Low generator output and noise can be a sign if the belts are loose.

• A. False
• B. True
• C. Not related
• D. Only when new

Answer: (B)

Belt tension on the accessory drive directly affects the alternator’s ability to spin at the proper speed. A loose belt can slip on the pulleys, causing the alternator to under-rotate and produce lower electrical output. That slipping also creates a squealing or chirping noise as the belt slides across the pulley under load or at startup. Together, low generator output and audible belt slip are classic signs of a loose drive belt, so the statement is true. If you diagnose this, inspect belt tension, alignment, and the condition of the belt and tensioner, though other causes like a worn belt or bad tensioner can also produce similar symptoms.