I have a 2011 Equinox. Every time it rains and I park it, there is a sizzling noise coming from under the hood. It's intermittent sizzling for about 10 minutes and then it stops making the noise. It's like when you are cooking and test a pan to see if it's hot by dropping a drop of water in it, it's that type of loud sizzle. I've never had a vehicle do this before, it doesn't seem normal. Is a part missing that would stop water from running onto the engine? I called the dealer, they said it could happen if you drive through a puddle and it splashes up to the engine from below. It wasn't raining enough to form puddles, the sizzling was from the actual rain running off of it. Anyone else have this problem? Is it dangerous? Thanks.