The drivebelt(s) is/are found in front of the engine and has a significant role to play in the way the vehicle functions and its parts. The drivebelts are likely to fail with time as a result of their operation, and the material composition and thus should be checked and adjusted after some time to avoid serious engine damage. Four-cylinder models are furnished with one self-adjusting serpentine drivebelt, which provides motion to all parts of the accessory and five-cylinder models have two serpentine drivebelts in different applications. Checking, engine off, find the drivebelt, inspect both sides, looking for cracks, separation, and fraying and glazing, and twist the belt to examine the underside. The underside ribs must be equally deep, and the tensioner makes the adjustment of the belt automatically. To replace the four-cylinder engine, apply tension to the tensioner of the timing belt-equipped engine clockwisely, and loosen the timing belt by taking it out of the other auxiliary parts. Pass the new belt over the pulleys and make sure that it fits correctly. With five-cylinder engines, take out the front driver side part of the inner fender liner, and then clockwise turn the tensioner to position it in place as you change the air conditioning compressor outer belt and the alternator and water pump inner belt making sure they fit well in the pulley grooves. Replacing tensioners as a mechanic will mean that the drivebelt has to be removed after which the tensioner has to be removed and then installed, and it is the opposite of the removal process and proper torque on the mounting bolts has to be ensured.