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Leak Detection Pump: Service and Repair

NATURAL VACUUM LEAK DETECTION (NVLD) If Equipped


REMOVAL
1. Disconnect the negative battery cable.
2. Remove fuel tank, refer to the Fuel Delivery for Fuel Tank Removal.
3. Disconnect the electrical connector from the NVLD assembly.

Fig.5 Assembly Removed:




4. Disconnect the hoses from the NVLD assembly.

Fig.4 Locking Tab:




5. Lift tab on NVLD assembly and twist the assembly counterclockwise and pull up to remove from EVAP canister.

Fig.6 O-Ring:




6. Remove O-ring from EVAP canister.

INSTALLATION
1. Install O-ring to EVAP canister.
2. Install NVLD assembly and twist the assembly clockwise to lock assembly in the EVAP canister.
3. Connect the hoses to the NVLD assembly.
4. Connect the electrical connector to the NVLD assembly.
5. Install fuel tank, refer to the Fuel Delivery for Fuel Tank Installation.
6. Connect the negative battery cable.

Also see, Computer and Control System/Testing and Inspection/Monitors, Trip and/or Drive Cycles/Monitored Systems/Natural Vacuum Leak Detection (NVLD), if equipped.