trans cooler help
Thread Starter
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More Turbo
Joined: Nov 2010
Posts: 661
Likes: 53
trans cooler help
So i just picked up my remanufactured trans from the dealer by me and will be installing it this weekend if it all goes good. I plan to blow out the lines and internal radiater coller with n air compressor and carb cleaner. Any idea how much psi i can push though it safely? For insurance i wan to add a external cooler. Been readin about the plumbing for it and shut off valves. I mostly do summer driving so i dont think i need to have the external on a shut off valve but what do yall think? What brand and size cooler shoul i go with? Looking to spend about $150 on it.
Fleet Mechanic
Joined: Nov 2010
Posts: 1,347
Likes: 0
From: Kville, ohio
they actually make a cleaner that you hook to your cooler lines and cleans the s*** out of them, its loke an aresol can with a hose on it. id purge it with that, then blow a little air throught it, i wouldent go too crazy on the air pressure, 30 pounds would probably be plenty
Elder User
Joined: Dec 2006
Posts: 559
Likes: 4
From: On a farm.
Better to run liquid thru, in reverse flow, than air because it has the specific gravity to carry contaminants off. To be safe, install a Magnefine (Google it) inline tranny fitler on the return line to the trans. It will catch anything you miss in the flush (and it will miss alot), as well as break-in material from the new trans. Since you trans has a minimimal filter in the pan, the inline really helps keep the fluid clean down the road.
Posting Guru
Joined: Feb 2011
Posts: 2,216
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From: Princeton MN
2x everything Jim said, trans line pressure can get high, the sheet that told me how to adjust the vrv said it can reach 138psi. But get the cooler flush, put the first half of the can in the direction the fluid flows, then usethe rest to backflush it and then get the magnetic filter and put it on the return line after the aux cooler
Post Fiend
Joined: Feb 2009
Posts: 8,005
Likes: 7
From: Ottawa, Ontario
What do you use this truck for mostly? Hard work/hauling etc. or just drive around, occasional load here and there?
Tranny cooler 6x6 - 10x12 somewhere in that range would do you good if your not always working that thing.
I still gotta get one for the camper, haven't had the time yet.
Tranny cooler 6x6 - 10x12 somewhere in that range would do you good if your not always working that thing.
I still gotta get one for the camper, haven't had the time yet.
Thread Starter
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More Turbo
Joined: Nov 2010
Posts: 661
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I ran a can of Kool Clean though it today from Napa. I blew low pressure air to get any junk out but not to much came out. The cleaner can out clean at the end of the can. I mostly use the truck for driving but about 1/3 of the time i have a trailer or loaded bed. Nothing to crazy towin-mostly a double quad trailer or a tractor. My buddy has a coller from a 99 PSD that he took off during his upgrade. Im thinking of using that. Any thoughts how good thatd be? Im not sure of the size.
Posting Guru
Joined: Feb 2011
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From: Princeton MN
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Junior User
Joined: Feb 2009
Posts: 55
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From: Willamette Valley
I have 2 tranny coolers. just in case want to keep it cool. I also put a inline filter before all coolers.
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Posting Guru
Joined: Feb 2011
Posts: 2,216
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From: Princeton MN
So your like me and have 2aux coolers? I hope they are hooked in parallel, I was told when hooked in series they can cause some pressure drop.
Junior User
Joined: Feb 2009
Posts: 55
Likes: 0
From: Willamette Valley
I was told it would be fine. It runs fine. I have had that way for about 10k and no problems.
Cargo Master
Joined: Dec 2010
Posts: 2,123
Likes: 5
From: Fort Worth, TX
Here's a couple simple questions for y'all. Which line is the supply and which is the return when I am looking at the metal lines near the radiator? Which port on the radiator should each line be connected to?
I will be replacing the rubber lines when I do my transmission service. I will also replace the fluid, filter and pan gasket. Should I use transmission cooler line? I think there is regular fuel line on it right now.
I will be replacing the rubber lines when I do my transmission service. I will also replace the fluid, filter and pan gasket. Should I use transmission cooler line? I think there is regular fuel line on it right now.
Post Fiend
Joined: Feb 2009
Posts: 8,005
Likes: 7
From: Ottawa, Ontario
Faster way, disconnect both lines, start it up for 1 second, witch ever line pukes out oil, is your feed line.
I know on my E350 camper, the drivers side line is the feed line. Don't know if it's the same on the trucks though.
I know on my E350 camper, the drivers side line is the feed line. Don't know if it's the same on the trucks though.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,698
Likes: 2,620
From: SE Florida
Transmission line pressure can get as high as 330 PSI. But that doesn't matter because the cooler lines don't see any more than about 60 PSI. They do not get line pressure.