Make sure to check and update your drivebelt(s) regularly, because they can cause big problems when they break down and are more likely to fail over time. Acura and Honda models starting in 2003 run on a single serpentine drivebelt that supplies power to their alternator, air conditioners, and steering systems. Keep these checks easy: Turn off the engine, open the hood, find any broken areas, loose pieces, or signs of wear that you see with the naked eye. Measure the deflection in the middle of the drivebelt by pressing down with 20 pounds of force in between the pulleys. Deflection should be around 1/4-inch for length ranges of 7 to 11 inches and around 1/2-inch for 12 to 16 inches when changing single belts on power steering pumps. The automatic tensioning system takes care of belt tightness. We must change the belt when our wear indicator shows numbers beyond what it should. To put a new drivebelt in, remove the negative cable from the battery, turn the automatic tensioner counterclockwise to release it, take out the worn belt, and set the new one between the pulleys, making sure it's straight. To easily change the automatic tensioner, disconnect the car's battery negative cable, take off the drivebelt, unscrew the bolts that hold the tensioner, and put in the new assembly by following the steps in reverse, all while reinstalling the drivebelt at the end.