I just got done cleaning under the hood with water. Wrapped the battery and fuse box with a garbage bag and turned on the engine. Sprayed (more of a mist) with water, brushed, then sprayed again. Here's the issue, right after, it started to smell really funky (gassy/oil smell). Is that normal? It's a little concerning because it's the first time I started the car since replacing the intake and valve gaskets. I'm thinking it's just all the crap that came off but I'm not sure...