Why a/t innova does't have o/d switch

**rhonrhob_076** · August 19th, 2010 05:49 PM

Hello to all the guruzz,im just wondering what is the purpose of having a o/d or overdrive,as par what i read all a/t transmission is having this o/d,then i check my innova g a/t only i got 2 months ago does't have a o/d,can you guys give me an advice,first time to have a a/t transmission car...thanks

**ghosthunter** · August 19th, 2010 05:52 PM

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**viper2lt** · August 19th, 2010 11:14 PM

*rhonrhob: hi and welcome to tsikot. the purpose of the o/d is to lower the engine speed and improve fuel economy. the d4 in our innovas is actually the o/d. hth!

**roberto_minosa** · August 19th, 2010 11:22 PM

O/D switch = top gear. Switch off to keep the car in 3rd gear (on 4-speed A/Ts).

A/T Innova:

D4 = top gear. Shift to D3 to keep the car in 3rd gear. Same banana.

Lower engine speed is due to shifting to a taller gear ratio (to top gear).

**OTEP** · August 19th, 2010 11:25 PM

Because it already has a D3 position marked on the shifter.

O/D is any gear ratio that is numerically less than one (you can see this in the spec sheet).

On the Innova, only the top gear (4th gear) is numerically less than zero. It is the only overdrive gear available.

Driving with the shifter in D3 is equivalent to driving with the O/D off since the transmission will only reach third gear (direct drive or gear ratio 1.000) and not go into overdrive anymore.

**rhonrhob_076** · August 20th, 2010 11:12 AM

ah ok thanks to all of you guys,now i got it and gain some more knowledge,nice to have this kind of forum its very helpfull,thanks again guys,i really appreciate it,thanks again.....

**rhonrhob_076** · August 23rd, 2010 03:52 PM

ah sir otep one more question bakit wala yatang "d" or "d4" ang innova a/t,sorry sir otep d2 kasi ako qatar d ko ma nakikita yung auto kaya curious lang ako sobra,wife ko lang nagmamaneho nung auto sir

,,thank ulit sir otep

**Starex_Gold** · August 23rd, 2010 04:03 PM

Meron kayang "D" ang Innova. D4 na yung ibig sabihin nun. Karamihan kasi ng bagong kotse ngayon hindi na naka lagay yung number ng gears. Usually "D" nalang. Hindi "D6" "D5"..

Ito yung naka lagay sa Innova:
P
R
N
3-D
2
L

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**rhonrhob_076** · August 23rd, 2010 04:47 PM

ah ok sir starex oo nga sir,hinahanap ko kasi yung "d" or "d4" bukod pa sa 3d kasi di ba sir 4 speed meaning hangang 4th gear siya,so meaning kapag naka shift ako sa 3d meaning naka off ang o/d ko so ang gear ko hangang 4th gear na which is its maximum,tama ba ko sir

**Starex_Gold** · August 23rd, 2010 04:54 PM

Kasi ganito yan

Kaya "3-D" yun, kasi magkatabi sa gear selector yung "3" at "D".

Right Hand Drive version yan. Kapag naka tapat sa ilalim ng "N" yung gear knob, ibig sabihin naka "D" ka (Full 4 gear A/T), tapos pag shift mo sa right, nasa "3" (O/D) ka.