Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMAZDA20066 I, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL SYSTEM (L3, AJ)FUEL PUMP UNIT REMOVAL/INSTALLATIONPLASTIC FUEL HOSE INSTALLATION NOTE

2006 Mazda 6 i, 4D Sedan, Automatic

Plastic Fuel Hose Installation Note

2006 Mazda 6 i, 4D Sedan, AutomaticSECTION Plastic Fuel Hose Installation Note

NOTE:

A checker tab is integrated with quick release connector for new plastic fuel hoses. The checker tab will be released from the quick release connector after it is completely engaged with the fuel pipe.

Inspect the, fuel pump unit sealing surface for damage arid deformation, and replace if necessary.
- If the quick release connector O-ring is damaged, replace the plastic fuel hose.
  
  Fig 1: Plastic Fuel Hose Quick Release Connector
  Courtesy of MAZDA MOTORS CORP.
Slightly apply clean engine oil to the sealing surface of the fuel pump unit.
Align the fuel pipe on the fuel pump unit and quick release connector so that the tabs of the retainer are correctly fitted into the quick release connector. Push the quick release connector straight into the retainer until a click is heard.
Lightly pull and push the quick release connector a few times by hand and verify that it can move 2.0-3.0 mm {0.08-0.11 in} and it is connected securely.

Fig 2: Aligning Plastic Hose With Quick Release Connector
Courtesy of MAZDA MOTORS CORP.
- If the quick release connector does not move at all, verify that O-ring is not damaged and slipped, and reconnect the quick release connector.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.