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Shifting an Automatic...Question

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Old Aug 29, 2006 | 10:10 PM
  #11  
YeuEmMaiMai's Avatar
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Joined: May 2006
Posts: 1,905
Default RE: Shifting an Automatic...Question

You are wrong.

1. You do not have to press the button to get into first or second.

2. I never said that the trans would go to 2nd gear without going through the intermediate gear. The example is for moving the selector and when I statd that the trans would go to the gear it is assumed that you understood that it would shift though the next gear to get there.

3. A manualmatic will shift up and down when you request as long as it will not cause the engine to over rev.

And before you open your mouth and spout more BS as to why you THINK my trans was rebuilt twice, let me educate you as to WHY my trans was rebuilt. I have a '94 Honda Accord that is still on the original trans after 150K and I have moved the selector through the forwards gears at time when I like to have a little fun.

#1. Main bushing failed in drive shaft. I bought the car with the trans busted so exactly what are you talking about?

#2. When they rebuilt the trans, they put the WRONG parts into the unit. Again please do not talk about something that you know little or nothing about.

A manual matic is not any different than an auto. The only difference is the TCU used to control the unit.

Bottom line is that NOTHING WILL HAPPEN WHEN YOU MOVE THE SELECTOR FROM D4 to any other FORWARD GEAR. The transmission will shift to the approperiate gear as requested as long as the parameters for engine operation are not exceeded.
 
Old Aug 29, 2006 | 11:20 PM
  #12  
marbro's Avatar
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Posts: 1,475
Default RE: Shifting an Automatic...Question

First off when i said its designed to, references the TCU which is made to control the downshift like that, oddly enough an auto wont work without the TCU.

and i guess because every single car that ive seen is made so you have to push the button to move it into second and first is just a weird quirk that Toyota, Honda, Ford, Chevy, Nissan, Acura, and every other auto maker designed "by accident" for their automatics. And these odd little groves prevent you from shifting into reverse when youve already shifted out of it, just as it prevents you from moving it from D3 to D2 and from moving it from D2 to D1.

I know that it isnt designed that way with an auto manual but you have to tell the computer your going to manually shift it by moving the stick to the right when youre in drive. Where a normal auto has NOTHING that tells it youre going to manually shift it, because the TCU isnt made to do that while in drive, because if it were, it wouldnt have those little stepped groves that prevent you from shifting into second and first! And oddly enough vehicles with the shifter in the steering column prevent you from moving into 2 and L without pulling the leaver back then down, just like it wont let you move it into reverse without pulling it back. Even with cars with just D and L you cant shift down into L without pushing the button.

I dont care about your broke transmission and i dont care about what you decide to imply, next thing youll tell someone its a good thing to shift a manual without pushing down clutch pedal.
 
Old Aug 30, 2006 | 12:32 AM
  #13  
YeuEmMaiMai's Avatar
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Joined: May 2006
Posts: 1,905
Default RE: Shifting an Automatic...Question

He asked about moving the selector from D4 to D1 or any othe forward gear will not hurt the transmission. END OF THREAD. That is what he asked.

did you not say this?

"Sparco, just to save time, keep in mind YeuEmMaiMai has had his transmission rebuilt twice now, so if you think down shifting is something that cant harm the transmission, go ahead and do it, otherwise, dont do it. "

You are the one here who is talking crap and I set the record straight.

BTW, Auto transmissions worked just fine before the TCU came alonng as they were vaccum / pressure controlled and they still locked out gears if engine speed was too high
 
Old Aug 30, 2006 | 12:34 AM
  #14  
Sparco_racingVTEC's Avatar
Thread Starter
Joined: Jul 2006
Posts: 96
From: Stow/Cuyahoga Falls/Kent, OHIO
Default RE: Shifting an Automatic...Question

ok well my car has 78000 miles i just dont want the transmission to blow in the next 3 years or so :P


btw, when u go from D3 to 2 or 1 you do have to push the button, but from 1-2-3-4 no button...

anyway i probly wont shift down that much anymore i just like getting the high rpms in first and 2nd knowm sayin
 
Old Aug 31, 2006 | 01:24 AM
  #15  
bpo145's Avatar
Joined: Jun 2006
Posts: 27
From:
Default RE: Shifting an Automatic...Question

if the gears are on the selector why would they be there if they were not to be used. my accord is manual but, the manual book for the toyota siena van advocates the use of downshifting on the selector. its likely not a good idea to be power shifting with the gear selector since it was not intended for that anyways. if you abuse anything it will break faster especialy an auto with a driver treating it like a manual. I am obviously not any honda tech but i tried to use some common sense.
 
Old Sep 2, 2006 | 02:16 AM
  #16  
Sparco_racingVTEC's Avatar
Thread Starter
Joined: Jul 2006
Posts: 96
From: Stow/Cuyahoga Falls/Kent, OHIO
Default RE: Shifting an Automatic...Question

yea i dont downshift but i dont see the problem in shifting up...
 
Old Sep 9, 2006 | 04:25 PM
  #17  
HondaRacer4Vtec's Avatar
Joined: Jul 2006
Posts: 324
From: new york
Default RE: Shifting an Automatic...Question

Well unless iam wrong when you press the gas all the way down the car down shifts to the maxium power gear? So whats would be the problem doing it manual yourself if the car does it. No matter how you shift it has to go thourgh all the gears. On the shifter its a stright line D1 D2 D3 D4 in order to downshift from D4 to D2 you have to go to D3. The car does the same thing when press the gas all the way down. Doing it maunally should cause no prb. I downshift when i need more power, my car has 160,000 miles on it and i have no prb with tranny what so ever.
 
Old Sep 17, 2006 | 06:24 AM
  #18  
Stan86
Unregistered
Posts: n/a
Default RE: Shifting an Automatic...Question

Um... mine too
year 97 I-4 and I shift up and down like a manual all the time.. no problem at all either, its almost 140k
 
Old Sep 18, 2006 | 03:18 AM
  #19  
whitev6penguin's Avatar
Joined: Jun 2006
Posts: 12
From:
Default RE: Shifting an Automatic...Question

how many times have we had this argument...
 
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