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Home >> Honda >> 2019 >> HR-V EX, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System / Engine Mechanical - Service, Testing And Troubleshooting >> Inspection >> Breather Line and Suction Line Inspection (2WD: KA/KC) >> Inspection

Breather Line and Suction Line Inspection (2WD: KA/KC): Inspection

  1. Center Console - Remove
  2. Shift Lever - Remove

    NOTE:  The shift cable is attached to the shift lever.

  3. Access Panel - Remove
    GHH435225Courtesy of HONDA, U.S.A., INC.
    		 1. Remove the access panel (A) from the floor.
  4. Breather Line and Suction Line - Inspect
    GHH435226Courtesy of HONDA, U.S.A., INC.
    		 1. Disconnect the quick-connect fitting (A) from the fuel tank unit

    , and connect a vacuum pump/gauge, 0-30 inHg, to the fuel tank unit as shown.

    2. Start the engine, and check the vacuum.
    GHH435227Courtesy of HONDA, U.S.A., INC.
    		 3. Turn the vehicle to the OFF (LOCK) mode.

    4. Connect a vacuum pump/gauge, 0-30 inHg, to the suction line (A) with the joint in the fuel pressure gauge set, and apply vacuum to the line.
    GHH435228Courtesy of HONDA, U.S.A., INC.
    		 5. Raise the vehicle on the lift.

    6. Remove the fuel filler neck cover

    7. Disconnect the quick-connect fitting (A) from breather line , then plug the suction line with the joint in the fuel pressure gauge set and a rubber cap (B).
    GHH435229Courtesy of HONDA, U.S.A., INC.
    		 8. Lower the vehicle.

    9. Connect a vacuum pump/gauge, 0-30 inHg, to the suction line (A) with the joint in the fuel pressure gauge set, and apply vacuum to the line.

    • If the line holds vacuum, check for a blockage in the breather line between the fuel tank and the suction joint. If there is blockage, replace the fuel tank .
    • If the line does not hold vacuum, go to next step.
    GHH435230GHH435231Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC.
    GHH435230GHH435231Courtesy of HONDA, U.S.A., INC.HONDA, U.S.A., INC.
    		 10. Raise the vehicle on the lift.

    11. Connect a vacuum pump/gauge, 0-30 inHg, to the fuel fill pipe side breather line (A), and apply air pressure to the line.

    • If the air pressure holds, or a blockage between the suction line and the fuel fill neck on the breather pipe, and replace the part that is causing the blockage.
    • If the air pressure does not hold, go to next step.

    NOTE: When check for the one way valve tube (B), remove it , then connect a vacuum pump/gauge, 0-30 inHg, with the joint in the fuel pressure gauge set, and apply vacuum or air pressure by one direction to the valve as shown.

    12. Remove the joint and the rubber cap (C) from the suction line (D), and reconnect the quick-connect fitting

    13. Install the fuel filler neck cover
    Pressure Hold Not hold
    Vacuum NG OK
    Pressurization OK NG
    GHH435232Courtesy of HONDA, U.S.A., INC.
    		 14. Lower the vehicle.

    15. Connect a vacuum pump/gauge, 0-30 inHg, to the suction line (A) with the joint in the fuel pressure gauge set, and apply pressure to the line.

    • If the air pressure holds, the breather line and the suction line are OK.
    • If the air pressure does not hold, check for a vacuum leak in the suction line, and replace the suction line if needed.

    16. Reconnect the quick-connect fitting (B) .
  5. Access Panel - Install
    GHH435233Courtesy of HONDA, U.S.A., INC.
    		 1. Install the access panel (A).
  6. Shift Lever - Install
  7. Center Console - Install
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