Hello I have a 2000 Ford Focus and ever since it was given to me I have had nothing but problems with it.First the throttle cable broke,we fixed that.Then one day the car freaked out an just died turned out to be a fuse,easy fix.Then whenever it rained it would jerk while driving(Like as if I was tapping the break,but I wasnt.) eventually when it got wet it started to stall,so I finally took it to a garage turned out to be a bad Mass Air Flow Sensor,So I had them fix it,they put in a used one for a couple weeks it ran great but then it started doing it again and the engine light came on so I took it to the garage again turned out to be the Mass Air Flow Sensor again.Now I have a hard time believing that I keep getting bad Sensors,I cant buy a new one because there too expensive.I keep going and getting used ones now we have changed the fuel pump twice and the filter.Recently we changed the spark plugs,adjusted the idle setting and now it still jerks when I increase my speed and go to take off from a red light and it still stalls when its wet outside.I dont know what to do any advice would be greatly appreciated.I dont want to put too much more money into this car.I have two toddlers I have to take with me everywhere and Im afraid for there safety.
Thanks
Brandi