A few months ago my 2003 Focus started having trouble if I stopped a lot, (running errands, stopped at 3 or 4 places) then the car wouldn't stay running, it would start and immediately die like it wasn't getting gas. I could let it sit for 15-20 min and then it would start and run fine, it didn't do it again for several weeks. It seemed very random, I took it to the shop and they replaced the fuel filter. Now, it's been about 3 months and friday it did the same thing again. THe mechanic shop is a reputable one. He can't really tell me anything because it's not showing any codes now. It has been running fine all weekend. I'm just worried that I'm going to get stranded somewhere. Has anyone else had a problem with this?