Tow/Haul button: what is it for?
Hi all, very noob question. Just purchased my second RV., 2012 24' Class C on E350. The tow/haul button automatically comes on when started. Sales person said to just turn it off. What is it used...
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I don't doubt that the tune has made your (Awilson's) motorhome more civilized and nicer to drive. However, I think Brazel's was rather off base in their comments.
The version of the V10 used in the E series is quite different from that used in pickups (and in the F53 chassis); it has the older two-valve heads, while the other vehicles use 3-valve heads and produce significantly more power. (The E series chassis doesn't use the three valve head version due to space constraints, as I understand it; I guess the larger heads just plain don't fit in the chassis.)
It may be that the transmission is tuned for a "average" use of the E series chassis, which gets built into all sorts of vehicles: shuttle busses, box trucks, ambulances, and of course until rather recently plain old vans. The van bodies would generally be less loaded and have a good bit less air resistance than a motorhome.
Have you measured and verified the 50 HP difference? That seems like a rather large gain for only software changes, and would seem to me to imply the need for e.g. cooling system improvements.
The version of the V10 used in the E series is quite different from that used in pickups (and in the F53 chassis); it has the older two-valve heads, while the other vehicles use 3-valve heads and produce significantly more power. (The E series chassis doesn't use the three valve head version due to space constraints, as I understand it; I guess the larger heads just plain don't fit in the chassis.)
It may be that the transmission is tuned for a "average" use of the E series chassis, which gets built into all sorts of vehicles: shuttle busses, box trucks, ambulances, and of course until rather recently plain old vans. The van bodies would generally be less loaded and have a good bit less air resistance than a motorhome.
Have you measured and verified the 50 HP difference? That seems like a rather large gain for only software changes, and would seem to me to imply the need for e.g. cooling system improvements.
