The suspension is what keeps the tires moving when driving over rough roads. Without it, the car can't drive smoothly. It also has a similar purpose to seat belts. To keep the driver and passenger safe when driving on bumpy roads. Steering problems have to do with the wheel since it's what controls the gears that turn the tires. Improper tire pressure is indicated by uneven tire tread and so are the other options. Low fuel is because your dad forgot to take the truck to the gas station.
