So, I've been pondering upgrading my old Sportsmobile to a new E-Series van - maybe U-Joint 4x4 conversion or something, but using a cutaway E-Series box van this time.
However I'm reading how all Ford's vans these days include "RSC" - Roll Stability Control / "AdvanceTrac" / whatever. My current 2004 Ford E-350 Sportsmobile doesn't have RSC, and it seems to me that's a good thing. I'm a big fan of having all the manual control.
Still, I don't really mind the idea of the van computer deciding to occasionally add some left or right braking for me when things get squirrely, but I am very averse to the idea that the computer might cut engine power
whenever it feels like it! I have a 2006 Prius which does that, and ugh it sucks.... I read that the RSC works by comparing the steering wheel angle with the individual wheel speeds (from the ABS tone rings) and if an unexpected mismatch is detected then the computer will apply brakes on one side and cut the engine power.
I'm most afraid of low-traction situations where I've got some good momentum going, but if the engine cuts out then I'm stuck.
For example, I periodically find myself alone on some remote Baja beach where the sand is coarse and dry. The beach slopes steeply down towards the surf. Even aired down, forward driving creeps me closer and closer downhill to the water - unless I build up some speed purposely driving downhill for a bit before turning wheel and powersliding my way back up the sandy slope to safety. Can't do this if the engine cuts power on me!
Or, I'm on some remote dry lakebed - that turns out to not be so dry after all. I gently turn the wheel back towards "shore", and the van starts fishtailing in the exposed mud. But I keep going using momentum to get back to a dry zone. If the computer cuts power, I'm stuck!
I do understand that Ford vans include an RSC-disable button. Is this enough? I just have to remember to hit the button before any unexpected offroad mishap? I read Ford automatically re-engages RSC when the vehicle reaches 20MPH. How does this work when in low range? On my van, the speedo reads 4x too high when in 4-low - so would the RSC re-engage at 20÷4 MPH? Or does RSC only use the wheel tone rings to determine speed? Are there engine "tunes" to disable RSC?
I've done my best reading up on RSC here on the Forum (and special thanks to carringb
for his expertise) but I still have questions….
I'm wondering if you all might be able to help me out by sharing your experiences driving offroad with RSC?
(And yeah maybe I just need to take a U-Haul rental out to a gravel pit and do some donuts