I have a 02 F350 that seems to get really hot really fast. When it is empty it usually sits at about 800 degrees (EGT) and between 120-180 (tranny) at 75 mph. However going up steep inclines (6-7% grades) puts the truck closer to 1000 EGT and 190 tranny, especially when climbing for long distances. If I put any weight behind the truck it gets there much faster. While towing a Nissan sentra on a tandem axle open car trailer between San Diego and Vegas there is a section of I-15 that has roughly a 5% grade you have to climb. I ended up getting to 1100 degrees EGT and 200 tranny. At first I assumed it was the ambient temp (90 degrees) but I encountered the same issue later on in single didgit temps going through the Colorado Rockies. I know DP tuners run a little hot but this happens when I'm in stock mode as well. I ended up having to slow to 50 mph both times to keep it at 1100 degrees. Is there any way I can lower my temps while towing without breaking the bank?


Truck has AFE cold air intake, BD turbo, MBRP 4" exhaust and a DP tuner with econo and performance tune. I also have bypass oil filtration and an auxiliary tranny cooler installed running schaffers 9000 oil.

 

I would check for a boost leak

 

This is probably a dumb question but I'll ask anyway. Is there any special tool I need to test for a boost leak or is it as simple as putting my hand near the pipes and feel for air?

 

Your going to need to pressurize the system otherwise you can't find it. You can make a piece you can clamp into the inlet of the turbo and hook an air line up to it. I wouldn't use more then about 30psi though