The torque converter helps an automatic transmission connect and disconnect from the powertrain. It functions like a clutch in a manual transmission.
The torque converter is a fluid coupling that contains three elements, including the impeller, turbine and stator. Unlike a traditional fluid coupling, a torque converter is able to multiply turning power.
The impeller and turbine are fan-like parts that move in transmission fluid. The impeller connects to the engine and the turbine connects to transmission input shaft. Unless the vehicle is in neutral or park, the motion of the turbine makes the vehicle move. The stator sits between the impeller and turbine and aids fluid flow. The impeller spins and pushes fluid against the turbine and causes it to spin. The faster the impeller, the faster the turbine,which means the vehicle will move faster.Learn More
Torque in cars is a measure of how much turning force the engine can provide, which indicates how fast the car can accelerate. Cars with more torque have an easier time reaching higher speeds, towing heavier loads, moving from stand-still and climbing hills.Full Answer >
There are several reasons why an automatic transmission makes a whining sound. The transmission pump makes this sound as pressure increases with rotational speed. This occurs while stationary and increases as the vehicle accelerates. A clogged transmission filter creates a similar sound to a whining pump. If the vehicle is low on transmission fluid, it can also cause a whining sound, accompanied by gear shifting problems and other habitual issues.Full Answer >
A Tiptronic transmission is an automatic transmission that includes an option to switch out of automatic mode and upshift or downshift by using paddles behind the steering wheel or by using the gear lever itself. The name Tiptronic is a registered trademark that is owned by car manufacturer Porsche.Full Answer >
Shifting problems in a car with an automatic transmission are an indicator of an issue with the transmission's internal or external components or of an electrical issue. Trouble shifting may indicate external controls that need adjustment or replacement, or it may signal that electrical components are not functioning correctly, according to AAMCO. It's also possible that shifting problems are caused by low or burnt transmission fluid, according to Mister Transmission.Full Answer >