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Old 07-24-2014, 08:55 PM   #11
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Engaging the "tow/haul" button locks out the high overdrive gear to stop the transmission from overheating. Just sayin!!!!!
Don't know how it might lock out OD. I've towed with my Silverado with the tow/haul button on and off. No difference that I can see.
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Old 07-24-2014, 09:20 PM   #12
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Interesting how Ram pickups ( probably the other makes also) have a "tow/haul" button on the dash. This button, according to the owner's manual, is to be engaged when towing a trailer or hauling a load. Engaging the "tow/haul" button locks out the high overdrive gear to stop the transmission from overheating. Just sayin!!!!!
In my Ford, the tow/haul mode does not disable the O/D. What it does, is it holds the gears longer or to a higher rpm. It also enables engine braking. If I'm going down hill and I hit the brake, the engine will down shift and slow the truck with little or no brakes.
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Old 07-24-2014, 09:22 PM   #13
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I have a 2009 Titan that I tow with, I use the tow mode, and shift into 4th gear, as per the manual. I've pulled some good hills and never had a problem. Hope this helps you out,
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Old 09-03-2014, 12:28 AM   #14
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Well. My first post tells of a 06 pathfinder that I had purchased. Turns out I have a problem that no one seems to be able to figure out. There is a loud engine noise when accelerating at 2500-3000rpms and losses power up hill especially towing (2800lbs). Some mechanics seen to think cat convertor clog but there is no CEL. Any ideas?

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Old 09-03-2014, 09:37 AM   #15
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Well I have a 2010 xterra. Should be same engine tranny combo if yours in an automatic. I tow roughly 4500 lbs through west virginia mountains. Which gear..... it depends..... what speed? What incline? I drive fast and usually 3rd gear up hills/mountains but occasionally it changes to 2nd on some large hills that it can't maintain highway speeds. All in all 2800 lbs for that isn't a lot so you shouldn't need to worry about gears. You should worry about that noise. Just cause a CEL isn't on doesn't mean there isn't a problem. A cat can come apart and close 50% of the exhaust and still get in the range of good readings. Go under and pound on the exhaust with your fist. See if you can hear anything rustle inside the exhaust or cat.
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Old 09-04-2014, 09:19 AM   #16
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Until recently, I had the same TV (2006 Nissan Pathfinder V6 4x4 S). I towed with the OD off. Uphill, 3rd was common, even 2nd gear. I live in CO, so it's always up or down. While towing, I manually shifted through the gears, lots.

I'm not sure what your recent power loss problem is.
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Old 05-26-2015, 11:21 PM   #17
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Found out it was a busted catalytic converter.
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Old 05-26-2015, 11:52 PM   #18
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Quote:
Originally Posted by RSchleder View Post
Interesting how Ram pickups ( probably the other makes also) have a "tow/haul" button on the dash. This button, according to the owner's manual, is to be engaged when towing a trailer or hauling a load. Engaging the "tow/haul" button locks out the high overdrive gear to stop the transmission from overheating. Just sayin!!!!!
Correction to RSchleder's comment: tow/haul on my '09 Ram 2500
Cummins doesn't lock out any gear. It delays she shift pattern under load or hard acceleration. Overheating? I've towed trailers up to around 11,000 lbs., and have crossed the Rockies several times with no temperature problems. I'm not a big fan of Ram trucks; not sure if I'd buy another one, but RSchleder's comments are incorrect, at least in my case.
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Old 05-27-2015, 08:33 AM   #19
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My $.02....Tow/Haul mode.....If you have it....It changes the programing of the RPM vs shift points in the transmission, On our Jetta the same principal is called Sports mode.....
If you just have an OD button, then all it does is lock it out of OD....Read your manual for towing info.....
And if you have an older Chevy truck....you WILL burn up your clutches towing in OD
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Old 05-27-2015, 11:42 AM   #20
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Always tow in 4th gear, I get better gas mileage and the trans shifts less. I dont think there is a problem with towing in OD. The problem is if the load is heavy enough or the grade steep enough, the trans ends up switching gears a lot adding additional wear and heat to the trans.
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