transmission cooler lines run through radiator?
#31
07-03-2010, 10:00 PM
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Final report on this:
I had the local radiator shop put in a new radiator with OTW cooling. It helped. In the past, climbing up the mountain mentioned, the temperature gauge would register 250 degrees, which is the max the gauge will register, so it could easily have been a fair bit higher. This trip, the temperature only went to 230 pulling the trailer (about 4000 lbs), and 210 with the pickup alone not pulling the trailer.
The road is a bit difficult I guess because it rises about 2000 ft. in altitude in about 3 miles (after rising about 1000 ft in the previous five miles of decent road). The road is very rough with lots of switch backs -- I think I averaged around 8-10 MPH during the 3 miles.
Anyway, a significant improvement over the last time I went. Thanks or all of the help.
I had the local radiator shop put in a new radiator with OTW cooling. It helped. In the past, climbing up the mountain mentioned, the temperature gauge would register 250 degrees, which is the max the gauge will register, so it could easily have been a fair bit higher. This trip, the temperature only went to 230 pulling the trailer (about 4000 lbs), and 210 with the pickup alone not pulling the trailer.
The road is a bit difficult I guess because it rises about 2000 ft. in altitude in about 3 miles (after rising about 1000 ft in the previous five miles of decent road). The road is very rough with lots of switch backs -- I think I averaged around 8-10 MPH during the 3 miles.
Anyway, a significant improvement over the last time I went. Thanks or all of the help.
Is your truck a 4x4?
If that was me and I was only doing 8-10 mph I would put my truck in low range and leave the hubs out ( I have manual hubs) and use the transfer case low range gears to keep the rpms up. Kinda like a poor mans splitter. I do that with my 5'er heading into the place we stay down at the dunes. That is about a 10% grade for a half mile. Nothing compared to what you are tugging your trailer up.
I also put my transfer case in low range to back up heavy trailers as well so its not quite so hard on the transmission. Right, wrong or indifferent thats how I do it.
Glad your heat issue taken care of. I had no idea the trans cooler in the radiator made that much difference at a slow speed. I learn something new everyday. Make sense though.
#32
07-04-2010, 07:31 AM
That's when it is at it's best. There is plenty of water in the radiator to remove the heat, and the engine fan will come on if the water temp gets high enough. The engine fan won't come on if the air to oil trans cooler gets hot.
#33
07-04-2010, 12:33 PM
Very interesting, I was wondering the same thing, thanks for clearing that up Mark..
#34
07-12-2010, 08:38 AM
Well I am going to report that since I added an external spin on filter on the return line between the 6.0 stand alone cooler and my trans, my tranny temps run about 10 degrees cooler. I used to run 175-180 now it runs at 160-165. Outside air temps were inthe high 80's and humid. It stayed there while pulling 10,000lb up an 8 mile grade with two switchbacks. I even tried to run the truck hard and but it does not heat up.
Your fan is going to be pulling air through the cooler all the time. (granted at a slower speed)
Your fan is going to be pulling air through the cooler all the time. (granted at a slower speed)
#35
07-12-2010, 03:22 PM
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