having problems with my hyundai not starting. i changed the battery and the started checked the alternator and still nothing. after hours of online searching i found that this is a common problem with most hyundais and nobody knows the answer. upon further examination of my car i removed the valve cover to find that 6 of my rockers had fallen off of the intake side cam. so if anyone else is running into the typical hyundai problem of it only starting when it wants i would start by checking there before throwing a bunch ot other unnecessary parts or money at it.