• Register Today It's free! This box and some ads will disappear once registered!

Where to put a secondary transmission cooler?


bronchole

Driveway flexing!
Elite Explorer
Joined
May 13, 2009
Messages
735
Reaction score
14
City, State
Los Angeles, CA
Year, Model & Trim Level
1997 Monsterneer
Callsign
KI6MCO
I have started doing allot of towing with my Monsterneer. The limiting factor for towing (heat wise) has started showing as the transmission. I have a pretty tired 5.0 (190K miles) in it now, but in the next year or so I am looking to put a hopped up 347 in it. That will really heat things up. The trans can easily get going north of 230°F climbing hills while towing my 4000 pound trailer. It has the factory towing package with the cooler in front of the radiator.

I also have a 9000 pound winch "hidden" in the bumper. I am looking for any other alternative auxiliary cooler mounting locations. What have you all been doing?

I have seen the posts by Aldive and the others that mounted a second trans cooler to the drivers side of the original one. That is what I am considering for now, but I would really like to mount a remote one with a fan on it.
 


Join the Elite Explorers for $20 per year. Gets rid of the ads! New $5 per month "try out" option.

Explorer Forum has probably saved you that much already, and will continue to save you money as you learn how to diagnose fix problems yourself and learn which modifications work without having to experiment on your own. Elite Explorer members see no advertisements, no banner ads, no double underlined links, can add their own profile photo, upload photo attachments in all forums, and Media Gallery, create and save more private Conversations, and more. Join Today. Your support is greatly appreciated.




Mbrooks420

High Voltage.
Elite Explorer
EF Vendor
Joined
February 2, 2002
Messages
10,305
Reaction score
1,573
Year, Model & Trim Level
1998 Mountaineer AWD
It’s really hard to beat the amount of free air that flows over the front of the rad/condenser.
72DFA59F-A06A-4C1C-B5D9-644ED2B58F81.jpeg


Something like this could be used to replace the factory for some extra cooling capacity. (Tru-cool)

They also make inline coolers that are meant to mount along side the frame rails. If you add a substantial amount of cooling I might consider pulling the radiator out of the loop.
 




93XploderMS

Member
Joined
November 7, 2015
Messages
59
Reaction score
55
City, State
Keizer, Or
Year, Model & Trim Level
1997 Explorer limitless
I would double check flow from the radiator. If I remember right it should be 2 quarts a minute or 1/2 quart in 15 secs. Mine was way below that. After I replaced the radiator with one from oreilly’s my flow went to, 1/2 quart in 12 secs. Simple test with 2 people and empty oil jug. You can also check the stock cooler with the radiator (whole system)

4K is a bit of a tug but not excessive.
 




boominXplorer

Elite Ranger
Elite Explorer
Joined
September 16, 2002
Messages
9,223
Reaction score
668
City, State
Virginia Beach, Va
Year, Model & Trim Level
00 4x4 Mounty
On my old mountaineer I used a 2nd factory one in line on the other side of the grill. Its a little funny to mount but with a little L bracket you can get it done.
 




Turdle

Habla tortuga
Staff member
Moderator
Elite Explorer
Joined
June 16, 2003
Messages
29,584
Reaction score
1,103
City, State
Humboldt, KS
Year, Model & Trim Level
2000 Mounty
It’s really hard to beat the amount of free air that flows over the front of the rad/condenser.
View attachment 167956

Something like this could be used to replace the factory for some extra cooling capacity. (Tru-cool)

They also make inline coolers that are meant to mount along side the frame rails. If you add a substantial amount of cooling I might consider pulling the radiator out of the loop.

By far the best results I achieved was the mod I first saw performed by @traveler, combined with bypassing the radiator all together because 195 degree coolant will not cool a 190 degree transmission well. I use a scangauge to monitor trans temps.



Use a ford super duty cooler mounted low on the condenser with 2 7" fans. Using 2 coolers will work but it doubles the amount of connections and clamps for leaks.

I found the engine fan alone, at idle, will suck a cigarette ash through the trans cooler fins. Your hidden winch location may interfere though, I am not sure



where the fans are located tucked behind bumper

 




traveler

Staff member
Moderator
Elite Explorer
Joined
March 14, 2005
Messages
1,182
Reaction score
317
Location
Mesa AZ
City, State
Mesa
Year, Model & Trim Level
2000 EB Explorer 5.0
I am towing pretty much the same weight you described (a travel trailer) with an Explorer/Mountaineer just as described (190K miles, 5.0, tow package) and the transmission rarely gets over 210 degrees (Scangauge II). I'm also towing in mountains between 1500 and 7500 ft. I have a two row all aluminum radiator, and the previously mentioned all aluminum F-350 Super Duty transmission cooler. (Thanks for the Kudos Jon!) Each does its job independently of the other. I do plan to move the cooler a little farther forward to make room for the fans to draw air through rather than push as they currently are. I also plan to move it higher to make room for a front receiver hitch.
 




CDW6212R

Hauls the mail.
Elite Explorer
Joined
June 17, 2004
Messages
20,621
Reaction score
1,645
City, State
Knoxville, TN
Year, Model & Trim Level
98 Limited AWD
I like the super duty cooler the best for its size, one cooler as said is better than one. I wonder if that long kind of cooler can be placed vertical, leaving the one side open that has the cooler side of the condenser, the outlet side. That would help the AC, and reduce the need for air flow down low, behind the bumper area. I'll work on that for my 99 truck this Spring.
 




bronchole

Driveway flexing!
Elite Explorer
Joined
May 13, 2009
Messages
735
Reaction score
14
City, State
Los Angeles, CA
Year, Model & Trim Level
1997 Monsterneer
Callsign
KI6MCO
Wow, thanks for all the responses. I'll look in to the flow without any cooler in line and then check with the factory cooler as a starting point. From your responses I'm thinking u will look in to that super duty cooler and see if I can add a fan to it also.
 




traveler

Staff member
Moderator
Elite Explorer
Joined
March 14, 2005
Messages
1,182
Reaction score
317
Location
Mesa AZ
City, State
Mesa
Year, Model & Trim Level
2000 EB Explorer 5.0
LoL ya know, I was just thinking the same thing about the vertical placement. I think I'll look into that as well. If it fits that would do wonders for my cooling, and space.
 




CDW6212R

Hauls the mail.
Elite Explorer
Joined
June 17, 2004
Messages
20,621
Reaction score
1,645
City, State
Knoxville, TN
Year, Model & Trim Level
98 Limited AWD
We have the benefit of a huge radiator. You off road guys should really appreciate that with the large bumpers you have to use that blocks the bottom section. The AC condenser is fairly big too, so the trick is to cool the trans etc, and have plenty left for the engine. I still need to change my thermostat out, it's getting old having a CEL come on most every time I drive. Temps in the 130's will do that I guess, as I said, huge radiator we have.
 




2TimingTom

Well-Known Member
Joined
October 12, 2010
Messages
2,495
Reaction score
62
Location
Littleton, CO
City, State
Littleton, Colorado
Year, Model & Trim Level
'97 XLT
I'm surprised the Super Duty cooler fits on an Explorer. I installed one on my Expedition and it was tight.
 




CDW6212R

Hauls the mail.
Elite Explorer
Joined
June 17, 2004
Messages
20,621
Reaction score
1,645
City, State
Knoxville, TN
Year, Model & Trim Level
98 Limited AWD
I'm surprised the Super Duty cooler fits on an Explorer. I installed one on my Expedition and it was tight.

There are multiple versions from various models. I didn't know about the long wide versions, until after I had bought two of the other sizes. Mine are close to the width of a radiator, but taller than most coolers. Those cannot fit behind the center support, but the very wide version can go in front, and lower as needed.
 




BUXTER

Elite Explorer
Joined
January 13, 2019
Messages
118
Reaction score
30
City, State
SUMMERVILLE
Year, Model & Trim Level
2001 MERC MOUNTY 5.0 AWD
2 ea 4inch Spals for $10 a piece & a $20 Cooler on ebay is what I did - Pass Side Cooler was Stock of course - Fans only kick on when AC compressor kicks on to help my Electric Rad Fan setup - Powered via 40 Amp 4 Pin relay triggered by AC Clutch Power.

TRANS COOLERS.jpg


TRANS COOLER JUMPER.jpg


TRANS COOLER FANS.jpg
 




Spudhut

US Navy Submariner
Joined
August 14, 2017
Messages
675
Reaction score
225
Location
NW Arkansas
City, State
Bentonville, AR
Year, Model & Trim Level
1997 Explorer Sport - 4x4
Callsign
KG5SPB
For Economy reasons - Im running 2 stock coolers - I swapped the bracket over and used 'nutserts' to mount to core support. Ill get larger cooler in the future.



Nutstert locations - (arrows)


Build Info: 1997 Ford Explorer - V8 - 5.0 - AWD
 




BUXTER

Elite Explorer
Joined
January 13, 2019
Messages
118
Reaction score
30
City, State
SUMMERVILLE
Year, Model & Trim Level
2001 MERC MOUNTY 5.0 AWD
Spudhut IMO that's a perfectly good "forever" setup u have in place now.
 




traveler

Staff member
Moderator
Elite Explorer
Joined
March 14, 2005
Messages
1,182
Reaction score
317
Location
Mesa AZ
City, State
Mesa
Year, Model & Trim Level
2000 EB Explorer 5.0
I've often thought of going with a system similar to that. I've already got one cooler that is similar in size to the factory cooler only thicker (X2), if I can find a second one like it I'll go that way. Up high out of the way, easy to mount a fan to each of them, lots of airflow, and more room for aftermarket bumpers, hitches, hooks, winches, etc.
 




Spudhut

US Navy Submariner
Joined
August 14, 2017
Messages
675
Reaction score
225
Location
NW Arkansas
City, State
Bentonville, AR
Year, Model & Trim Level
1997 Explorer Sport - 4x4
Callsign
KG5SPB
Spudhut IMO that's a perfectly good "forever" setup u have in place now.

Thank you! - the only 'cut' modification that has to be done is making a notch to clear added cooler
 




Top