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Winter Driving - are you prepared?

149 messages,  Last post on Aug 19, 2009 at 8:38 AM

You are in the Maintenance & Repair Forum. Your Host is mr_shiftright


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#130 of 149
Re: FWD engine braking [Mr_Shiftright] by wwest
Jan 02, 2009 (11:39 pm)
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Replying to: Mr_Shiftright (Jan 02, 2009 9:23 pm)

Apparently you have never had to stear into a skid as the car slides toward the edge of the road on Rodgers Pass. MT200.
 
Panic, yes, but knowing what to do beforehand often abates or at least lowers the panic level and thereby allows one to act rationally or at least moreso. When the stall warning goes off just as you depart the runway you can either panic, "freeze", and die or push the nose down just far enough to prevent a SUDDEN UNCONTROLLED return to the runway.
 
Education, knowing what to do, TRUMPS panic responses each and every time.
#131 of 149
Re: FWD engine braking [Mr_Shiftright] by wwest
Jan 02, 2009 (11:45 pm)
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Replying to: Mr_Shiftright (Jan 02, 2009 9:23 pm)

Are you disagreeing that the procedure would work or is it just that you believe most would panic, freeze, and never get to step 2...??
 
People are a lot less likely to panic if they recognize the situation as one for which that have some preparedness, plan.
#132 of 149
Re: FWD engine braking [wwest] by Mr_Shiftright HOST
Jan 03, 2009 (10:34 am)
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Replying to: wwest (Jan 02, 2009 11:45 pm)

Thanks for asking!
 
I'm saying that the procedure is both unrealistic for the average driver and no more effective than not putting it in neutral.
 
Having lived in New York and the mountains of Colorado and worked in the wilds of Alaska for a year, I've tried every damn procedure in the books for snow driving.
 
I do not claim to be the expert snow driver, but I have driven 40 years in the nastiest weather and never had a mishap, and most of it with RWD machinery or, in Alaska, 4WD trucks.
 
Anyway, that's my two cents. I don't think most American drivers should be told to put a car into neutral except to START IT and to TOW IT
 
They simply do not have the skill level for this sort of thing.
 
#133 of 149
Re: FWD engine braking [wwest] by steve_ HOST
Jan 03, 2009 (11:32 am)
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Replying to: wwest (Jan 02, 2009 8:48 pm)

With an automatic transaxle just how do you "ease" into a lower gear...??
 
For my ski hill, I just stick the tranny in the appropriate gear before starting out. Usually 3rd. If conditions warrant, I'll notice in the first quarter mile and be able to gently slow down so I can downshift the automatic to 2nd without kissing the snowbank.
#134 of 149
Re: FWD engine braking [steve_] by Mr_Shiftright HOST
Jan 03, 2009 (11:47 am)
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Replying to: steve_ (Jan 03, 2009 11:32 am)

I just find it rather unbelievable that some 65 year old guy (someone likely to be reading advice from AAA) starts skidding towards a tree or an embankment or another car....he does NOT instinctively turn the wheel, but just takes his foot off the gas and calmly shifts into neutral as the car heads for its target.....then, as he nears the target, he notices that his car seems to have more traction, and then he turns into the skid while simultaneously putting the car back into drive (not 1, not 2, not reverse, but Drive--presumably not looking at anything but the target).
 
Well good luck and god bless but I don't have the presence of mind to do that.
#135 of 149
down shift by oldharry
Jan 03, 2009 (8:09 pm)
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Well, I admit I have never downshifted a TOYOTA drive by wire on ice, but I have with a Cadillac, and the engined 'blipped' up a few rpm on throttle tap, then settled right back down. Engine braking FWD slows the front without locking the rear. GM had to recall some FWD's because the rear brakes were too aggressive, and rear wheel lock cause the car to swap ends on slippery roads.
 
A body shop guy told me, however, that he has a customer that rearended other cars twice with a new Nissan DBW because the driver in front started away from a stop light, then slowed, and the Nissan kept accelerating after he lifted his right foot.
 
Perhaps Mr. West is recommending not to buy a Japanese label FWD?
 
Harry
#136 of 149
Re: down shift [oldharry] by wwest
Jan 03, 2009 (11:01 pm)
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Replying to: oldharry (Jan 03, 2009 8:09 pm)

Before Cadillac decided to discontinue the FWD models entirely, along with the highly esteemed V8, most of them had already been revised to prevent engine compression braking on the front wheels. If I remember correctly they said they had adopted an "over-running" clutch within the transaxle so that the wheels could NOT "drive" the engine.
#137 of 149
Re: FWD engine braking [Mr_Shiftright] by wwest
Jan 03, 2009 (11:20 pm)
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Replying to: Mr_Shiftright (Jan 03, 2009 11:47 am)

First, the only "FWD" you will find me out in adverse conditions with is an '01 F/AWD RX300. All year around there is ONE set of tire chains on board stowed in the center "well" of the spare tire. Come wintertime the second set goes onboard.
 
About two weeks ago both sets were installed and not removed until a few days ago.
 
But. Most of my early wintertime driving experience was in NH, Goose Bay, Alaska, and MT, not one FWD in all that time and experience and I don't remember driving anything but RWD.
 
So, yes, many's the time I had to "hang on and pray". The rear end coming around to my "right", stear right, into the skid (against EVERY survival instinct, and often toward the road drop-off, if not an immoveable object) wait, wait, wait, until traction "catches", now gently, even so gently begin stearing back into the direction you wish to go....
 
Sweat pouring off your brow.
 
Maybe I was just one of the lucky ones, before the AF would allow me to drive on the flight line I had to practice, again and again, losing control of our SAC equipment "bread trucks" on glare ice, and then recovering to do it yet again. Until my instructor decided I wasn't a danger to our B47's or KC-97's.
#138 of 149
Re: FWD engine braking [steve_] by andys120
Jan 04, 2009 (8:36 am)
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Replying to: steve_ (Jan 03, 2009 11:32 am)

With an automatic transaxle just how do you "ease" into a lower gear...??
 
It's very difficult with the old-fashioned column-mounted PRNDL type shifters but it's a snap with modern "manumatic" setups that have either paddle shifters or console mounted levers. I do it every day with the Steptronic in my 5-Series.
#139 of 149
Re: FWD engine braking [andys120] by wwest
Jan 04, 2009 (10:11 am)
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Replying to: andys120 (Jan 04, 2009 8:36 am)

The question was not intended to ask how you "input" your desire for the transaxle to downshift, but how might the firmware complete the downshift softly, with "ease". Is there any automatic transaxle/transmission firmware that doesn't use a quick/FAST BANG-BANG procedure for DOWNSHIFTING, release one clutch set and engage the next...??
 
And a 5-series implies a RWD or R/AWD vehicle which is not really a part of the subject matter here. And remember that these days the "shifter", regardless of type of implementation, floor console, column, or "paddle", is simply a set of electrical switches which are switched on or off, INSTANTLY insofar as the controlling ECU is concerned.

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