Biggest Complaint
Specifically, when you get to highway speeds (55+) the truck takes a lot of throttle, well over 1/3 of the pedal, before anything starts happening. It never really builds boost, so then you give it a little more gas, and the truck downgears and takes off like a rocket.
I'd love to know if they've updated the software - my truck was built way back in December of '16.
It's just maddening. I'll likely take a long look at the chevy when it comes out this fall. Sorry I know people won't like that, but it is what it is.
All modern vehicles use electronic throttles...no cable drive. The manufacturer sets the programming. "Sporty" vehicles have lots of early throttle tip in which makes them feel really quick off the line, but then they don't have as much to give later in the throttle travel. Vehicles like "trucks" tend to have late throttle tip in. They aren't meant to be "fast" and they hold gears longer in an effort to save fuel.
Now, the F-150 and Raptor have a "Sport" mode which can be turned on...this front-loads the throttle and makes downshifts quicker...giving that sporty feeling some people love but at the expense of fuel economy.
The Pedal commander is in-line. It takes the factory throttle signal from the pedal and amplifies it before sending it down the factory harness. It makes the engine think the throttle is being pressed harder than it is. In reality, you can do the same thing pedal commander does just by being hard on the throttle.
Using what you have, one can always manually shift, or you can try Tow/Haul mode when you aren't towing. That mode allows quicker downshifts.
I've not driven the new L5P Duramax. The Cummins, however, seems to have the worst throttle response unless you buy the manual.







