is for my truck but it gives me a good feeling anyway. 😉.
 
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Old 01-23-2019, 12:24 AM
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Love it, thank you
 
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Old 01-24-2019, 10:14 PM
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Originally Posted by HT32BSX115 View Post
This sounds like the way to go!
Doing it this way, will it completely and quickly flush through the torque converter? (I.E how fast does fluid exchange through the TC under normal operation?)

Rick
Rick I have a local place that has the large 6 gallon boxes in stick last time I checked.
I picked up two of them last time I was up that way. They still had a back room full of them.
 
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Old 01-25-2019, 03:07 AM
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Originally Posted by Yahiko View Post
Rick I have a local place that has the large 6 gallon boxes in stick last time I checked.
I picked up two of them last time I was up that way. They still had a back room full of them.
Hey thanks for that! I am going to need to do this pretty soon too. I already have the new pan and filter.
 
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Old 01-25-2019, 04:23 AM
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I have one sitting here waiting to be installed. With the silly things I have
found in this truck I really want to flush out any crap the PO may of done.
Also will that heater use trans fluid?
 
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Old 01-25-2019, 11:13 AM
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When I did this, I had the wife count to 4 in each gear while I watched below. That was enough time to make it through all the gears and back to P with a little to spare before killing the engine.
 
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Old 01-25-2019, 05:43 PM
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Originally Posted by Yahiko View Post
I have one sitting here waiting to be installed. With the silly things I have
found in this truck I really want to flush out any crap the PO may of done.
Also will that heater use trans fluid?
It will,

All motor oils up to SAE50, all hydraulic fluids, diesel, kerosene(jet fuels, Diesel #1 etc) non-volatilepaint thinners are all good............ (but NOT acetone, lacquer thinner or gasoline) , basically any hydrocarbon that does NOT produce an ignitable vapor at room temps.......or it can go BOOM!

They recommend not running it on hypoid gear lubricant......I take that to mean do not run it straight. I have been dumping gear lube in the tank since I have had it. It's very small amounts though...on the order of maybe 5% or so. I just have to be careful to ensure there's no water in any of the oil I put in there.

I suspect I could even burn vegetable oil but it doesn't mix well with regular oils.

 
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Old 01-25-2019, 06:43 PM
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Well them you can have it when I have done the job. The hypoid gear lubricant may be the sulfur content.

I think it would be handy if someone where to turn an adaptor out of aluminum with some O-rings that
would fit into the pump intake (where the filter neck goes) and not have to fuss with the fitting of a hose.

Even better would be a plastic or a teflon (Expensive) insert. But really that would be some thing a
small shop would find handy to have that deals with the 5R110W trans a lot.
 
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Old 01-26-2019, 03:17 AM
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Originally Posted by Yahiko View Post
Well them you can have it when I have done the job. The hypoid gear lubricant may be the sulfur content.

I think it would be handy if someone where to turn an adaptor out of aluminum with some O-rings that
would fit into the pump intake (where the filter neck goes) and not have to fuss with the fitting of a hose.

Even better would be a plastic or a teflon (Expensive) insert. But really that would be some thing a
small shop would find handy to have that deals with the 5R110W trans a lot.
It seems that 1" OD clear vinyl hose does the job doesn't it?
But I think a better choice might be cutting the "snorkel" off an old filter and just using a few simple plumbing fittings to connect it to a hose.

 

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