Beware..you can go into reverse at highway speed
Beware..you can go into reverse at highway speed
How do i know? Doing 90 kmh on the highway I was messing about hypermiling and tried to put it into neutral. Instead I put it into reverse. Only for a second or so but the rear wheels locked up. Luckily nobody following close behind me! I didn't think this was possible...didn't mythbusters bust that? Guess they weren't driving a delica. At least now I know if I have total brake fade as a last resort I can bang it into reverse. Transmission seems none the worse for wear. Don't try this at home!
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Re: Beware..you can go into reverse at highway speed
Wow, I did the same thing last summer. Had 3 other people in the car and they were all sleeping. My heart came out of my ass at that point. While everyone else was screaming in the car. I was waiting for transmission failure or something along those lines. So far so good. I try and forget that moment in my life. But it happened and I will always admit to it. Ha
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Re: Beware..you can go into reverse at highway speed
I did that in my old Chevy 4x4 years ago, thought I blew the th400 up, turned out I blew out 4 of the same sides of my front u-joints(rear driveshaft) cups. A heck of a vibration. Have a look at both universals just to make sure.
Brad.
Brad.
- nxski
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Re: Beware..you can go into reverse at highway speed
I've done the same, but managed to slam it back to drive before it engaged. The trick is to not press the button on the side of the shifter when going into neutral, it's not necessary.
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Nicola Spurling
Had: 1991 Mitsubishi Delica L300 SuperExceed, heavily modified (totalled by a drunk driver)
Have: 2011 Acura CSX manual, lightly modified
Want: Mitsubishi Pajero Evo
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Nicola Spurling
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Re: Beware..you can go into reverse at highway speed
http://www.mdocuk.co.uk/forums/viewtopic.php?t=42009 errr been there done that! cant remember if it was the tyres squealing or the rush of air in through my open mouth and out the other end that was louder?
Re: Beware..you can go into reverse at highway speed
On the L400 there is no button. The trick is not to pull back on the shift lever when changing into neutral. Or just dont change into neutral at highway speed! On when going at all....nxski wrote:I've done the same, but managed to slam it back to drive before it engaged. The trick is to not press the button on the side of the shifter when going into neutral, it's not necessary.
- mararmeisto
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Re: Beware..you can go into reverse at highway speed
Hyper-miling at highway speed is pretty much a moot point - you're not going to save that many RPM and maintain speed. Just take your foot off the pedal periodically and that will achieve the same effect. Sprint and drift, sprint and drift. And it'll be safer.
It's generally only newer vehicles that have electronic shifting which will prevent the transmission from shifting into reverse over a certain speed moving forward. Older, mechanically-shifted transmissions - no protection.
Shifting into neutral on a down-slope however will save you fuel as it will prevent the transmission/engine from braking the vehicle, wasting fuel. Of course, it's a tricky balance to not let the engine do the braking and then burning out your brakes from overuse (which is why the transmission/engine is used for braking in the first place).
It's generally only newer vehicles that have electronic shifting which will prevent the transmission from shifting into reverse over a certain speed moving forward. Older, mechanically-shifted transmissions - no protection.
Shifting into neutral on a down-slope however will save you fuel as it will prevent the transmission/engine from braking the vehicle, wasting fuel. Of course, it's a tricky balance to not let the engine do the braking and then burning out your brakes from overuse (which is why the transmission/engine is used for braking in the first place).
JPL
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- Mr. Flibble
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Re: Beware..you can go into reverse at highway speed
I did this coming down from Apex once; instantly stalled the engine. Did not lock up wheels though.
Canadian living in Washington USA
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Re: Beware..you can go into reverse at highway speed
Coasting in neutral is dangerous and does not save on fuel economy. Bad idea all around.
http://www.popularmechanics.com/cars/al ... el-economy
http://www.popularmechanics.com/cars/al ... el-economy
- Mr. Flibble
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Re: Beware..you can go into reverse at highway speed
It is not coasting, it is Mexican Overdrive!Dingus wrote:Coasting in neutral is dangerous and does not save on fuel economy. Bad idea all around.
http://www.popularmechanics.com/cars/al ... el-economy
Coming down from Apex to Penticton, it is a common and fun thing to try to coast all the way into town. (Not from the very top, but a little after the T intersection with the sled hill).
If you put your car in gear, there is one hill you won't clear due to engine braking. You need to be in N to clear it. Otherwise, you have to hop on the gas. And what fun is that?
Edit: to be clear, the Popmech article is correct for electronically fuel injected engines. Mechanical pumps still inject fuel I believe, which is what the series 1 L400s are.
Canadian living in Washington USA