![]() Aiming pressurized jets of water at one part of your engine for a sustained amount of time is too risky. Never hold the pressure washer in one fixed position when you’re car pressure washing under the hood. High pressure water jets in close proximity to the engine are damaging to sensitive parts. It creates less pressure and is more suitable for engine cleaning. Choose a wider nozzle over one with a narrow tip. Using the correct nozzle makes a big difference, too. Otherwise high-pressure jets are going to force water into all the inaccessible nooks and crevices in the engine and can also get under seals etc. Make sure you wash your engine on a lower setting. For example, a high PSI setting is fine for cleaning down your driveway but not suitable for pressure washing your car engine. The higher the PSI (pounds per square inch) the greater the force of the water. Pressure washers have different power settings to suit different jobs. Adjust the Water Pressure Setting and Nozzle Don’t forget to remove all these temporary coverings once you have finished pressure washing your car engine. Extra-long rubber bands are ideal for securing bags in place. To be on the safe side, use plastic wrap or a plastic bag to cover the distributor, alternator and other electrical components. Also, it is possible that existing seals around caps and components can wear and fail over time. Older vehicles, however, may not have the same protection. Fortunately, these days most modern cars have sealed-up electronics and components. Prep and protect the engine bay before using a pressure washer. Use Plastic Wrap or Bags to Protect Sensitive Engine Parts Adhering to engine detailing basics like this is key to protecting the performance of your vehicle. Give your engine time to cool down before you reach for the power washer. You could end up causing cracks in some of the components due to the abrupt change in temperature. Don’t Power Wash a Hot Engineĭirecting cold, pressurized water onto a hot engine is asking for trouble. Once you are familiar with the power washer instructions and cleaning steps, take a look at our tips for best results. However, if you don’t use it correctly, you risk damaging sensitive parts of the engine that may be expensive to fix. A pressure washer is a powerful piece of equipment that works brilliantly at dislodging tough dirt and grime. ![]() Make sure you know how to use a pressure washer before you direct high-pressure jets of water at your engine. 7 Tips For Pressure Washing Your Car Engine Being fully aware of the pros and cons is important before you begin work on cleaning your engine bay. This can also result in greasy, polluted runoff that ends up on your driveway or the street. Another downside is that a pressure washer uses a lot of water. However, the main disadvantage is possible issues with your engine if you force water into places that are susceptible to water damage. ![]() Moreover, it cuts out the dirty work of using cleaning rags, too. It also requires very little effort on your part because the high-pressure jets of water do the work. There are several benefits to using a pressure washer. Done right, a clean engine will not only look good but may also help the car to run better too. However, the big question is can you pressure wash your car engine without damaging it? Yes, you can, providing you are extremely careful when working under the hood with all that water. Pressure washing your car engine is one way to get it looking shiny and new again. Engine oil, grease and road grime will easily build up over time under the hood of your car.
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