ok so im on a steep hill popping a k turn so i can park the other way. when my car is facing almost perpendicular with the street and give it a little gas the pedal loses tension and the car accelerates as if i got the pedal to the floor. my cat like reflexes throws the car on neutral and quickly stomps on the brakes but the rpms is all the way up and runnin. i ended up parking her car while riding the brake. every time i turn the car on the accelertion goes up on its own. what could this be? somebody help.