Series 50 – Section 25.1 Aerated Fuel

Section 25.1
Aerated Fuel

To determine if aerated fuel is causing lack of power, perform the following steps:‪

1. Test for aerated fuel; refer to "23.3 Aerated Fuel" .
2. Visually check to see if air bubbles are rising to the surface of the fuel within the container.
   1. If air bubbles are not present, shut down engine, check for high fuel pressure; refer to "25.2 High Fuel Pressure" .
   2. If air bubbles are present, shut down engine; refer to "25.1.1 Aerated Fuel Resolution" .

Section 25.1.1
Aerated Fuel Resolution

Perform the following to resolve aerated fuel:‪

1. Perform aerated fuel repair; refer to "23.3.1 Aerated Fuel Resolution" .
2. Verify aerated fuel resolution; refer to "25.1.1.1 Test the Engine with Aerated Fuel Resolution" .

Section 25.1.1.1
Test the Engine with Aerated Fuel Resolution

Perform the following to determine if aerated fuel resolution resolved lack of power condition:‪

1. Start and run the engine.
2. Run the engine at idle with a no-load for approximately 5 minutes, allowing the engine coolant to reach normal operating range.
3. Test drive the vehicle to ensure lack of power has been resolved.
   1. If no lack of power occurred during the test drive, no further troubleshooting is required. Shut the engine down.
   2. If lack of power occurred during the test drive, shut the engine down. Check for high fuel pressure; refer to "25.2 High Fuel Pressure" .