Overview
The transmission works with the engine to provide power to your car’s wheels. Whether automatic or manual, the transmission plays a major role in the overall dependability of your car. Make sure to check it at the first sign of problems.
What Does It Do?
A transmission/transaxle keeps the engine’s output optimally matched to the speed and load conditions. The torque converter, connected to the automatic transmission/transaxle input shaft, connects, multiplies and interrupts the flow of engine torque into the transmission. Universal joints connect to the driveshaft to transmit output power from the transmission to the rear axle on rear-wheel-drive cars. Universal joints also allow the driveshaft to work at an angle. Automatic transmission fluid services a multitude of purposes. It cleans cools, lubricates, transmits force, transmits pressure, inhibits varnish buildup and continually protects the transmission. There are several different types of automatic transmission fluid. Reference your owner’s manual for how they should be used.
Typical Wear and Tear
Wear and tear on the transmission can be influenced by:
- Driving habits
- Towing or excessive loads
- Operating conditions
- Condition of the transmission fluid
- Frequency of regular maintenance
Symptoms
- Slipping
- Hesitation
- Bucking
- Grinding gears
- Difficulty shifting
The transmission in your car includes:
- Transmission fluid
- Automatic transmission/transaxle, or manual transmission transaxle
- Universal joint
Some vehicles with all-wheel-drive or four-wheel-drive will also use a transfer case after the transmission
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