Washing engine compartment
hey Tj wash it with the engine running and dont spray the electrical connections directly and the air box of course. also see my thread about overheating, you might want to clean that rad really good.
https://www.jk-forum.com/forums/stock-jk-tech-12/over-heating-33463/
this is what my engine bay looked like

and my radiator, after trying to wash it 4times while in the jeep with fan shroud still on it
https://www.jk-forum.com/forums/stock-jk-tech-12/over-heating-33463/
this is what my engine bay looked like

and my radiator, after trying to wash it 4times while in the jeep with fan shroud still on it



Just don't aim the hose in the air intake and you should be fine.