I have a PDF of every vehicle owners manual I have owned. I always read it before buying any new vehicle. I recommend finding yours through the "owners Manuals" link at Ford's site.
A & A parents of DD 2005, DS1 2007, DS2 2009 2011 Suburban 2500 6.0L 3.73 pulling 2011 Heartland North Trail 28BRS 2012 VW Passat TDI
Thanks everyone. Very good advice. I have read the manual but like to hear from those who actually use it. The questions I had were cleared up. Thank you again.
Gary
Jayco 2010 321RLMS 36feet with Monster Slide
Ford 2005 F350 6.0 PSD Dully w/turbo, 2000 7.4 Chevy Crew Cab,
5 grandchildren, 3 standard poodles, my best friend Maggie waiting at the rainbow bridge, a spoiled cat, and a good woman of 45 years.
If I am coming off a steep pass, like dead indian or beartooth, even without a trailer, I use tow/haul. I don't have to use the brakes and it won't up shift or freewheel. The only problem I have is the tourists behind me that don't understand why my brake lights aren't going on.
I don't use tow/haul mode on flat lands unless I get excessive downshifting due to headwinds. Otherwise, I use it. Since there are virtually no flat lands around here, I am usually always using the tow/haul mode.
APT wrote: I have a PDF of every vehicle owners manual I have owned. I always read it before buying any new vehicle. I recommend finding yours through the "owners Manuals" link at Ford's site.
I have a tendency to read the owners manual on anything I buy before I buy it (TV, washer, inverter/charger, air compressor, etc.). There have been times I was torn between two different products, and chose the one that had the owners manual posted on the manufacturers website.
downtheroad wrote: Use it full time when you are towing, especially for the size trailer you are towing. It will change the shift points in your transmission (among other things) and will keep your tranny cooler.
Hopefully Ford had a better idea with the 5r100 than the oil cooler bypass valve they used on the 4r100.
Pushing the OD button on the 4r100 to get better engine rpms will cause higher tranny temps because the bypass valve opens on higher fluid pressure. And as the name suggests when the bypass valve opens, a whole lot of fluid doesnt go to the cooler. Depending on the grade and load, it can mean 30 - 60 degrees higher in temp.
downtheroad wrote: Use it full time when you are towing, especially for the size trailer you are towing. It will change the shift points in your transmission (among other things) and will keep your tranny cooler.
Hopefully Ford had a better idea with the 5r100 than the oil cooler bypass valve they used on the 4r100.
Pushing the OD button on the 4r100 to get better engine rpms will cause higher tranny temps because the bypass valve opens on higher fluid pressure. And as the name suggests when the bypass valve opens, a whole lot of fluid doesnt go to the cooler. Depending on the grade and load, it can mean 30 - 60 degrees higher in temp.
My tranny temp towing all of last summer was very consistant (175-185) even one day going across KY at a temp of 105 (tranny hit 189 that day the highest ever for my truck). So it sounds like it changed. Also they removed the o/d off button. I'm not crazy about that but I have learned to live with it.
lowfly wrote: I have my first big truck but haven't used the Tow/Haul swith on the column yet. When do I use it, under what conditions, and what should I expect?
For some odd reason, I switch it on when towing. I figure it must do something.
lowfly wrote: I have my first big truck but haven't used the Tow/Haul swith on the column yet. When do I use it, under what conditions, and what should I expect?
For some odd reason, I switch it on when towing. I figure it must do something.
While I will admit to using it while towing, I have also been known to use it when offroad in 4 wheel drive. It allows you to drive downhill without using the brakes in certain conditions, resulting in better control.
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