heavy chemical is not necessary... even simple green isnt to be honest. mix water and abit of rubbing alchohol and it will cut through any grime in ur engine bay.

 

ok now with what u said here is very true. i would edit ur post and explan what to watch for. because right now its like saying use this product and how too.

change it to '' the proper way to wash and clean your engine bay area'' then your golden. nice find

 

Alright just for you. to the op make sure the coil packs are on tight i got some water in them and had some nasty misfires and didn't know why till I went to check the plugs.