My under-engine liner is starting to come off... after a couple curb impacts and stuff it fell off, then fell off after another one. Today it just came off, but whereas the others had been it falling off the front bumper, this was off the back mounts, near the oil pan. I can fix it I think, just need some bigger washers to hold it on and stuff, but my question is- Is it worth it? What happens if it really goes? If necessary, should I have it replaced?
Edit: Just to be clear, I'm meaning the plastic thing on the bottom of the car. I've heard it called a drip liner too. Oh, and I just read- engine under cover.