How to Easily Wash an Engine Bay




Introduction: How to Easily Wash an Engine Bay

About: Car enthusiast YouTuber creating helpful tutorial videos on both repairs and customizations. Be sure to hit that SUBSCRIBE or FOLLOW button!

Video tutorial on how to wash dirt, grease, or grim away from your engine bay. Make sure your engine is cool when doing this procedure. This is the same procedure used by vehicle dealership and many detailers. Many people do not realize but your engine is always exposed to moisture or water, especially in the rain or snow. This can be applied to both gasoline and diesel engines.

Tools/Supplies Needed:

  • soap (used in the video is Spray Nine)
  • plastic bags
  • water
  • pressure washer or hose
  • brush
  • air compressor
  • clean cloth

Step 1:

First ensure that your engine is cool, this procedure should not be done with the engine running or warm. Have your vehicle parked in a shaded area which will reduce the chance of the soap drying. Using a plastic bag, cover up any high risk components such as the alternator, fuse panel, coil pack, and distributor. Using a degreasing soap, spray down the engine, then allow the soap to soak for about five minutes, depending on how dirty the engine is.

Step 2:

Using a pressure washer or hose, set it to the widest fan spray. Be careful around the areas you have bagged off and any areas where your engine fluids are added. Continue to rinse the engine off, washing away any dirt and debris. Rinse thoroughly to remove any soap residue. Once finished, inspect for any dirt which may be remaining. If there is dirt remaining you can spray the engine again with the soap and use a brush if needed to agitate the built up dirt. Again rinse thoroughly.

Step 3:

Once satisfied, use compressed air to blow away any water residue which will help dry the engine. Remove the plastic bags, and clean any high risk areas by hand using a damp toothbrush and cloth.

Step 4:

Leave the hood open, park the vehicle in the sun and allow it to dry. Once dry, your vehicle is ready to use. As an additional step if you wish, oil spray can be applied to help protect the metals from rust or corrosion.

Stay up to date with my latest tutorials, don't forget to FOLLOW my profile and be sure to check out my YOUTUBE page as well for all your DIY needs.

Before and After Contest 2017

Participated in the
Before and After Contest 2017

Be the First to Share


    • First Time Author Contest

      First Time Author Contest
    • Build a Tool Contest

      Build a Tool Contest
    • Meatless Challenge

      Meatless Challenge



    7 months ago on Introduction

    As a DIYer- and a lady - with autos- I know very little when it concerns under the hood- thus the reason for the term DIY…
    - after watching this video- I had to watch it several times and my end thought is- this isn’t for a person who doesn’t mess with anything under the hood!
    You zoom through the clip thinking that we automatically know where to be careful with the spray. the fuse box can b pretty simple if u poke around your car but covering air intake and air filter locations(?) ummmm- no idea -and also having to take off valve cover for spark plugs if wet?? Oh boy- now I know for certain that that’s not for a pencil pushing office guy- or a lady DIYer who doesn’t work on her car.
    Why don’t you make a video that’s for a DIYer who’s not familiar with what and where these items are? Obviously all cars are different but u can give an idea of the area maybe?
    Your video assured me that I’m going to need to read my owners Manuel first to find these locations. It looks like your video can make a mountain of trouble from a simple engine clean. U also ought to put in your clips that if someone cleans their engine or works on anything else, using one of your video’s, that you are not responsible lf they end up having to pay hundreds of $$ to have their car fixed at a repair shop. U could easily get sued. :(.
    I didn’t even watch the last 1/4 of it because it’s not a well explained and videoed clip for someone who doesn’t open their hood for anything other than changing fluids or jumping their auto.
    I don’t mean to be a sourpus..cranky lady DIYer- I can gut and rehab a house all on my own and I’m all over doing it myself- but your video is not for a beginner with cars.
    With that cranky msg- Hope your holiday is filled with love of family. And Santa brings u a money tree.
    Kind regards🌲


    5 years ago

    If you want to go that extra step, you can even use a light coat of no-touch tire shine on the engine and engine bay. It will look like new after that. JMHO


    Reply 5 years ago

    Great tip, thank you for sharing. I used 303 areospace on my other engine bay cleaning tutorial. Gives a really mild shine, similar to what is found on new plastic and no residue is left on the surface. I haven't touched my engine bay since I've cleaned it and it appears to help repel dirt/dust too.