Recently I've been dumping out white stinky smoke from my exhaust every time I go from idle to moving again. I'm guessing my Cats went bad. I'm not getting an CEL. Can anyone reinforce or shed light on the issue? I know a symptom of bad cats is the stinky exhaust smell. Also how difficult is it to change out cats (1-10)? Anyone have a DIY?

 

White smoke generally indicates a blown head gasket! Check your oil for water or your radiator for oil, can go either way. Is your radiator overflow tank still full, is there moisture dripping from your tail pipes? Seriously doubt this has anything to do with your converters because of the white smoke...Gary