The Victoria Napolitano Bookstore THE DRIVING COMPANY WORKBOOK | Page 20

We have all seen the motorist who ventures into the water accumulated under an overpass after a storm only to find it is roof high. When you encounter wa- ter, get out and check how deep it is before ventur- ing across. The deeper it gets, the less traction you get because the tires and vehicle body provide some floatation because they are filled with air. You may need to put the waders on and walk out there to see if there are any deep holes or big rocks that could damage your vehicle. speed to develop a bow wave in front of the vehi- cle in order to keep the engine compartment in the trough of the wave. This is a myth. Slow is the way to go! If you watch the engine compartment while driving through deep water, you will see that water comes through the grill and swirls around. There is no “trough.” If the water has a swift current, then be especially careful. It is easier than you think to get swept down- stream. When in doubt, find another way to cross or don’t cross it at all. Hot vehicle parts like wheel bearings placed in cool water will create a vacuum caused by the change in temperature. This will cause perfectly good seals to suck in water. If your area requires frequent wa- ter crossing, then be sure your maintenance people monitor things like bearings, differentials, and trans- fer case to keep them free of moisture. Know where your vehicle is vulnerable to drawing in water. Your differentials have vents, your engine has an air intake, and your transmission and transfer case have vents. Some people advocate getting up enough You can ride the brakes a little with your left foot as you exit the water to expedite the drying process. Your brakes may not work properly until they are dry. WATER TheDrivingCompany.com 17