
First and foremost, you need to make sure that your engine is completely cooled. It’s also a good idea to do the job on a warm day so that any moisture can evaporate quickly. Once you pop the hood, you’ll need to remove any caps and covers. You can clean these out separately.
To keep electrical components safe, cover them with plastic. After the work area is prepared, you can get to cleaning. You can use any household degreaser to spray the engine bay. If there are some stubborn spots, use a small synthetic brush to scrub them away. Then, simply rinse the degreaser off with water and wipe away any excess moisture with a towel until its dry.