So I was using some brake cleaner to clean off my frame rails (had oil from them from a PCV leak that sent oil everywhere...), and I noticed some yellow wax over one of the holes...being an idiot, I wiped it up, and then realized, that hey, maybe it should be there!!

So I covered it up with electrical tape...anybody just have a hole there with no covering (Wax or plug)?

 

sounds like old underbody coating just filling the hole. just grab an old candle or a grommet and put it in. lol picture helped alot cuz i thought it said fuel rails, mid u if i could read i wouldnt have gotten confused in the first place :-p

 

Hehe =) Or....break out the Vaseline...

Does yours have that there too?