4A is great up to a certain point. It works when it detects wheel slip which by nature incurs a slight delay detecting and engaging the clutch. Its great when conditions change from dry to slick and back and forth. But in a full slippery conditions where wheel slip is 100% certain 4H shines as all wheels are driving and there wont be the rear sliding out before the front kicks in. I also presume this will make the diff clutch last longer since its 100% locked in.
A Friendly Reminder on Drive Modes for 4WD
- Thread starter Expedition Dave
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
this guy did a great job testing the various drive modes
youtu.be
2020 Ford Expedition Offroad
Finally got a chance to take the Expedition offroad, and I was quite impressed!Engine Adventures strives to explore and test the AWD and 4WD systems of all c...
youtu.be
jayliu
Member
Do you air down when you use this mode? thanks
shane_th_ee
Full Access Members
I have not needed to (yet). Now, I can’t say I was bashing through deep dunes as the beaches I’ve been on have been pretty firm.
KSC 2019 XLT
Well-Known Member
The Mud/Rut mode drives in 4H even though the dash says 4A. There is a notation that says this in the owners manual.
Similar threads
Latest posts
-
-
-
-
-
2019 Ford Expedition Max Limited Overall Reliability and Quirks- Latest: Going_Going_Gone