I got my car Dec. 2006 and two months later the alternator goes out. Three months after that one of my valve seats drop and the pistons looked like someone took a meat cleaver to them. So, after sitting for another 6 months I put a new head on and not a week later all 4 valve seats drop and again the pistons looked horrible. I took it to the mechanic 2wks ago to get a new motor put in and they call and tell me the motor they put in blew as soon as they started it up. So, motor #4 went in the next week and I went and picked it up. Everything seemed fine drove it around all day and then the oil light comes on. WTF! I look in the motor no oil, so I thought the mechanic didn't put enough oil in the motor or something. So, I start pouring oil in and it's pouring out underneath the car.[?|] Took it home and checked everything out, the cam shaft seal popped out. I stuck it back in and everything was good again. Yesterday I'm driving the car around again and it starts idling all retarded. When I sit at a light it idles real low and then normal and then low again and shuts off. The check engine light comes on w/ the code 0171 which is system running to lean. I tell you as soon as I fix the car this time I'm done. She is being traded in for something else. My car makes me sick.[vommit] I love my little car so much at the same time. I had already started modifying it and had it almost the way I wanted it and now I just don't trust it enough to keep it. Damn blasted Focus!