Inspect the fuel connector. Look for burrs or deformation around the inlet and outlet sides of the connector.
Check the edge filter for signs of plugging or material contamination. Do not reuse a high-pressure fuel connector if debris is present.
Check the a-ring for tearing or deterioration. Replace as needed.
Inspect the outlet sealing surface of the high-pressure connector for wear, an uneven seating surface, or signs
of leakage.
When a high-pressure fuel leak is present, small lines or cuts in the connector will be eroded into the seating surface.
If this failure mode is observed, the injector must be inspected for damage. Refer to Procedure 006-026 in Section 6.
Inspect the fuel connector cylinder head anti-rotation slot for damage (1 ).
Inspect the anti-rotation slot for rotation (2).
Severe rotation (more than 180 degrees) could possibly lead to excessive leakage from the injector/fuel connector
mating surface.
The cylinder head could possibly need to be replaced if high injector drain flow leakage is due to severe rotation
of the fuel connector cylinder head anti-rotation slot.
