the cover under my engine whichis rightbefore my frontbumper is hanging down scrubbing the ground on the right end near the tire, should I change the whole undercover?
Id realli appreciate if I got a reply..Thanx

 

if its a black piece that just bolts onto the frame itself, then its not really necessary.

It is designed usually for two purposes. Divert air to/from radiator and to let you know when you've begun to park too close to a curb.

 

thanx

 

Yeah, it's a splash guard. Pretty useless. Even if you are driving through a lot of puddles, it's not really necessary. But it will keep your engine bay cleaner.