Question About Climbing a Steep Grade
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5th Wheeling
Joined: Oct 2016
Posts: 29
Likes: 2
Question About Climbing a Steep Grade
I drove our new F350 diesel home yesterday. We have a very steep grade to climb to get to our house, and the speed limit is 29 mph. By the time I reached the top I was practically flooring the accelerator pedal, the truck was going slower and slower and I wondered if the truck was going to stall. The truck finally downshifted and all was fine after that.
Would using the tow/haul mode help in this situation? Or drive it in manual?
(I realize I could just go out and try both, but I'd like to hear what you all have to say since you are so much more experienced than I.)
Thanks!
Would using the tow/haul mode help in this situation? Or drive it in manual?
(I realize I could just go out and try both, but I'd like to hear what you all have to say since you are so much more experienced than I.)
Thanks!
Elder User
Joined: Apr 2016
Posts: 812
Likes: 4
I drove our new F350 diesel home yesterday. We have a very steep grade to climb to get to our house, and the speed limit is 29 mph. By the time I reached the top I was practically flooring the accelerator pedal, the truck was going slower and slower and I wondered if the truck was going to stall. The truck finally downshifted and all was fine after that.
Would using the tow/haul mode help in this situation? Or drive it in manual?
(I realize I could just go out and try both, but I'd like to hear what you all have to say since you are so much more experienced than I.)
Thanks!
Would using the tow/haul mode help in this situation? Or drive it in manual?
(I realize I could just go out and try both, but I'd like to hear what you all have to say since you are so much more experienced than I.)
Thanks!
Postmaster
Joined: Jun 2014
Posts: 2,775
Likes: 7
From: Lewisberry, Penn
Hard to say with such limited info. How steep and long was the grade? How much weight total? What speed did it shift at? What does "practically flooring" mean?
My initial hunch is try "actually flooring" it, as that might kick it down sooner. Practically flooring sounds like when I tell my mom to hit the pedal on a Mustang I took over to her house and she revs her up to 3500 rpm.
My initial hunch is try "actually flooring" it, as that might kick it down sooner. Practically flooring sounds like when I tell my mom to hit the pedal on a Mustang I took over to her house and she revs her up to 3500 rpm.
Hotshot
Joined: Oct 2015
Posts: 19,694
Likes: 12,819
From: Wyoming
I drove up to my dad's house a week ago. It's a forest service road that has what I would estimate to be a 14% grade on the switchback section. I had no problems with power. I was in 4x2 mode in "D". I hit a nasty section of washboard that wasn't as steep and the suspension really didn't like it - and neither did my kidneys - but I don't recall losing power due to traction loss. I did not turn off the traction control.
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