Trans Cooler Upgrade
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Freshman User
Joined: May 2002
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From: California and Idaho
Trans Cooler Upgrade
My E4OD overheats and belches fluid out of the converter shaft seal when I am making long slow climbs off road. It occassionally spikes at about 215-225 on long slow highway grades when towing.
It came with a factory trailer tow package and a plate type OEM heavy duty cooler (I think it's a Long Tru-Cool). I installed an Autometer trans temp guage at the pressure test fitting in the housing just above the pan on the left side. I guess that means I'm reading the fluid temp in the pan after the cooler and not as it exits the converter before the cooler.
I'm contemplating installing a 40K GVW Long Tru-Cool Max or a switchable Hayden electric fan infront of the factory cooler.
I would appreciate any advice on this matter including any installation tips.
Thanks JQ
It came with a factory trailer tow package and a plate type OEM heavy duty cooler (I think it's a Long Tru-Cool). I installed an Autometer trans temp guage at the pressure test fitting in the housing just above the pan on the left side. I guess that means I'm reading the fluid temp in the pan after the cooler and not as it exits the converter before the cooler.
I'm contemplating installing a 40K GVW Long Tru-Cool Max or a switchable Hayden electric fan infront of the factory cooler.
I would appreciate any advice on this matter including any installation tips.
Thanks JQ
Senior User
Joined: Aug 2004
Posts: 128
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From: St. Peters, Misouri
on my 2003 7.3 I installed a 40K Tru-Cool in-line with the OEM cooler,, never saw the tranny go above 170 degrees reading out of the test port where you have your pick-up located,, long hills and West Texas summers as well as Houston slow traffic,, was running Amsoil synthetic in the tranny,,
towing a fiver that truck and fiver weight together is in the 20,000 lb range according to the J Scales,,
install was fairly easy after removing the grill,, a couple extra feet of hose with the 40k would have been nice but made the install with what they provided,, mounted it vertically to the back side of the hidden grill braces,,
new 2005 F350 OEM cooler is more than twice the size the 03 had,, is a stacked plate also,,
enjoy,,
towing a fiver that truck and fiver weight together is in the 20,000 lb range according to the J Scales,,
install was fairly easy after removing the grill,, a couple extra feet of hose with the 40k would have been nice but made the install with what they provided,, mounted it vertically to the back side of the hidden grill braces,,
new 2005 F350 OEM cooler is more than twice the size the 03 had,, is a stacked plate also,,
enjoy,,
Senior User
Joined: Aug 2004
Posts: 128
Likes: 0
From: St. Peters, Misouri
pulled the output of the OEM cooler and fed that into the 40K and the 40ks output feeds back to that tranny line returning to the tranny,, on my 03 the return line was the back on line on the tranny,, if your can chase them entire line down,,
helps to loosen the top brackets on the air-condition coil and lean it forward so you can reach down into the area,, working the hoses at the bottom of the OEM cooler is tight and light gloves will save numerous cuts from the fins on both sides of your work area,,
enjoy,,
helps to loosen the top brackets on the air-condition coil and lean it forward so you can reach down into the area,, working the hoses at the bottom of the OEM cooler is tight and light gloves will save numerous cuts from the fins on both sides of your work area,,
enjoy,,
Last edited by Tuggingafiver; Dec 14, 2004 at 02:45 PM.
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