M5OD TRANS COOLER?
Post Fiend
Joined: Oct 2003
Posts: 9,176
Likes: 4
From: Western Central NV
It would not effect the installed pump if you put it in as a completely independent system. If you pull the hot fluid to through the drain plug hole, run it through the cooler and the then return it through the fill, you would just need to add sufficient fluid to fill the cooler pump and lines so you do not run the installed trans pump low. You would not be using the installed pump to pump fluid to the cooler, nor would you be using the aux cooling pump to pump fluid to the gears in the transmission.
Matt
Matt
That will work. But I'm pretty sure these trannys use a pump to get oil throughout the trans. I maybe wrong but that is stuck in my pea brain.
But, as stated there are other ways to cool the trans IF NEEDED. I live in the Mohave Desert @ 800 ft. We get temps over 120 & my F150 seems to not have any issues with over heating the trans or T/C. But the floor does get hot as hell but it does on all my junk. My 99 Dodge 2500 4x4 V10 with a 4500 5 speed gets hot too. Hell my Honda is so close to the ground my butt gets hot just sitting in the seat. Down here you need seat coolers.
The trans we are talking about is a manual 5 speed with no pan.
Craig
Elder User
Joined: Jun 2012
Posts: 757
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From: 7th realm of hell, Va.
I personally do not think it is needed. Your rear diff takes a lot more abuse with less fluid in it and they hold up with probably the most maintenance neglect. I was simply answering how the original poster can reach his end goal.
After thinking about the problem the real issue probably lies with his exhaust system, if he has cats one may be getting clogged or his 02 sensor is bad and he is leaning out causing excessive exhaust heat causing the hydraulic fluid in the slave cylinder or line to boil.
How many of us have experienced brake fade from drive a car like a race car?
If it were me I would get some thermal wrap available at any of the auto stores and wrap the hydraulic line to keep from getting heat soak from the exhaust.
These trucks have been running in far more harsh conditions for 20 plus years with pulling heavy loads with no problems
Matt
After thinking about the problem the real issue probably lies with his exhaust system, if he has cats one may be getting clogged or his 02 sensor is bad and he is leaning out causing excessive exhaust heat causing the hydraulic fluid in the slave cylinder or line to boil.
How many of us have experienced brake fade from drive a car like a race car?
If it were me I would get some thermal wrap available at any of the auto stores and wrap the hydraulic line to keep from getting heat soak from the exhaust.
These trucks have been running in far more harsh conditions for 20 plus years with pulling heavy loads with no problems
Matt
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
Originally Posted by kermmydog
I'm pretty sure these trannys use a pump to get oil throughout the trans.
If heat is a concern, use 4th gear which is a direct drive through the transmission. This takes away the load through the gear mesh, which is a big source of the heat.
Thread Starter
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Senior User
Joined: Oct 2010
Posts: 150
Likes: 1
From: Charleston SC
I have convinced myself the problem was just due to excessive heat. The truck is not aerodynamic at all. Removing the stupid fender flares and mud flaps that HI mandated I installed on the truck. Now hopefully the drive train will have to work a little less to get up to highway speeds.
Clutch master and slave cylinder have been replaced about a year ago when I replaced the clutch itself. Have never had a problem like this, and it hasn't happened since. Of course I am not driving 80 mph for hours at a time in 105 degree weather now either.
Drained the T case and tranny today, T-case was right at 2 quarts, while tranny was low at about 4 quarts. Will refill them both as soon as I get a new washer for the trans drain plug. And finish giving him a comprehensive tune up. Will let everyone know how it comes out if anyone's interested.
Clutch master and slave cylinder have been replaced about a year ago when I replaced the clutch itself. Have never had a problem like this, and it hasn't happened since. Of course I am not driving 80 mph for hours at a time in 105 degree weather now either.
Drained the T case and tranny today, T-case was right at 2 quarts, while tranny was low at about 4 quarts. Will refill them both as soon as I get a new washer for the trans drain plug. And finish giving him a comprehensive tune up. Will let everyone know how it comes out if anyone's interested.
Post Fiend
Joined: Oct 2003
Posts: 9,176
Likes: 4
From: Western Central NV
Sounds good, Add a few ounces of Lucas trans stop leak to them both. It will give you a little better protection without thickening up the oil too much. I'm told by some drag racers that Z-Max works real good also.
Eric,
Thanks for straightening out my mixed up brain. The BW1356 has a pump I know for sure because I have seen one apart.
Craig
Eric,
Thanks for straightening out my mixed up brain. The BW1356 has a pump I know for sure because I have seen one apart.
Craig
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