Removal

REMOVAL

WARNING: Do not smoke or use open flames/sparks when servicing the fuel system. Wear protective clothing and eye protection. Make sure the area in which the vehicle is being serviced is in a well ventilated area and free of flames/sparks. Failure to comply may result in serious or fatal injury.

The Evaporative System Integrity Monitor (ESIM) (3) is very similar to the NVLD. However, the design of the ESIM has been simplified and unlike the NVLD the ESIM does not require a solenoid. The ESIM mounts directly to the EVAP vapor canister, eliminating the need for a mounting bracket. The EVAP vapor canister is located in the left rear quarter panel behind the left rear wheelhouse splash shield.





1. Disconnect and isolate the negative battery cable (2).

2. Remove the fuel tank filler cap.
3. Raise and support vehicle.





NOTE: When removing the fresh air hose, remove the hose at the fresh air filter first, this will eliminate the risk of breaking the nipple from the ESIM during removal.

4. Carefully remove the ESIM fresh air hose (6).
5. Disconnect the electrical connector (4) at the ESIM.





6. A lock tab (see arrow) is used on the back of the switch. Push the lock tab towards ESIM switch while rotating counterclockwise 1/4 turn for removal.

The fresh air lines and hoses from the ESIM must have a clear opening to the atmosphere. Check the fresh air lines, including the fresh air filter, for obstructions or restrictions at the ESIM. If a restriction is present, the system will not allow free flow passage of clean air, and an early shut off of the fuel fill nozzle may occur during refueling.

7. Clean any dirt from ESIM switch, lines and EVAP canister opening.
8. Inspect the ESIM O-ring, replace if necessary.