You need to service the transmission. Have the fluid/filter changed. If that does not help, seek professional help.
a major part of an automatic transmission... A torque converter is what couples the engine to the transmission. It acts a little bit like a clutch and allow the engine to drive the transmission. At slow engine speeds, like at idle, it slips so the engine will not stall while the transmission is in gear. As engine speed (RPM) increases it allows the engine to drive the transmission. This is just the basic idea of what a torque converter does.
Four speeds on your transmission and the overdrive is when the engine speed and the transmission speed are engaged is a interchangeable load. running "free" sort of
Automatic transmission shifts can be related to fluid temperature and some vehicles also have sport style settings that can change shift quality. If the shifting is irregular and causing unusually high engine speeds this could be a symptom of transmission gear slippage. Gear slippage can result in transmission damage, and should be checked as soon as possible. Automatic transmissions are complex systems, and their overhaul/replacement can be very expensive repairs.
It is called a 42rh if it has overdrive, three speeds would be a 32rh
Your transmission shifts according to the speed you are traviling. Different tire size rotate different speeds according to how big or small they are, small tire will rotate 2 times as a big tire rotates 1 so the ratio is 2to1 so if u have bigger tires u will travel further and faster than a smaller tire so it will affect when transmission shifts
A loud knocking noise in the motor of a car at high speeds is most likely the engine. There could be another issue with the transmission if the knocking only happens at high speeds.
Overdrive is the most direct transmission gear ration (usually 1:1) which is the highest gear on the liberty's transmission. The O/D off setting is used primarily during hill climbs at high speeds when more acceleration/towing power is necessary.
4 speed. There are three speeds in which the transmission permits more slippage between the engine flywheel and the torque converter. The OD, or "overdrive" gear is a fourth gear that creates a direct mechanical connection between the transmission and engine. This creates a higher gear ratio that improves gas mileage.
Does the speedometer work? Sounds like the electrical connector from the transmission to the PCM is either not plugged in correctly or at all.
Depends on what engine, transmission and gearing the car has, but they could reach top speeds of 130-135 MPH.
An overdrive transmission adds an additional gear ratio to the vehicle. This additional gear allows the engine RPM's to be lower, resulting in better fuel economy at higher speeds.
The Toyota Yaris 2007 has 106 horsepower. It gets its horsepower from its 1.5 liter engine. The 1.5 l engine has five speeds with automatic or manual transmission.