Do engine belts and hoses need to be replaced except when broken?
A. Belts and hoses do wear out… most manufacturers suggest replacing hoses every 4 years and V-Belts every 36,000 miles or 3 years broken or not. If you have Serpentine belts which are thinner, more flexible, run cooler and last longer than V-Belts (they cost about twice as much to replace) their lifespan is about 5 years or 50,000 miles.