4 Symptoms of a Bad Rocker Arm:
1. Clicking or Ticking Noises
2. Misfires or Stalling
3. Check Engine Light
4. Physical Deterioration
The most common symptom of a bad rocker arm is clicking or ticking noises coming from the cylinder head of the engine. It can also cause misfires or a stalling engine together with a check engine light on your dashboard.