Is there an easy way to tell if my struts have gone bad without taking them off the car? I replaced in Aug 2006 but I am starting to get a rattle/knocking noise similar to before I replaced the struts. When I removed the old struts the rod had no resistance and fell straight down. The car would bottom out on small bumps. Car does not currently bottom put but rattles like crazy on bumpy New Orleans streets. Replaced with Arnotts and contacted them regarding replacement. Person I spoke said once I verify struts are bad to contact them and they would send out replacements with return labels for old ones. I just want to verify the strut are the problem before taking car apart.