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View Full Version : Is Manually Shifting Through My Auto Gears Bad?


Menace
03-03-2006, 08:08 AM
My friend told me that I could manually shift through my gears and downshift when im going to stop. Does this eff with my trans? Is this bad for my car? Sorry if its a newbie question but I never knew I could shift through.

Coupe
03-03-2006, 08:34 AM
Do not manually shift your tranny. Smack your freind sqaure in the mouth.
I do down shift on occasion though, thats not really all that bad, i just to do it hear my exhuast lol

AGT
03-03-2006, 08:39 AM
Let the computer do the work unless you need it...there is a reason that drive works automatically.

Menace
03-03-2006, 08:44 AM
K thanks

overdrive75
03-03-2006, 10:16 AM
You aren't going to hurt anything by manually shifting your trans. About all you are going to hurt is you fuel economy. Do what you want.

Satsuriku
03-03-2006, 10:16 AM
i feel that the ONLY time anyone should do that is if there having a tough time up a hill, remove gas pedal and shift it down for a bit more power and when your clear, again, remove gas pedal and shift back up........even on a hill i dont touch it.

if your friend has an alero and hes doing that............. :gun:

AlbinoMonkeyRat
03-03-2006, 10:26 AM
as long as you aren't going really fast (50+) and throw it into first, you should be fine. And never flip from a forward gear to reverse while moving. That said, you'll be fine to do it, but it'll kill your performance.

jackal2000
03-03-2006, 11:07 AM
Originally posted by AlbinoMonkeyRat@Mar 3 2006, 10:26 AM
as long as you aren't going really fast (50+) and throw it into first, you should be fine. And never flip from a forward gear to reverse while moving. That said, you'll be fine to do it, but it'll kill your performance.
Quoted post

that would be funny to see ...70mph then BAM reverse lmao

(without pulling a 180 that is)

natedawg9640
03-03-2006, 11:20 AM
it's impossible to to flip it to reverse... if the car is moving forward and you try to put it in reverse it will just grind to beat hell... manually downshifting dsoes cause a little more wear and tear on the tranny becasue the pressure spikes if you downshift too early... upshifting doesn't do much but screw with gas mileage... if you are doing a lot of around city driving where you hardly break 45 then you can take it out of overdrive so when you accelerate again off a coast then it doesn't have to take it out for you (just saves the tranny work)... overdrive is for highway use when you are going faster so the rpm's stay farther down than in 3rd gear...

Alero2k4
03-03-2006, 01:31 PM
There is no point even from a performance standpoint to shift the trans manually up the gears. The transmission will automatically shift at the red line if you have it floored, so what is the point. The only time I manually shifted was when my brakes were bad so I didn't have to use them so much.

jackal2000
03-03-2006, 03:07 PM
the trans will auto shift even if you have it in 1st once it hits redline.

but like coupe said, sometimes its cool to hear the exhaust (if you have a performance setup)

Coupe
03-03-2006, 03:23 PM
Originally posted by jackal2000@Mar 3 2006, 08:07 PM
the trans will auto shift even if you have it in 1st once it hits redline.

but like coupe said, sometimes its cool to hear the exhaust (if you have a performance setup)
Quoted post


When i cruise the strip (5-25 mph) i sometimes drop her down in 1st or 2nd. With headers and highflow cat and SLP cat-back its loud and mean as hell sounding, my girl loves it when i do that.

Lovestheh20
03-03-2006, 05:04 PM
see you're very welcome here man, stay around!!

Coupe
03-03-2006, 05:35 PM
Originally posted by Lovestheh20@Mar 3 2006, 10:04 PM
see you're very welcome here man, stay around!!
Quoted post



uh?

xbxradxsx
03-03-2006, 05:44 PM
I think they were replying to overdrive's post

Menace
03-03-2006, 06:16 PM
k thx everyone

Creeper
03-04-2006, 12:56 PM
Originally posted by AlbinoMonkeyRat+Mar 3 2006, 08:26 AM--><div class='quotetop'>QUOTE(AlbinoMonkeyRat @ Mar 3 2006, 08:26 AM)</div><div class='quotemain'>as long as you aren't going really fast (50+) and throw it into first, you should be fine.Â;-) And never flip from a forward gear to reverse while moving.Â;-) That said, you'll be fine to do it, but it'll kill your performance.
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[/b]

I would agree, don't throw it into reverse. Now on the throwing it into a much lower gear at high speeds, well you will add some wear and tear on your tranny if you are always doing this, but because it is an auto it will only shift into the lowest gear that will not redline the engine. Usually I will down shift when coming up to stops (because I like the sound of my magnaflow) but the tranny will not down shift until my RPMs are down to about 3500. Upon down shift my RPMs hit about 5000.

Originally posted by jackal2000@Mar 3 2006, 01:07 PM
the trans will auto shift even if you have it in 1st once it hits redline.
Quoted post


Okay, now have you ever really tried this? If you have your auto in 1st and hit red line you will simply bounce off the redline, almost like you bounce off the speed limiter, I know because I have accidently did this. If you have your auto in 2nd upon take off then you will automatically shift out of 1st when you redline but will not pass 2nd gear if you don't shift it into 3rd or Drive.

<!--QuoteBegin-Alero2k4@Mar 3 2006, 11:31 AM
There is no point even from a performance standpoint to shift the trans manually up the gears.Â;-) The transmission will automatically shift at the red line if you have it floored, so what is the point.Â;-) The only time I manually shifted was when my brakes were bad so I didn't have to use them so much.
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[/quote]

Man, you have get taste in rims and all but I need to call you on this one. I agree with you on the upshift, but I will usually shift down before I go into a corner so I can power out of it. The last thing you would want to happen on a corner that you are speeding through is for your auto trans to shift (down or up) when your not expecting it. Especially on a loose or slick one. What do you think?

:beerchug: :beerchug: :beerchug: :beerchug:

Lovestheh20
03-04-2006, 10:21 PM
Originally posted by Coupe+Mar 3 2006, 04:35 PM--><div class='quotetop'>QUOTE(Coupe @ Mar 3 2006, 04:35 PM)</div><div class='quotemain'><!--QuoteBegin-Lovestheh20@Mar 3 2006, 10:04 PM
see you're very welcome here man, stay around!!
Quoted post



uh?
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[/b][/quote]


Opps.. I was supposed to be quoting overdrive75 he had mentioned in another post of leaving the board.

Menace
03-04-2006, 11:37 PM
off topic dont crap up my threads

Lovestheh20
03-05-2006, 12:15 AM
not to get a tude w/ ya or anything, but don't whine....its only a web board topic. and I was talking about a dude who comes on the board specifically for his knowledge OF TRANSMISSIONS.

SilverBullet256
03-05-2006, 03:11 AM
if i remember correctly, when you put it in reverse when going forward, it kills the engine and basically puts it in neutral, does it the same way from reverse to drive

jeremythebear
03-05-2006, 08:59 AM
When you manually shift an automatic transmission, the computer starts learning that you are shifting firmer at a higher rpm. The computer will then try to compensate and will make your shifts longer and smoother when you end up actually driving in full automatic mode therefore negating what you are trying to accomplish.

jackal2000
03-05-2006, 10:02 AM
Originally posted by Creeper+Mar 4 2006, 12:56 PM--><div class='quotetop'>QUOTE(Creeper @ Mar 4 2006, 12:56 PM)</div><div class='quotemain'><!--QuoteBegin-jackal2000@Mar 3 2006, 01:07 PM
the trans will auto shift even if you have it in 1st once it hits redline.
Quoted post


Okay, now have you ever really tried this? If you have your auto in 1st and hit red line you will simply bounce off the redline, almost like you bounce off the speed limiter, I know because I have accidently did this. If you have your auto in 2nd upon take off then you will automatically shift out of 1st when you redline but will not pass 2nd gear if you don't shift it into 3rd or Drive.

Quoted post
[/b][/quote]
yes you bounce off it, but if you keep gassing it, it WILL shift

AlbinoMonkeyRat
03-05-2006, 01:30 PM
I haven't tried it myself, but I think somebody said it bounces off like 3 or 4 times before it shifts. FYI: it shifts at about 6500 on the 2.4L when going full throttle in Drive. I'm fairly sure that 7000 is the limiter for the 1-2-3 gears. (not sure about rpms on the 3400, though)

UnoWHO
03-07-2006, 09:28 PM
heres a quikc question that goes along with this topic and will eliminate me starting a new thread for something that is prol dumb.

2 twings, BTW:2.4

1. When I am driving sometimes I shift from drive to neutral when Im about to stop for a long time so that I dont have to hold the brake down(Cause Im lazy like that), now I know this isnt in any way bad for the tranny or engine, but for some reason when im coasting or braking to a stop when i hit 10mph in neutral i feel a large jerk, while it just continues to roll, no spiking of rpms nothing just a random jerk, anyone ever had this happen?

2. Lately my tranny has been shifting irratically, like Ill be cruising at 45mph and if I keep the pedal down itll stay in that gear but if I let loose just barely to maybe 42mph it downshifts, it just seems like there should be a small delay there and not such a dramatic line where the auto tranny shifts, my freinds g20 does nothing like this and I was just wondeirng if this is a normal thing that the aleros do

Edit:: When you shift down to get to higher rpms to hear your exhaust your killin your piston rings and internals, in the motorcycle world its called engine braking and only that because a motorcycle is so light that the engine downshifting can alone slow the motorcycle for a complete stop, this isnt recommended for motorcycles and Im pretty sure its worse for the car because its a hell of alot heavier

Rubered00
03-07-2006, 09:46 PM
My car also does the first thing that you mentioned with the jerk around 10 mph. dont know why though.

overdrive75
03-08-2006, 07:39 AM
It has to do with the hydraulics of the transmission, when in neutral. The low band is coming on, while it feels funny, (harsh) it is in no way bad for the transmission. Its just the nature of it. You are in a true neutral state, it is just how the fluid is moving.

So it nothing to wory about.

Menace
03-08-2006, 08:17 AM
A mod can close this thread I got what I needed out of it.

Creeper
03-10-2006, 11:15 AM
Quoted post
[/quote]
yes you bounce off it, but if you keep gassing it, it WILL shift
Quoted post
[/quote]

Originally posted by AlbinoMonkeyRat@Mar 5 2006, 11:30 AM
I haven't tried it myself, but I think somebody said it bounces off like 3 or 4 times before it shifts. FYI: it shifts at about 6500 on the 2.4L when going full throttle in Drive. I'm fairly sure that 7000 is the limiter for the 1-2-3 gears. (not sure about rpms on the 3400, though)
Quoted post


Tried this the other day and it did not shift after 3-4 or even ten bounces. Just like to make sure I'm not imagining things. Maybe it has to do with my year, make, engine and tyranny combo.