Just read Tom's post about the problems he had with his Tow/Haul setting on his Ford. I too own a Ford (F-250 SD) but have never used my Tow/Haul pulling my Cruiser or my 12' Utility trailer. Should I be using Tow/Haul?
I use T/H when in heavy stop and go driving or when going up and down hills. If I am on a fairly flat hiway then I stay in Drive. It might also depend on the TV. If the trans and engine are working hard in drive, then T/H would be better.
All the new tow haul systems do is to change the shift points by electronics It will keep you in certain gears longer. If you have a power stroke, or Duramax with high torque curves, Than I would use the tow haul. It will keep you in the torque range longer
Edited by: fhenn
Frank and Janet Henn
2000 Monoco Lapalma
being pushed by a 2004 Jeep Grand Cherokee
Traveling with Rainbow the wonder dog and now with Sunshine the rescue Schnauzer.
I can tell a difference when I forget to put it in T/H.Seems sluggest to me.I haven't tried,but the down shift might only work in T/H.But like rhenn said,it just holds the gear longer so as not to shift in and out so much when pulling.It still has overdrive as before.
One other thing it does for my truck while empty is lower the trans temp 5* to 7* in T/H as opposed to not. I have seen no difference in mileage with or without T/H while empty so I just run it all the time. I prefer firmer shifts with T/H.
17 Chevy 3500 DRW 4X4
16 Mobile Suites 36RSSB4
2 Mini Dachshunds
I always use tow/haul mode when I'm pulling our CF30SK. As previously mentioned, T/H widens the shift points but it also tightens up the shifts. This prevents the clutches from overheating, causing premature wear to them. T/H was put into the transmissions computer program to protect the transmission when hauling or towing.
__________________ Cheers Helen & George VE3INB and Max (Bichon Frise) 2006 Silverado 2500HD D/A, 2006 Cruiser CF30SK
I use tow haul all the time I am towing the camper. It goes into OD a little later than without it but it keeps it from shifting in and out. It also helps with downshifting and saving the brakes. Tow haul will also learn over time your driving habits. I know there was a post some time back that a member had problems with tow haul but finely the dealer cleared the memory and had no more troubles.
George and Debi
2006 F250 PSD, 2005 PF30CK
I have a 07.5 Silverado with the 6.6 Duramax/6 Spd Allison. Although the truck easily pulls my 08 32SB - I use the tow/haulmode when I am on backroads, or in slower traffic in hilly terrain. I noticed only a slight decrease in mileage. Lots of posts on this - it really will depend on your preference.
Roselyn and Darrell
2007.5 Silverado LT/EFI Live Tuned Duramax/6Spd Allison/Banks Ram Air with Super Scoop/Edge CTS Gauges/Air Lift Load Lifter 5000 Ultimate Air Springs
2014 335ss Cruiser Provincial