My ford focus lx 2000 has been working and running great i have had no signs of any problems besides getting the ignition replaced about a month ago otherwise its been working wonderfullly . I took my mother to the store and we were inside for about an hour. when we came back i started the car and it started for a second then died. then i got it to started and the car was like bouncing shaking badly,and heat was coming out of the vents with no air on and the car was like knocking. idk if its actually "knocking" but it was like a fast clicking thudding noise and then it drove normal for about twentyseconds and then the brakes started to not really work anymore. you had to pressdown as hard as possible to get the car to stop. checked the oil. there was still oil it was fine. steering still worked fine. I need some guidence!!!