My 2005 Sonata (which I gave to my daughter) broke down on the interstate last night. It has the 2.7 6 cyl engine.) The top gear to the rear inside of the timing cover (I assume it is the cam gear) snapped off of the shaft. It actually grinded a hole thru the cover itself and I just reached in and pulled the gear out. Crazy. Am I correct in assuming that this engine has crashed and is now junk?