Honda Car Forum

Hello,

I have a 2008 Accord EX-L and its an Auto. Everyone now and then I like to
put the car in 1 at a red light and shift up to 2 at about 4500 rpms and
then to D3 at about 4500 rpms etc. I am wondering if this upshifting and
downshifting practice is bad to do? I make sure that I don't put the gas on
until the transmission has caught the next gear. I wouldn't think so, but
wanted other opinions.

I know what everyone is going to say "Why didn't you get a manual
transmission??" Well the fact is I only like to shift every now and then, so
I would fall into the weekend shifting enthusiast category, and
unfortunately I cannot afford to have two cars, so I have an automatic
transmission car.

Thanks,
Al

alfred wrote:
> Hello,
>
> I have a 2008 Accord EX-L and its an Auto. Everyone now and then I like to
> put the car in 1 at a red light and shift up to 2 at about 4500 rpms and
> then to D3 at about 4500 rpms etc. I am wondering if this upshifting and
> downshifting practice is bad to do? I make sure that I don't put the gas on
> until the transmission has caught the next gear. I wouldn't think so, but
> wanted other opinions.
>
> I know what everyone is going to say "Why didn't you get a manual
> transmission??" Well the fact is I only like to shift every now and then, so
> I would fall into the weekend shifting enthusiast category, and
> unfortunately I cannot afford to have two cars, so I have an automatic
> transmission car.
>
> Thanks,
> Al
>
>

leave it in auto and floor it. then you'll see it shift /at/ the red
line. like it's programmed to do.

as for manual selection, quit worrying. the computer has full over-ride
and stops you doing anything that'll cause any harm.

jim beam wrote:
> alfred wrote:
>> Hello,
>>
>> I have a 2008 Accord EX-L and its an Auto. Everyone now and then I
>> like to put the car in 1 at a red light and shift up to 2 at about
>> 4500 rpms and then to D3 at about 4500 rpms etc. I am wondering if
>> this upshifting and downshifting practice is bad to do? I make sure
>> that I don't put the gas on until the transmission has caught the next
>> gear. I wouldn't think so, but wanted other opinions.
>>
>> I know what everyone is going to say "Why didn't you get a manual
>> transmission??" Well the fact is I only like to shift every now and
>> then, so I would fall into the weekend shifting enthusiast category,
>> and unfortunately I cannot afford to have two cars, so I have an
>> automatic transmission car.
>>
>> Thanks,
>> Al
>>
>
> leave it in auto and floor it. then you'll see it shift /at/ the red
> line. like it's programmed to do.
>
> as for manual selection, quit worrying. the computer has full over-ride
> and stops you doing anything that'll cause any harm.

ah, i forgot to look, it's alfred the worrier. alfred, stop driving.
you might be hit by another vehicle.

In article <ad0Rj.3374$1M1.6@newsfe23.lga>,
"alfred" <tomboy83=@yahoo.com> wrote:

> Hello,
>
> I have a 2008 Accord EX-L and its an Auto. Everyone now and then I like to
> put the car in 1 at a red light and shift up to 2 at about 4500 rpms and
> then to D3 at about 4500 rpms etc. I am wondering if this upshifting and
> downshifting practice is bad to do?

AAAAAAAAAAAGH! STOP IT! STOP IT RIGHT NOW!

You are causing 20 times the amount of wear in your transmission each
time you drive like this. At this rate, you will be looking at a
complete rebuild in about two years.

On the bright side, won't it be nice to drive a car with a new
transmission when everyone else is still dealing with their two year old
transmissions?

Of course, this doesn't EVEN take into account the unnatural strain on
the engine. Buddy, why are you even buying a car in the FIRST PLACE?

I bet you leased it, right? This is why I don't buy lease returns.

And since you leased it, you got screwed during the sale to begin with.
Man, to kill your bank account AND your car all at once. Unbelieveable.

>
> AAAAAAAAAAAGH! STOP IT! STOP IT RIGHT NOW!
>
> You are causing 20 times the amount of wear in your transmission each
> time you drive like this. At this rate, you will be looking at a
> complete rebuild in about two years.
>

I seem to remember in the car manual that it said that the car can be driven
like a manual if you want, by using the gears. Why would this put strain on
the tranny? Its just like driving it the reular way except you are shifting
it.


>
> I bet you leased it, right? This is why I don't buy lease returns.

Yes I leased it. Actually I got a good lease deal.

In article <CrPRj.30838$KJ1.16631@newsfe19.lga>,
"alfred" <tomboy83=@yahoo.com> wrote:

> > AAAAAAAAAAAGH! STOP IT! STOP IT RIGHT NOW!
> >
> > You are causing 20 times the amount of wear in your transmission each
> > time you drive like this. At this rate, you will be looking at a
> > complete rebuild in about two years.
> >
>
> I seem to remember in the car manual that it said that the car can be driven
> like a manual if you want, by using the gears. Why would this put strain on
> the tranny? Its just like driving it the reular way except you are shifting
> it.

You'll find out!

"alfred" <tomboy83=@yahoo.com> wrote in
news:CrPRj.30838$KJ1.16631@newsfe19.lga:

>
>>
>> AAAAAAAAAAAGH! STOP IT! STOP IT RIGHT NOW!
>>
>> You are causing 20 times the amount of wear in your transmission each
>> time you drive like this. At this rate, you will be looking at a
>> complete rebuild in about two years.
>>
>
> I seem to remember in the car manual that it said that the car can be
> driven like a manual if you want, by using the gears. Why would this
> put strain on the tranny? Its just like driving it the reular way
> except you are shifting it.



Shifting manually will do no harm at all; the tranny is designed for this.

According to the Owner's Manual:
"To shift from Second to First, press the release button on the bottom of
the shift lever. This position locks the transmission in first gear. By
upshifting and downshifting through 1, 2, D3, and D, you can operate this
transmission much like a manual transmission without a clutch pedal."


Have fun. Just make sure you shift below the redline.


--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/

>>>
>>> You are causing 20 times the amount of wear in your transmission each
>>> time you drive like this. At this rate, you will be looking at a
>>> complete rebuild in about two years.

> Shifting manually will do no harm at all; the tranny is designed for this.
>
> According to the Owner's Manual:
> "To shift from Second to First, press the release button on the bottom of
> the shift lever. This position locks the transmission in first gear. By
> upshifting and downshifting through 1, 2, D3, and D, you can operate this
> transmission much like a manual transmission without a clutch pedal."
>
>
> Have fun. Just make sure you shift below the redline.
>
>
> --
> Tegger
>
> The Unofficial Honda/Acura FAQ
> www.tegger.com/hondafaq/


Okay so now I have conflicting information. Both seem to know about Honda's
but since Tegger's information is like the manual I would tend to believe
this. Also wouldn't shifting the auto manually be like using the sequential
sport shifter in the acura's for instance? Either way theres no clutch.

On Apr 30, 11:17 pm, "alfred" <tomboy...@yahoo.com> wrote:

>
> Okay so now I have conflicting information. Both seem to know about Honda's
> but since Tegger's information is like the manual I would tend to believe
> this. Also wouldn't shifting the auto manually be like using the sequential
> sport shifter in the acura's for instance? Either way theres no clutch.

Is there any particular reason you believe an Internet poster over the
Owner's manual? It simply amazes me regarding the number of posts made
(not just here but other car boards I am on) with questions that can
be answered simply by looking in the Owner's manual. Or by people
second-guessing the Owner's manual.

Here, I will tilt the balance for you: it's okay to shift it manually!

Don't confuse your automatic transmission with an 'automated manual'
transmission. Yours is an automatic that you can shift manually, if
you desire. An 'automated manual' - such as that found in Audis,
Ferraris, BMWs - is a true manual transmission with automated clutch
operation that can be asked to shift automatically. They are 2 totally
different animals.

Dan D
'07 Ody EX
Central NJ USA

"alfred" <tomboy83=@yahoo.com> wrote in
news:ADaSj.59119$QC.16468@newsfe20.lga:

>
>>>>
>>>> You are causing 20 times the amount of wear in your transmission
>>>> each time you drive like this. At this rate, you will be looking
>>>> at a complete rebuild in about two years.
>
>> Shifting manually will do no harm at all; the tranny is designed for
>> this.
>>
>> According to the Owner's Manual:
>> "To shift from Second to First, press the release button on the
>> bottom of the shift lever. This position locks the transmission in
>> first gear. By upshifting and downshifting through 1, 2, D3, and D,
>> you can operate this transmission much like a manual transmission
>> without a clutch pedal."
>>
>>
>> Have fun. Just make sure you shift below the redline.
>>
>>
>>
>
> Okay so now I have conflicting information. Both seem to know about
> Honda's but since Tegger's information is like the manual I would tend
> to believe this. Also wouldn't shifting the auto manually be like
> using the sequential sport shifter in the acura's for instance? Either
> way theres no clutch.
>
>



Tegger has done lots of thinking about this. The product of that
thinking is below.

In a Honda automatic transmission, shifted automatically, the
transmission computer (TCM or PCM)decides when it will trigger the
shifts. It makes its decisions based on many factors, chief among them
being: road speed, engine speed, engine coolant temperature and throttle
position. The PCM effects automatic gear changes by powering/depowering
the various transmission solenoids (and there are many of them)
necessary to engage/disengage particular gear ratios.

Operating the shift lever manually means that you -- and not the
computer -- command the solenoids to operate. Placing the lever in "2"
for instance, causes the shift solenoids to assume the identical same
positions they would had the PCM forced the shift to "2" itself. Either
way the transmission responds in an identical manner using identical
parts, and will engage the new gear with identical vigor.

In other words, the same parts are operated to change gear whether the
PCM gives the signal via its logic or you give the signal using the
position of the gear lever. Honda did not install two separate sets of
transmission control mechanisms.

I can see just two possible problems with shifting an automatic
manually. These problems are: overspeed of the engine, and "lugging".

In a manual transmission there is nothing to save you from catastrophic
engine failure should you, say, shift into second and let out the clutch
at 85mph. Even though the engine's ECM will have cut off fuel near
redline, the solid mechanical connection between engine and road wheels
will pull the engine into mechanical failure territory and a rod will
poke itself through the block.

Likewise, if you choose to shift your manual 5th at 10mph, the engine
will labor mightly to keep the car moving, pounding the crankshaft and
rod bearings oval in the process.

In an automatic the PCM constantly monitors engine and road speed, even
when you shift manually. I would *think* the PCM would block the manual
gear-change signal from reaching the solenoids if the resulting engine
speed would exceed redline, but I have never tried this, not having a
disposable car to test on.

With an automatic, if you put the lever into a lower gear and repeatedly
forget you've done so, you'll be running the engine at a far higher RPM
than the PCM would run it at, leading to greatly increased engine wear.

Remember that moving the lever to "2" locks the transmission in that
gear. It is therefore possible to overheat and damage the transmission
and its fluid due to lugging at low road speeds in too high a gear,
provided you lug the powertrain for long enough.

It is interesting that the Owner's Manual mentions the engine speed
limiter (present on both models), but has a caution ONLY for the manual
transmission model. The manual transmission caution warns that the
engine speed limiter only works on upshifts, it does not work on
downshifts; you are warned to make sure you will not exceed the engine's
redline when downshifting. Plus there are tables indicating maximum
speeds in gears. The automatic transmission section gives no such
warning and has no speed tables. This implies that the PCM will protect
you from major stupidity.

Elmo's warning has truth to it: When you take upon yourself the
responsibility of choosing your own gear ratios, you also take upon
yourself the responsibility of knowing something of the machinery of
your car, and the damage you may cause by manipulating that machinery
incorrectly. Maltreatment of the equipment is called "abuse". Honda will
not honor warranty claims resulting from abuse.


--
Tegger

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/