Leak Detection Pump: Service and Repair

NATURAL VAC LEAK DETECTION ASSY

REMOVAL

1. Release fuel pressure.
2. Remove the air cleaner lid, disconnect the inlet air temperature sensor and makeup air hose.
3. Remove the negative battery cable.
4. Raise vehicle and support.
5. Drain fuel tank, refer to Draining Fuel Tank in the Fuel Delivery section.

Fuel Tank Assembly:

EVAP System:

6. Remove fuel tank and EVAP system, refer to the Fuel Tank removal/installation section in the Fuel Delivery section.
7. Remove hoses from NVLD assembly.
8. Remove the bolts from the NVLD Assembly.

INSTALLATION
1. Install NVLD assembly to the bracket.
2. Install assembly to the fuel tank.
3. Install hoses and lines.
4. Install the fuel tank and EVAP system, refer to the Fuel Tank removal/installation in the Fuel Delivery.
5. Lower vehicle.
6. Install the negative battery cable.
7. Install the air cleaner lid, connect the inlet air temperature sensor and makeup air hose.
8. Fill fuel tank. Use the DRBIII(R) scan tool to pressurize the fuel system. Check for leaks.