Cleaning under the hood

I have been wanting to really clean up the motor bay so it looks nice and new but what exactly do I have to do to clean under there? Would anyone care to do a write up if they have some spare time? Would really appreciate it!

what are you looking to clean the fire wall or the engine its self

It is not a write up but some degreaser,armor all and brake cleaner
(do not forget some logic)should do the job

I want to clean everything. Really I suppose the better question is what should I use to clean where and what should I not get on what (Like, don't get water on a sensor). If any of that made sense. Doesn't degreaser require water to get it off?

spray on engine degreaser heavily have a hose near by
than let sit for 30 seconds THAN hose it ALL off be sure to spray of the car to not leave engine degease on your paint! anyway clean engine FTW

Err, I thought you were never supposed to just spray under the hood as it could mess up the wiring, get into places it should be, etc?

the degreaser is supposed to sit for 10 minutes before you hose it off.

wrap your alternator with a plastic bag. try and cover your engine grounds with a little tape or something. the wiring is insulated against water and other stuff,but work around them anyway. if you must clean everything,just wrap a little cellophane around the wiring connections. get a long handle brush with real long bristles and go to work! dont forget to cover the coil packs and its mount. then cover the rubber and plastic parts with a good protectant. i like meguirs stuff. smells good too! and not at all slimey.

I just clean all the engine parts with carb cleaner, WD40 for black metal and plastic, and a wet soapy rag for paint and everything else. The engine will look pretty clean if you get everything within reach.

I use the degreaser on everything under the hood except the alternator, but I don't bag it, I just avoid it. Same goes for the hose-down when it's all done. I just avoid the alternator and spray very lightly on the coilpacks.