2007 Cadillac CTS Q&A
2007 Cadillac CTS Question: What scheduled maintenance would have detected a bad lower compression rod?
I think you may be referring to is a connecting rod? Is the engine making a knocking noise? My guess you may be dealing with a connectiong rod bearing failure. Oil change maintenance intervals can be a key factor if not done regularly. Other things could cause that bearing to fail also. - milesauto
you could not predicted a rod going out. - globalhelper