Situated in front of the engine, drivebelts are vital elements that need regular scrutiny and correction to prevent possible destruction. These are the ones which run the alternator, power steering pump, air conditioning compressor (if equipped), and water pump with two belts for each. While inspecting these belts for cracks, gaps in between them, thread separation, glazing or rib uniformity when the engine is off, it is important to visually observe their condition. Tension can be determined by applying a downward force of 20 pounds at the belt's midpoint when one wants to measure its deflection. In order to achieve correct tension levels, pivot bolds should be loosened and adjuster used for shifting parts. New belts are put into position after removal of adjustment, sliding off worn ones and installing new ones accordingly. V6 models have a single belt held under tension by an automatic spring-loaded adjuster. Inspections are done similarly because if the tensioner arm moves beyond marks set due to stretching belts it means they have to be replaced instead. For V6 models on the other hand, replacing this drivebelt entails identifying its routing system as well as rotating tensioner pulley arm until old belt is removed thereby allowing installation of new one respectively. Lastly, remove drivebelt followed by removal of tensioner mounting bolt before replacing it using reverse procedure including installing new ones into place.