I tried to do good, and replaced ALL my vacuum lines with some cool blue ones that I got from Toyota. Everything was fine that day. SupraHero said "Don't those MELT? It gets hot under the hoods of these cars." Well I guess he was right. My vacumm reading went from -71 were it usually runs to -1 or 0! Also now when I get on it, I hear a high pitched squeel that wasn't there before. So I guess I get to REDO all my vacuum lines AGAIN! I hate doing things twice, but three times would really suck, so what kind do I need to get that won't melt? Will it hurt to drive it at 0 vaccum?