It means your gearbox, (auto), is not changing at the correct speed it is set up for. For instance, if the box was set to change from first to second at 20mph, it actually changes at 30mph etc.
you have a broken transmission mout
Shifting forks.They slide the gears along splines engaging them to another gear.
The transmission uses a series of gears to transmit power to facilitate changes in speed .
Transmission gears? In the transmission.
Gears is what transmission is for. No gears. No transmission!
Gear changes are determined after how fast the engine is turning. For each gear there are set limits for which engine revs that are allowed. if the revs go high, the transmission changes up a gear, if the gears go low it drops down a gear.
A c-4 transmission has 3 gears.
A worn transmission gear can cause a Chevy Impala to whine when the gears change. A bad fan belt can also cause this.
Clutch pedal
That problem is USUALLY caused by a faulty transmission "valve body".
3 gears
Too low. Transmission fluid lubricates the transmission gears and bands and helps to keep transmission operating.