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Dan ,
I recently installed a 26 row 6.0l cooler and replaced the by-pass tube at the same time time. My temps have dropped about 25-30 degreses on average pulling my 10,000 lb TT.
I installed a 26 row 6.0 cooler on my 7.3 and don't see anywhere those temps when I tow my 8,000 AirStream in the Texas Heat. Typically , it might hit 205 on a really ot day and a steep climb but most of the time it's about 190.
I'd check the flow rate as you may have a partial blockage somewhere .....
I installed a 26 row 6.0 cooler on my 7.3 and don't see anywhere those temps when I tow my 8,000 AirStream in the Texas Heat. Typically , it might hit 205 on a really ot day and a steep climb but most of the time it's about 190.
I'd check the flow rate as you may have a partial blockage somewhere .....
My thought is that 3 coolers though excessive is making things harder than they need to be....
As myself and others have done, get a 26-row 6.0 transcooler, drop it in, mod the lines and be done.
My trans stays remarkably cool during the hottest of Texas summers and really keeps the trans cooler when I tow.
I also noticed that you have a Banks tuner, I would highly recommend not towing in the higher settings as it's a great way to burn up your motor and trans. I would also highly recommend another chip aside from banks.
There are better chips out there that do a better job of tuning the engine and trans....
2001 7.3. 2 B&M coolers in-line with the Radiator cooler, I believe.
That might be too much restriction, which will cause the bypass to open. That will keep most of the fluid from going to the coolers.
You should run a flow test.
You need two containers, each about a gallon is fine.
Have a helper to start/stop the engine.
Remove the cooler line where it attaches to the rear of the transmission. Point the line into one of the containers. Have your helper start the engine. Once the flow is steady (just a few seconds) move the line to the second container for exactly 15 seconds then put the line back in the first container and shut the engine off.
If there is at least a quart in the second container it passes. If fluid comes spraying out of the transmission end it fails - the bypass is open. Now you would have to determine if it is a stuck bypass or a restricted cooler circuit. A little drip from the trans end is normal.