LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Acura >> 2012 >> ZDX >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Supply System >> Fuel Line/Quick-Connect Fitting Installation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel Line/Quick-Connect Fitting Installation

NOTE: Before you work on the fuel lines and fittings, read the Fuel Line/Quick-Connect Fitting Precautions (see FUEL LINE/QUICK-CONNECT FITTING PRECAUTIONS  ).
  1. Check the contact area (A) of the line (B) for dirt or damage, and clean it if needed.
    Fig 1: Checking Contact Area Of Line For Dirt Or Damage
    G08072959Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Insert a new retainer (A) into the connector (B) if the retainer is damaged, or after:
    • replacing the fuel rail.
    • replacing the fuel feed line.
    • replacing the fuel pump.
    • replacing the fuel filter.
    • replacing the EVAP canister.
    • replacing the EVAP purge line.
    • replacing the fuel fill pipe.
    • replacing the fuel tank.
    • removing the retainer from the fuel line.

      When you replace a retainer, use the same size and manufacturer as the original retainer (see FUEL LINE/QUICK-CONNECT FITTING PRECAUTIONS  ).

      Fig 2: Inserting Retainer Into Connector
      G08072960Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Before connecting a new fuel line/quick-connect fitting assembly (A), remove the old retainer (B) from the mating line.
    Fig 3: Identifying Fuel Tube, Quick-Connect Fitting Assembly And Retainer Components (1 Of 3)
    G08072961Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 4: Identifying Fuel Tube, Quick-Connect Fitting Assembly And Retainer Components (2 Of 3)
    G08072962Courtesy of AMERICAN HONDA MOTOR CO., INC.
    Fig 5: Identifying Fuel Tube, Quick-Connect Fitting Assembly And Retainer Components (3 Of 3)
    G08072963Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Align the quick-connect fittings with the line (A), and align the retainer locking tabs (B) with the connector grooves (C). Then press the quick-connect fittings onto the line until both retainer tabs lock with a clicking sound.
    NOTE: If it is hard to connect, put a small amount of new engine oil on the line end.

    Connection with new retainer 

    Fig 6: Aligning Retainer Locking Tabs With Connector Grooves (Connection With Retainer)
    G08072964Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Connection to new fuel line 

    Fig 7: Aligning Retainer Locking Tabs With Connector Grooves (Connection To Fuel Line)
    G08072965Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Reconnection to existing retainer 

    Fig 8: Aligning Retainer Locking Tabs With Connector Grooves (Reconnection To Existing Retainer)
    G08072966Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. When you are reconnecting with the existing retainer, make sure the connection is secure and the tabs (A) are firmly locked into place; check visually and also by pulling the connector (B). When you are replacing the fuel line with a new one, make sure you remove the ring pull (C) upwards after you confirm the connection is secure.
    NOTE: Before you remove the ring pull, make sure the fuel line connection is secure. If the connection is not secure, the ring pull could break when you try to remove it.

    Reconnection to existing retainer 

    Fig 9: Checking Fuel Line Connection
    G08072967Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Connection to new fuel line 

    Fig 10: Connecting Connection To Fuel Line
    G08072968Courtesy of AMERICAN HONDA MOTOR CO., INC.
  6. Reconnect the negative cable to the battery, and turn the ignition switch to ON (II)/press the engine start/stop button to select the ON mode (but do not operate the starter motor). The fuel pump runs for about 2 seconds, and fuel pressure rises. Repeat this two or three times, then make sure there are no fuel leaks.
  7. If equipped, install the quick-connect fitting cover. Set the groove of the cover (A) on the fuel line (B) as shown in illustration, then install it. Make sure the cover is firmly locked in place.
    Fig 11: Installing Quick-Connect Fitting Cover
    G08072969Courtesy of AMERICAN HONDA MOTOR CO., INC.