D, 2, 1 - Gear Selection Power Differences
D, 2, 1 - Gear Selection Power Differences
When driving my new Screw, I noticed that if I shift down to "1" while stopped at a light, when I take off there is significantly less power than if I simply use "D". In fact, if I'm in "1" and I leave a light with medium throttle (not floored), and I shift quickly up to "D" without moving the throttle, I get a serious jolt of added power. Anyone know what this is all about? Shouldn't "1" have just as much power off the line as "D" with the exception that "1" wil hold the gear longer? Does this have something to do with the "drive by wire" throttle or am I missing something? Also, I realize that starting out in "2" should have less power than "1" or "D", but that not the issue hear. Thanks for any replies.
Thats a pretty good question. I havent tried taking off in first, but I have noticed that if my OD is off, my take off seems to suck. My wife once had a Mitsubishi Galant, and with the OD off the lil bas-terd took off like a rocket.
Why doesnt my truck?
Why doesnt my truck?
I noticed the same thing - in 1st (not OD thing)
it *may* have something to do with Ford smoothing out the low end torque with the computer so it isn't so jumpy off road (you wouldn't happen to only notice this with 4X4 would you - mine is a 4x4)
i love it off road - to drop into 1st and smooth as glass - kind of a bummer on road if i expect it to help me push the beast a bit quicker off the line
it *may* have something to do with Ford smoothing out the low end torque with the computer so it isn't so jumpy off road (you wouldn't happen to only notice this with 4X4 would you - mine is a 4x4)
i love it off road - to drop into 1st and smooth as glass - kind of a bummer on road if i expect it to help me push the beast a bit quicker off the line
When your out driving. Pull the stick bact to "1". Leave a light with medium throttle and then quickly shift to "D". It's almost amusing. Something ain't right.
I have not messed with the OD button yet other than I pushed it on the highway and watched the R's come up.
I'm trying to figure out this DBW throttle thing too. I can't figure out if I need the hesitation thing addressed by my dealer or not. I think she's a tad too smooth for my liking.
I did notice that at 45MPHj or so, if you coast for a second and then stab and release the pedal to the floor quickly, nothing happens, you just keep on coasting.
BTW, my truck is a 4X4.
I have not messed with the OD button yet other than I pushed it on the highway and watched the R's come up.
I'm trying to figure out this DBW throttle thing too. I can't figure out if I need the hesitation thing addressed by my dealer or not. I think she's a tad too smooth for my liking.
I did notice that at 45MPHj or so, if you coast for a second and then stab and release the pedal to the floor quickly, nothing happens, you just keep on coasting.
BTW, my truck is a 4X4.
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Ranman,
I just took my truck in Monday for the same reason. They reflashed the PCM with "the latest version," but I don't notice any difference in throttle performance. There is no TSB out on this issue yet. There is no TSB out for throttle delay on the NHTSA web site:
http://www-odi.nhtsa.dot.gov/cars/pr.../tsbsearch.cfm
They did say that were no error codes in the computer to indicate a malfunction of any type, and the truck seemed to have the same response as other F150's on the lot.
This is a bit disconcerting, since there is definitely a delay in throttle response and they don't seem to think it's a problem.
I just took my truck in Monday for the same reason. They reflashed the PCM with "the latest version," but I don't notice any difference in throttle performance. There is no TSB out on this issue yet. There is no TSB out for throttle delay on the NHTSA web site:
http://www-odi.nhtsa.dot.gov/cars/pr.../tsbsearch.cfm
They did say that were no error codes in the computer to indicate a malfunction of any type, and the truck seemed to have the same response as other F150's on the lot.
This is a bit disconcerting, since there is definitely a delay in throttle response and they don't seem to think it's a problem.


