Do Not Skip This Step. Taking a few minutes to wrap these components will allow you a stress free engine washing experience. Don’t worry about the battery or anything in plastic or metal casings that are already protected. Now that you have all the scary stuff out of the way. Let’s get to the cleaning.
What To Use To Clean Your Car Engine
- 2 Types of Degreasing Products (Solvent and Water Based)
- Air Compressor or A Cloth and Elbow grease to dry the car engine
- Pressure Washer or Water Hose
- Nylon Brush
- Drip Pans
- Knee Pads (Optional)
- Wire Brush
- Plastic Bag or Aluminum Foil
10 Steps: How to Clean A Car Engine
Step 1: Protect Electrical Wires & Other Important Components
Using a plastic bag or aluminum foil, start by covering all your electrical wires. If the wires or wire casing are dirty, you can clean them by hand once you remove the majority of water from the engine.
Do the same with your alternator, car alarms, and all exposed filters and the air intake.
If necessary use painters tape or twist ties to secure the plastic. Also, check your vehicle’s user manual for electronic parts you may not see when you first look into the engine, especially anything digital or connects to the digital parts of your car.
Step 2: Place The Drip Pan Underneath Your Car
Allowing harmful chemicals to flow into the storm drain is not only bad for the environment it is illegal. To help prevent this place a matt or drip pan under the car to collect and soak up chemicals from the engine and the cleaners.
Keep in mind that the pan will have to be the approximate size of the engine itself. The pan will do no good if the water and chemicals don’t fall into it. P
lease note that collecting the water is only imperative when using solvent based degreasers with oil derivatives. Water and citrus based degreasers are designed to use microscopic amounts of chemicals that are safe.
Step 3: Brush Away Loose Dirt & Debris
Before you reach for the cleaner, Use a wire brush and scrub the exposed surface of the engine.
Using the wire brush will start to break away larger debris from the engine, especially when saturating the grime will only cause more mess.
You know those globs that just spread once wet. Get rid of these now with a vigorous scrub, but don’t be too forceful so that you don’t leave scratches.
Step 4: Apply Engine Cleaner and Let Soak
Spray the degreaser on all the exposed parts of the engines. Be generous and make sure that you use enough cleaner to remove the dirt.
Pay attention to the part of the engine that you have covered. You don’t want the degreaser or water to pool in the plastic that covers it so make sure to avoid these areas.
Once you have the engine sprayed, let it soak in for at least 10 minutes. These steps are the most effect portion of how to clean a car engine
Soaking the surface allows the degreaser to work through the grime before you move on to the next step.
Step 5: Agitate The Remaining Dirt
Once the degreaser is thoroughly soaked in, use the nylon brush this time and scrub the surface. Make sure to rub the dirt thoroughly, so that the degreaser lifts the remaining grime from the surface.
Removing all the dirt will take a few minutes and a good amount of elbow grease so be patient. I like using the circle technique to keep the grime moving around the surface.
Step 6: Rinse The Engine
Turn on the water hose and clean the degreaser completely off the engine.
If you are using a garden hose, place your thumb over half the opening to create a little pressure to help you remove the cleaner and dirt. (Take note that if you are using a pressure washer you’ll want to set the pressure low so that you don’t damage any parts of the engine.)
Whether you are using a garden hose or pressure washer, be sure to stay aware of the plastic or foil you have used.
Make sure that the water doesn’t pull and the pressure doesn’t knock the covering off before you can get the engine dried. If you look at the engine, and it’s still dirtier than you would like to repeat steps 3 through 6.
If you are satisfied with the level of cleanliness, move onto step 7.
Step 7: Dry The Engine
Take a towel and dab up any pools of water that may have formed on your plastic or aluminum foil. Then, turn on your air compressor and using your hose, spray the engine dry.
Once again be careful of the wrapped areas. As an alternative to the air compressor, use a towel to hand dry the surfaces. It will take a little longer, but it will get the job done.
Step 8: Remove Plastic Bags & Dispose of Water
Once the engine is dry and you have checked that there is no water in or on the plastic covering, you can remove the plastic or aluminum from your wires and alternators, etc.
Give the components a once over with your dry rag, or your air compressor on very, very, low pressure. Throw the bags and aluminum away and appropriately dispose of the water in the drip pan or mat.
Again, if the cleaner is water or citrus based you can just throw it in the yard or ditch.
If you are using a Solvent based cleaner, you may have to dispose of it with other chemical waste in a proper manner. You can consult your city ordinance for how to do that.
Step 9: Turn Engine On
To remove any excess water, you may have missed, turn the engine on for a few minutes to help evaporate the remaining water.
The engine does not have to be completely dry before you start it, but remove all the plastic or aluminum foil first!
Step 10: Step Back & Enjoy Your Work
Finally, take a second to enjoy the beauty that your elbow grease has just produced. So many times we get caught up in doing things to impress others, this time, you can take the moment for you.
Make Cleaning Your Engine Easier
Quick Engine Cleaning Tips
- Try warming up the car to make cleaning the engine easier. Heating up the engine will help to loosen up some of the stuck on oil and other components that liquefy with heat.
- Don’t leave it on while cleaning, though, and don’t warm it up for too long. A hot engine could not only cause injury, but it will also evaporate the cleaner.
- Depending on the age of your car, most engines warm up within 5 minutes. I wouldn’t suggest any longer than that. If you think that you may have left it on too long, place your hand over, not on, the engine. If the engine is hot it was on too long, let it cool down before you start to clean.
- Use a smaller nylon brush, spray cleaner directly onto brush to get to harder to reach areas.
- Use solvent based degreaser for incredibly filthy engines.
- Jack the car up when cleaning the bottom of the engine, but be sure that the car is on a steady flat surface.
- Since you’re already there, think about removing battery cables and give them a scrub. Keeping these cables clean will help extend the life of your car’s battery.
How To Clean A Car Engine Without Water
Now you are a professional (well, kinda). There are so many car owners who don’t know how to clean a car engine (or wheels, or tires, etc.) Your car’s engine is one of the most expensive parts of your vehicle and as you can see is as easy to clean as the interior of the car.
Engine cleaning will keep you lifting the hood with a smile, help your engine last longer and keep the resale value at it’s peak. Make sure to let me know how amazing your engine looks after trying my simple steps. Thanks for reading. Until next time.