what is 5-speed auto transmission

Hello,

I have 2006 CR-V EX, 5 speed auto transmission. But on the Panel, I see only 4 types of speeds. D, D3(with the press of the button on the gear shift), 2 and 1.

Doesn't that mean 4 speed?? Or what does 5-speed mean? Can you say from the panel by looking at it, that its 4-speed or 5-speed??

Thanks in advance

Reply to
ravi
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You can tell by counting the shift points.

Reply to
<HLS

I'm not familiar with that transmission but some transmissions have a different gear ratio in certain gears depending on whether it's shifting up or down. For example, 2nd gear might have one ratio when shifting up from

1st and a different ratio on a forced downshift from 3rd. In this way a 4-speed could have 5 actual gear ratios (or speeds).
Reply to
John Kunkel

Now look at what positions you see on the gear selector of a typical four speed: there are three forward speeds such as 1, 2 and D, or D1 D2 D, or L 2 D or whatever. Four speeds, four selections. Hmm!

No, it means that the transmission doesn't let you cut out second gear.

The numbering doesn't correspond to gears. An engineer would never do that, so that idea must have originated with automotive product managemen, who decided that the consumer would be perplexed if the numbering started at 2.

You aren't actually shifting gears with these selectors (though some autos have a mode for that). What it means is that in D, the transmission will choose among all five available gears. Each notch down from D removes one gear from consideration. In D3, it will restrict itself to the first four gears and so on. So in D1, you aren't actually restricting it to first gear, but first and second.

Also, these restrictions are really just a hint to the transmission. If you are driving too fast to downshift out of a gear, the hint may be ignored until you slow down enough to make the downshift safe for the engine. Then it will honor the request and not shift back to the gear until you allow it.

It really means that there are five forward ratios in the gearbox.

Typically, as a rule of thumb, there is one more gear ratio in the transmission unaccounted for by the selector. But there are probably plenty of exceptions out there.

Reply to
Kaz Kylheku

Now look at what positions you see on the gear selector of a typical four speed: there are three forward speeds such as 1, 2 and D, or D1 D2 D, or L 2 D or whatever. Four speeds, three selections. Hmm!

No, it means that the transmission doesn't let you cut out second gear.

The numbering doesn't correspond to gears. An engineer would never do that, so that idea must have originated with automotive product managemen, who decided that the consumer would be perplexed if the numbering started at 2.

You aren't actually shifting gears with these selectors (though some autos have a mode for that). What it means is that in D, the transmission will choose among all five available gears. Each notch down from D removes one gear from consideration. In D3, it will restrict itself to the first four gears and so on. So in D1, you aren't actually restricting it to first gear, but first and second.

Also, these restrictions are really just a hint to the transmission. If you are driving too fast to downshift out of a gear, the hint may be ignored until you slow down enough to make the downshift safe for the engine. Then it will honor the request and not shift back to the gear until you allow it.

It really means that there are five forward ratios in the gearbox.

Typically, as a rule of thumb, there is one more gear ratio in the transmission unaccounted for by the selector. But there are probably plenty of exceptions out there.

Reply to
Kaz Kylheku

Some transmissions have overdrive gears in them.....for instance, i have a car with a 4 plus 3 speed, which means second, third and fourth have a second "speed" or gear ratio to them. My truck also has whats called an overdrive gear in it that you can "lock out" or not use. An overdrive gear, or "speed" is usually good for good gas mileage. If you are towing a boat, or carrying a heavy load, it would be a good idea to "lock out" or not select the overdrive gears, unless of course you are traveling on the highway, etc.... The same theory in 4 wheel drive.... the older ones you had to turn the center hub in the front wheels and shift a selector inside the vehicle to 4l or 4h...the newer ones are usually now conrtolled by computer with a pushbutton on or near the shift lever.

Hope this helps,

Fwed

Reply to
fweddybear

Ravi, your selector seems to indicate there exists a D2--else why the skip between two gears when they go 1,2,D, D3? That D2 may not be manually selectable, altho' it still exists & is used automatically under only certain parameters; whereas the others are manually selectable, depending on shifter-detent positions. Nonetheless as AP said, count the times it shifts on a semi-firm push on the accelerator; then add 1 to this number(for the 1st one it was ALREADY in before it began shifting). Luck to its lasting AND giving excellent fuel mileage. From an engineering perspective, the more gear selections it offers for more driving parameters, the more efficient--UP TO A POINT. s

Reply to
sdlomi2

What does the owneers manual say about D, D3, 2 and 1.

Reply to
John S.

It is a 5 speed.

1 = 1st gear 2 = 2nd gear D3 = 3rd gear D = 4th gear and Overdrive

In 1 it should stay in first gear and not shift. In 2 it can shift between 1st and 2nd in D3 it has 1,2, and 3rd In D it has 1st, 2nd, 3rd, 4th and Overdrive, and will select them based on the speed and torque of the vehicle and engine. In D3 and D you also usually have a lockup converter that will also shift in/out of lock.

If you look in many vehicles you will find similar shift markers. For instance my 2002 S blazer has a 4L60E transmission in it. That is a 4 speed transmission with lockup

Reply to
Steve W.

The '06 CR-V EX does in fact have a 5-speed automatic, but the shifter only offers P-R-N-D-2-1 and the "OD-off" button on the end is marked D3. There is no way to manually access 4th gear.

So, in the case of this particular car, you cannot tell from the panel by looking at it. Watch the tach and listen to it accelerate and you will observe 4 up shifts, indicating 5 forward gears.

Reply to
E Meyer

I'd suspect that "overdrive off" /is/ how you knock down to 4th gear. If you're in D, all 5 gears are used. When that D3 button is activated, it probably knocks out fifth gear, so you're using 1-4. Then, regardless of the button state, 2 restricts to gears 1-3 and 1 restricts to gears 1-2. So there is no way to restrict the transmission to just use first gear.

Reply to
Kaz Kylheku

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