Trans cooler overkill?
03-08-2015, 10:00 AM
#1
JK Enthusiast
Thread Starter
Join Date: May 2014
Location: West Point, Utah
Posts: 267
Likes: 0
Received 0 Likes
on
0 Posts
Trans cooler overkill?
I am hoping to get a few quick replies so I can get this done today long story short I have a tru cool 4590 aluminum stacked plate aftermarket trans cooler that I bought years ago for my Silverado that I never used and I am wanting to put a cooler in the jk can I use this one what are the possible problems I may have using this beast instead of the smaller b+m one that everyone uses this one like I said is the same design as the b+m 70268 but this one is bigger and thicker it appears to fit in the grill just fine I am just needing to know if it may cause problems with the trans or the radiator etc please tell me what you think
my jeep is an 08 JKUR with auto trans 37" tires and 5.13 gears 72000 miles (no warranty) I do a fair amount of wheeling in moab usually during the cooler months and it is my daily driver so it often sees the freeway but not every day I live in Northern Utah where temps range from 0-105 Fahrenheit
any answers as soon as possible would be greatly appreciated as I am hoping to do this today
my jeep is an 08 JKUR with auto trans 37" tires and 5.13 gears 72000 miles (no warranty) I do a fair amount of wheeling in moab usually during the cooler months and it is my daily driver so it often sees the freeway but not every day I live in Northern Utah where temps range from 0-105 Fahrenheit
any answers as soon as possible would be greatly appreciated as I am hoping to do this today
03-08-2015, 10:17 AM
#2
JK Jedi Master
If you are worried about over-cooling the transmission, it won't happen.
I have a regular sized aux cooler in front of the radiator, with a fan on the engine pulling air through it all the time. The transmission runs in the 90°F to 130°F range whether it's -30°F or 105°F outside.
If your cooler is big enough to cover the radiator, you may have engine cooling problems and/or air conditioning performance problems. (I doubt it, though.)
All you can do is install it and see what happens.
I have a regular sized aux cooler in front of the radiator, with a fan on the engine pulling air through it all the time. The transmission runs in the 90°F to 130°F range whether it's -30°F or 105°F outside.
If your cooler is big enough to cover the radiator, you may have engine cooling problems and/or air conditioning performance problems. (I doubt it, though.)
All you can do is install it and see what happens.
03-08-2015, 10:21 AM
#4
JK Enthusiast
Thread Starter
Join Date: May 2014
Location: West Point, Utah
Posts: 267
Likes: 0
Received 0 Likes
on
0 Posts
If you are worried about over-cooling the transmission, it won't happen.
I have a regular sized aux cooler in front of the radiator, with a fan on the engine pulling air through it all the time. The transmission runs in the 90°F to 130°F range whether it's -30°F or 105°F outside.
If your cooler is big enough to cover the radiator, you may have engine cooling problems and/or air conditioning performance problems. (I doubt it, though.)
All you can do is install it and see what happens.
I have a regular sized aux cooler in front of the radiator, with a fan on the engine pulling air through it all the time. The transmission runs in the 90°F to 130°F range whether it's -30°F or 105°F outside.
If your cooler is big enough to cover the radiator, you may have engine cooling problems and/or air conditioning performance problems. (I doubt it, though.)
All you can do is install it and see what happens.
03-08-2015, 10:29 AM
#5
JK Jedi Master
Sorry don't think my app is working I hadn't seen this when I posted the bump thank you for your quick response this won't cover the whole radiator but it is about half are there any concerns with the trans never reaching optimal temp supposed to be about 175 from what I have read?
Mine is what I consider super-cooled, and it has no problem getting to 80°F at the low temps I mentioned in the post above.
I went to the site for the cooler you have. It says it is self regulating according to fluid viscosity at various temperatures. I'm not sure how that will work with the 42RLE transmission. Will it bypass until it reaches some predetermined temp, like they state? If that's the case, and it forces your fluid temp to be that high, I would not use it. You want the temp to be as low as you can get it, above 80°F.
Last edited by ronjenx; 03-08-2015 at 10:34 AM.
03-08-2015, 10:46 AM
#6
JK Enthusiast
Thread Starter
Join Date: May 2014
Location: West Point, Utah
Posts: 267
Likes: 0
Received 0 Likes
on
0 Posts
Forget about any optimal temp figures you have seen. As long as the temp reaches 80°F, it will be fine, as that is where normal shift schedule commences. Your transmission and its ATF+4 fluid will be fine.
Mine is what I consider super-cooled, and it has no problem getting to 80°F at the low temps I mentioned in the post above.
I went to the site for the cooler you have. It says it is self regulating according to fluid viscosity at various temperatures. I'm not sure how that will work with the 42RLE transmission. Will it bypass until it reaches some predetermined temp, like they state? If that's the case, and it forces your fluid temp to be that high, I would not use it. You want the temp to be as low as you can get it, above 80°F.
Mine is what I consider super-cooled, and it has no problem getting to 80°F at the low temps I mentioned in the post above.
I went to the site for the cooler you have. It says it is self regulating according to fluid viscosity at various temperatures. I'm not sure how that will work with the 42RLE transmission. Will it bypass until it reaches some predetermined temp, like they state? If that's the case, and it forces your fluid temp to be that high, I would not use it. You want the temp to be as low as you can get it, above 80°F.