ASE G1 Auto Maintenance and Light RepairEngine SystemsEasy
A technician is performing a routine maintenance check on a vehicle and observes that the serpentine belt is glazed and cracked. What is the most appropriate action the technician should recommend?
- AReplace the serpentine belt
- BClean the belt with a degreaser
- CAdjust the belt tension
- DLubricate the belt with belt dressing
Show answer & explanationAnswer & explanation
Correct answer: A. Replace the serpentine belt
Glazing and cracking are signs of a worn-out serpentine belt that has lost its flexibility and grip. Cleaning, adjusting, or lubricating will not restore its integrity and could lead to belt failure.
Why the other options are wrong
- B. Cleaning a glazed and cracked belt will not restore its integrity or prevent failure.
- C. Adjusting tension won't fix cracks or glazing; it might temporarily mask a problem but won't solve it.
- D. Lubricating a serpentine belt is generally not recommended as it can cause slippage and further damage.
Serpentine Belt Wear Signs
Signs of a worn serpentine belt include glazing (shiny surface), cracking, fraying, and missing ribs, all indicating a loss of material integrity and requiring replacement.
- Glazing reduces friction and grip.
- Cracks indicate material fatigue.
- Worn belts can slip or break, stopping accessories.
Memory trick: Cracked and glazed, the belt's days are phased.