Honda HR-V Owners & Service Manuals

Honda HR-V: Breather Line and Suction Line Inspection (2WD: KA/KC)

Special Tools Required

Fuel Pressure Gauge Attachment Set 07AAJ-S6MA150

Engine Control System & Engine Mechanical - Testing & Troubleshooting

Vacuum Pump/Gauge, 0-30 inHg Snapon YA4000A or equivalent, commercially available

Engine Control System & Engine Mechanical - Testing & Troubleshooting

Inspection

1. Center Console - Remove

2. Shift Lever - Remove

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

  • M/T: Remove the shift lever housing
  • CVT: Remove the shift lever

3. Access Panel - Remove

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  1. Remove the access panel (A) from the floor.

4. Breather Line and Suction Line - Inspect

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  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.
    • If there is vacuum, go to step 3.
    • If there is no vacuum, replace the fuel filter - Refer to: Fuel Tank Unit Disassembly and Reassembly (2WD), or Fuel Tank Unit Disassembly and Reassembly (AWD).

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  1. Turn the vehicle to the OFF (LOCK) mode
  2. 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.

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  1. Raise the vehicle on the lift.
  2. Remove the fuel filler neck cover - Refer to: Fuel Tank Removal and Installation (AWD), or Fuel Tank Removal and Installation (KA/KC).
  3. 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).

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  1. Lower the vehicle
  2. 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 - Refer to: Fuel Tank Removal and Installation (AWD), or Fuel Tank Removal and Installation (KA/KC).
    • If the line does not hold vacuum, go to next step.

Engine Control System & Engine Mechanical - Testing & Troubleshooting

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  1. Raise the vehicle on the lift.
  2. 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

  1. Remove the joint and the rubber cap (C) from the suction line (D), and reconnect the quick-connect fitting.
  2. Install the fuel filler neck cover - Refer to: Fuel Tank Removal and Installation (AWD), or Fuel Tank Removal and Installation (KA/KC).

Engine Control System & Engine Mechanical - Testing & Troubleshooting

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  1. Lower the vehicle.
  2. 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.
  3. Reconnect the quick-connect fitting (B).

5. Access Panel - Install

Engine Control System & Engine Mechanical - Testing & Troubleshooting

  1. Install the access panel (A).

6. Shift Lever - Install

  • M/T: Install the shift lever housing
  • CVT: Install the shift lever

7. Center Console - Install

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