You should be in tow haul mode and stop driving it like a race car. Racing to the next curve. Your heavy drive like it. On really steep hills put it into manual mode to hold a gear. My scientific wild ass guess is you should be in 3rd or 4th gear up the hills. Not hamering the throttle though. Hope this helps. Old school mechanic and truck driver with 40 years experience
I don't think the truck was hunting because he was doing anything wrong. My experience with those Auto 10-speed is under full load they will typically walk around from gear to gear. Especially at lower speed in steep grades.
Do you think the type of transmission fluid, engine oil, and coolant fluids could help? I believe not all fluids are created equal. Try replacing all the fluids with a 100% synthetic, do the tow test, then do a fluid analysis (before and after). Or, change the fluids more frequently since you're not going to escape the heat when towing like that. Just a thought.
I gotta say, I LOVE all the info and gauges! Do you do an obd2 reader? What are you using? I've got an 06 frontier that I tow a 28ft Keystone with and would LOVE to have all that info
Thanks for mentioning the outside air temp. How much does you loaded trailer weigh? As a mechanic (retired) I don't think that transmission is going to live based on what I am seeing here. The hunting gears and those temps are going to kill it. My Chevrolet 3500HD Diesel's 10 speed behaves completely different We live in the Sierra Mountains and travel in the Rockys frequently. I never see temps like that even when pulling our 12,000 pound fifth wheel RV. The trans temp on mine is usually 147 F on flat while towing with up to 100 degrees outside temp. The highest I have seen it while towing heavy on a long steep grade is 210 degrees. Thanks for the video, please keep us updated.
I'm at 15,000 combined. GM's recommended limit. TFL had a similar issue on this same exact test. GM (as far as i can tell) simply removed the warning message. there is a known issue among owners with torque converters on the 10 speed. gm changed the tuning (i had teh latest update) which has lead to much more open converter time. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-8OX98vv7jmA.html
@@duramaxadventures5832 how u like the 3.0 ? U can can last long time 15 years or 150k miles ? I don’t towing … I keep my truck for long time but I never owned diesel and the emissions Def scary me if something fail
12:48 Why do you wait to put it into 4wd auto? I always keep my truck in 4wd auto even on dry pavement, or while towing. It defeats the purposes to wait until you have slip to use that feature
4wd auto can break CV's if you get axle hop. i run 2wd until awd is needed to prevent surprises. auto also decreases fuel economy, and can lead to axle bind on dry pavement in tight turns if the accelerator is applied.
Do not leave your vehicle in auto 4wd. It is the owners manual it says to not use auto on dry pavement. As a technician I have seen people who do it and they get a front axle repair bill.
