Why does my Expy go into 4WD when I go into Sport Mode? I obviously want it to stay in 2WD when going into sport. Unless it’s doing some sick AWD thing. That’s be cool. I shouldn’t have to switch it back to 2WD when going into Sport. I mean I get that it crosses over some other options that require 4WD but it should know better. Thanks!
Sport mode engages 4wd-auto to help avoid and prevent wheel spin.
In my truck I can light up the rear tires in sport, which is exactly the opposite thing you want to do.
You can choose to select 2wd, but there is no benefit, as the truck will distribute power automatically. at take-off it will transfer a portion to the front to avoid wheel spin, it always remains biased to the rear.
When you are in Auto 4wd you are only still only using the rear 2 wheels.. when a rear wheel starts to loose traction the front wheels will engage automatically thus the "auto" 4wd. If im not mistaken..?
The system is smart enough to transfer power before it loses traction in sport mode (and other modes). It biases the power distribution to the rear but will send power simultaneously to front and rear at throttle tip-in. it will be more aggressive with power transfer if traction is lost.
