Belt Tension & Accessory Drive

V-belt and serpentine belt tension reference. Adjust with the engine off and keys out — belts and pulleys can pinch fingers.

Belt TypeTension CheckTarget
V-belt (deflection)Press midway on the longest span (~10 lb)~1/2" per foot of span
V-belt (gauge)Belt-tension gauge if availablePer manufacturer (typ. 90–150 lb)
Serpentine (1979+)Automatic tensionerWear indicator within range

Register free to view the full belt reference including a belt-noise diagnosis table and accessory-drive guidance.