2003 MAZDA MAZDA6 User Comment / Complaint

I purchased my mazda in 2003. since the purchase everything was fine until the end of oct. 2005 my engine light came on and my car was shaking, and my rpms where malfunctioning (going up and down, then back up again). i took my car to the dealership and was informed that my car jumped time, my car had under 45k miles. they fixed it, but in the beginning of nov. 2005, not even a month later, my car did the same thing, but this time i was told that the bolts in my engine needed to be replace. then in the summer of 2006 i had a vacuum leak, my car would start and stop, i had that repaired at repair shop of my own chose, since my warranty was up. now in april 2007, i was informed by a repair shop, of my own chose, that i thrown a rod in my motor.