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If you shift manually, you have a manual transmission. If your car shifts for you, you have an automatic.
An automatic transmission is a type of car transmission that shifts gears on its own. Therefore, cars with automatic transmissions will not have a clutch pedal and will have a selector lever as opposed to a shift knob.
If you are asking the function of a modulater valve,it is to smooth out the shifts in an automatic transmission.
An automatic transmission is a mechanical transmission which shifts gears automatically in response to speed and/or load rather than requiring someone to do so manually.
A car with an automatic transmission shifts itself from 1st to 2nd to 3rd when you accelerate. You don't need to shift it...that's why they call it automatic.
If the pcm controls the transmission the shifts could be inaccurate.
Probably need to rebuild the transmission.
It means that you do not have stick shift in your car, your car shifts gears for you, you don't have to do it, so basically if you don't have a stick shift car you have an automatic transmission car.
A transmission that shifts through gears after moving lever to "d" without driver doing anything no clutch pedal
It should only do it under braking. It is to help slow you down.
an automatic transmission shifts through the 4 or 5 gears for you as you accelerate. a manual transmission must be shifted by hand using a shifter and a clutch (located next to the left of the brake pad).