When inspecting a stretch belt, measure the depths of the groove. This video is sponsored by Continental.
Stretch belts can last 100,000 miles or more depending on the vehicle’s environment and where it is mounted.
When a stretch belt exceeds wear specifications, it’s no longer able to grip the pulleys and will start slipping.
Andrew Markel talks stretch belts, and how they manage to keep working without a tensioner. Sponsored by Dayco.
If you see a belt on a late-model Subaru that does not have an automatic tensioner and runs between only two or three components, it’s probably a stretch belt. These types of belts typically are used to turn the A/C compressor on the 2.5L four-cylinder engine in 2008 and later models.