Best way to clean engine bay?

[1badassX5]

well i work at a dealership and the detailer fires up the pressure washer and washes the whole engine, and don't get me wrong at least we have engine covers but on subarus the engine is bare and no covers. It seems to work for them... i pressurized wash my e53 about 2-4 times in the past.

[hayaku]

its okay and very normal to spray the engine compartment... alot of people have already stated how they do it, but i'll add what i haven't seen yet:

- make sure the engine is NOT hot. warm is ok. cool is best tho.
- if you want to be sure, use aluminum foil and wrap the electonic boxes. alum foil will not let the water through to the electronics underneath
- if you have a pressure washer, make sure its not set to strip anything... safest bet is if you can spray your hand without hurting it, you can spray the car at that power level... too strong and it will damage paint, knock loose connections, etc...