Air Pump
- Accelerate engine to approximately 1500 RPM and observe airflow from hoses. If airflow increases as engine is accelerated, pump is operating properly. If airflow does not increase, or is not present, proceed to next step.
- Check for proper pump belt tension, leaky valves, seized pump, improperly routed hoses or disconnected hoses.
NOTE:
It is normal for air pump to emit some noise, especially during deceleration, when air is exhausted into atmosphere.