How Do Car Dealers Clean Engine Bays?

Materials Needed

Degreaser
Water hose
Scrub brush
Pressure washer (optional)
Detailing spray

Step-by-Step Instructions

Prepare the engine bay. Allow the engine to cool completely. Remove the battery terminals and any other electrical components that could be damaged by water. Cover the alternator and distributor with plastic bags.
Apply degreaser. Spray the degreaser liberally over the entire engine bay. Allow it to sit for a few minutes to break down the dirt and grime.
Rinse the engine bay. Use a water hose to rinse the degreaser from the engine bay. Start from the top and work your way down. Be sure to rinse the degreaser from all of the nooks and crannies.
Scrub the engine bay. Use a scrub brush to scrub the engine bay. Be sure to get into all of the nooks and crannies. Rinse the engine bay again with water.
Pressure wash the engine bay (optional). If you have a pressure washer, you can use it to remove any stubborn dirt or grime. Be sure to use a low pressure setting and hold the nozzle at least a foot away from the engine bay.
Dry the engine bay. Use a clean towel to dry the engine bay. You can also use a leaf blower to speed up the drying process.
Apply detailing spray. Apply a detailing spray to the engine bay to protect it from dirt and grime. This will also give the engine bay a nice shine.

Tips

Be sure to wear gloves and eye protection when cleaning the engine bay.
Do not use harsh chemicals or cleaners on the engine bay.
If you have any electrical components that cannot be removed, cover them with plastic bags before spraying the degreaser.
Rinse the engine bay thoroughly to remove all of the degreaser.
Dry the engine bay completely to prevent rust.
Apply a detailing spray to the engine bay to protect it from dirt and grime.

Conclusion

Cleaning your engine bay is a relatively simple task that can help to improve the performance and appearance of your car. By following these simple steps, you can keep your engine bay looking its best.