Always check serpentine and V-belts for looseness and their overall condition. Replace V-belts when cracked, frayed, glazed or showing signs of excessive wear. Noise in the belt system is a sign of wear and the smell of burnt rubber can indicate a slipping belt. When changing a serpentine belt, it is important to check all the components in the serpentine system as tensioners and pulleys wear at the same rate as the belt and should be inspected.
Typical serpentine belt replacement is 60,000 to 90,000 miles. Typical V-belt replacement is 40,000 to 50,000 miles. Replace timing belt per interval specified in the owner’s manual.
“Why risk being stranded when a bad belt can be diagnosed with simple routine maintenance?” asked Rich White, executive director, Car Care Council. “Inspecting and replacing belts as specified in your owner’s manual will help you avoid the hassle and expense of a sudden breakdown.”
The Car Care Council's free 80-page Car Care Guide features several pages of information on the functionality of belts and when to replace them. Available in English and Spanish, the popular guide fits easily in a glove box and can be ordered by visiting www.carcare.org/car-care-guide.
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