The front brakes and rotors on a 92 Hyundai excel need to function properly to insure that the car stops quickly. A front brake problem can cause an accident or personal injury.
low coolant ,froze thermostat ,leaks in hoses ,radiator
The Hyundai Excel, produced primarily in the 1990s, typically features an interference engine design, which means that if the timing belt fails, it could cause severe damage to the engine components. In contrast, a free-spinning engine (or non-interference engine) allows the pistons to move without colliding with open valves if the timing belt breaks. Therefore, the Hyundai Excel is not considered a free-spinning engine.
throttle position sensor most liekly cause
possibly the throttle position sensor the sensor will also change the shifting pattern
For a 1994 Hyundai Excel, it's recommended to use power steering fluid that meets the specifications of either Dexron III or a similar automatic transmission fluid (ATF). Always consult your owner's manual for the most accurate recommendations. Make sure to avoid using any fluids that contain additives not specified for your vehicle, as they can cause damage to the power steering system.
The Throttle Position sensor measures the throttle position, which is controlled by the gas pedal. It is used to determine engine load and if it fails it can cause automatic transmission shifting problems.
Sometimes it's the Forward Clutch Piston that needs to be replaced. check your throttle cables
Clean the carbeurator and lube the throttle cable.
Damage to the throttle body is caused by corrosion or direct impacts. A loose connection can cause nearby components to strike and damage the throttle body.
it can cause the car not to start.
I suppose it is possible but I suspect you have carbon build-up in the throttle body. A good cleaning with a throttle body cleaner should clear that sticky throttle up.