Toyota 90080-91055 Belt, V

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The alternator and air conditioning compressor drive belts, also known as V-ribbed belts or fan belts, are located at the right end of the engine. The condition and adjustment of the alternator belt are crucial for the engine's operation. Over time, drive belts stretch and deteriorate, so they need to be inspected periodically. The number of belts used depends on the accessories installed, with one belt transmitting power to the alternator and air conditioning. If the vehicle has power steering, the pump is driven by its own belt. To inspect the belts, open the hood with the engine off and check for separation, cracking, fraying, glazing, and wear. If any issues are found, the belt should be replaced. Tension can be checked using a belt tension gauge or the rule of thumb method. If adjustment is necessary, the alternator pivot bolt and adjusting bolt can be loosened, and the power steering pump belt can be adjusted by loosening the adjustment bolt. When replacing a belt, it is recommended to replace both belts at the same time and ensure proper fit in the pulley grooves.