Help! I was changing the alternator on my 2013 Chevy Cruze lt 1.4 L turbo, and as I was torquing one of the engine mount bolts, the ones that go into the block, and it snapped. What do I do now? And is it fine if I leave it as is? Will the broken thread fall into the engine block cavity (when disassembling I notice that the three bolts have oil on the threads)?