Evaporative Emissions - (hybrid) Mercury Mariner II рестайлинг

Torque Specifications

TORQUE SPECIFICATIONS

The Evaporative Emission (EVAP) system consists of the

1. EVAP canister purge valve.
2. EVAP canister.
3. EVAP canister vent solenoid.
4. fuel vapor tube assembly (includes the Fuel Tank Pressure (FTP) sensor).
5. Easy Fuel™ (capless) fuel tank filler pipe.
6. fuel vapor vent valve.

The EVAP system

1. utilizes an On-Board Refueling Vapor Recovery (ORVR) system that captures the fuel vapors from the vehicle's fuel tank during refueling.
2. prevents hydrocarbon emissions from reaching the atmosphere.
3. stores fuel vapors in the EVAP canister, that are generated during vehicle operation or hot soak, until they can be consumed by the engine during normal engine operation.
4. routes the stored fuel vapors to the engine during engine operation.
5. is controlled by the PCM which, using various sensor inputs, calculates the desired amount of purge flow. The PCM regulates the purge flow, induced by the application of intake manifold vacuum, by varying the duty cycle applied to the EVAP canister purge valve.

The fuel vapors are routed

1. from the fuel tank through the fuel vapor vent valve.
2. to the EVAP canister through the fuel vapor tube assembly.
3. to the engine when the EVAP canister purge valve is opened by the PCM.

The FTP sensor

1. is part of the fuel vapor tube assembly.
2. monitors the pressure levels in the fuel tank.
3. communicates the pressure reading to the PCM during the OBD II leak test.

The fuel vapor tube assembly

1. is located on the top LH side of the fuel tank.
2. is used to control the flow of fuel vapors entering the EVAP system.

The EVAP canister

1. is located under the vehicle midway under the LH side of the vehicle.
2. contains activated carbon.
3. stores fuel vapors.

The Easy Fuel™ (capless) fuel tank filler pipe

1. relieves system vacuum below -3.5 kPa (-16.00 in H 2 O).

The EVAP canister vent solenoid

1. is normally open.
2. seals the EVAP system for the inspection and maintenance (I/M 240) test and OBD II leak and pressure tests.
3. is mounted to the EVAP canister.
4. is repaired as a separate item.

The EVAP canister purge valve

1. is normally closed.
2. regulates the purging of the EVAP canisters.
3. is controlled by the PCM.
4. is repaired as a separate item.
5. is mounted on the intake manifold.

The fuel vapor vent valve

1. is controlled by the PCM.
2. shuts off the tank vapor flow during the purge cycle.
3. is mounted in the EVAP canister tray.
4. is repaired as a separate item.

The EVAP system monitor

1. is a self-test strategy within the PCM which tests the integrity of the EVAP system.
2. monitors the EVAP system for leaks.
3. monitors electronic EVAP components for irrationally high or low voltages.
4. monitors for correct EVAP system operation.
5. uses negative and positive leak test methods to test and activate the EVAP system.

The engine ON EVAP leak-check monitor

1. is executed by the individual components of the enhanced EVAP system. Intake manifold vacuum is utilized to reach a target vacuum on the EVAP system. The FTP sensor is used by the engine ON EVAP leak-check monitor to determine if the target vacuum necessary to carry out the leak-check on the EVAP system has been reached. Once target vacuum on the EVAP system is achieved, the change in EVAP system vacuum over a calibrated period of time determines if a leak exists.

The Engine Off Natural Vacuum (EONV) EVAP leak-check monitor is executed

1. once the engine ON EVAP leak-check monitor is completed and the key is turned OFF. The EONV EVAP leak-check monitor determines if a leak is present when the naturally occurring change in the fuel tank pressure or vacuum does not exceed a calibrated limit during a calibrated amount of time. A separate, low-power consuming microprocessor in the PCM manages the EONV leak-check. The engine OFF EVAP leak-check monitor is executed by the individual components of the enhanced EVAP system.

Scheme 185

PARTS DESCRIPTION CHART

Special Tool(s)

SPECIAL TOOLS DESCRIPTION CHART VACUTEC Smoke Machine Fuel EVAP Emissions System Tester 218-0002 or equivalent Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool

Scheme 186

Scheme 187

Phase 1 - Leak Verification

1. Run the EVAP Test with the scan tool.
2. If the Evaporative Emission (EVAP) system failed the EVAP Test, then proceed to Phase 2.

Phase 2 - System Leak Check

1. Disconnect the fuel vapor tube-to- EVAP canister purge valve quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/mercury/mariner/ii-2011-2011/remont/fuel-system/#fuel-system-general-information) .
2. Connect the VACUTEC Smoke Machine Fuel EVAP Emissions System Tester to the fuel vapor tube quick connect coupling. For additional information, manufacturer's instructions.
3. Connect the battery ground cable. For additional information, refer to «BATTERY, BATTERY MOUNTING SYSTEM & BATTERY CABLES»(ref-434539) .
4. Close the canister vent solenoid with the scan tool.
5. Install the supplemental refueling adapter into the Easy Fuel™ (capless) fuel tank filler pipe assembly.
6. Introduce smoke from the VACUTEC Smoke Machine Fuel EVAP Emissions System Tester into the EVAP system and verify that smoke is exiting the fuel tank filler pipe neck area. For additional information, manufacturer's instructions.
7. Remove the supplemental refueling adapter once smoke is observed exiting the fuel tank filler pipe neck area.
8. Continue to enter smoke into the system for 60 seconds to obtain pressure.
9. Press and release the remote start button in intervals of 15 seconds ON and 15 seconds OFF while checking for exiting smoke.
10. Use the halogen light provided with the VACUTEC Smoke Machine Fuel EVAP Emissions System Tester to follow the EVAP system path and look for smoke exiting at the source of the leak(s).
11. Repair any leaks as necessary.
12. Repeat the leak test until the system passes.

Scheme 188

EVAPORATIVE EMISSION CANISTER PURGE VALVE PARTS DESCRIPTION CHART

Removal and Installation

1. Disconnect the battery ground cable. For additional information, refer to «BATTERY, BATTERY MOUNTING SYSTEM & BATTERY CABLES»(ref-434539) .
2. Disconnect the Evaporative Emission (EVAP) canister purge valve electrical connector.
3. Disconnect the fuel vapor tube-to- EVAP canister purge valve quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/mercury/mariner/ii-2011-2011/remont/fuel-system/#fuel-system-general-information) .
4. Remove the 2 bolts and the EVAP canister purge valve. To install, tighten to 6 Nm (53 lb-in).
5. To install, reverse the removal procedure.

1. Carry out the Evaporative Emission System Leak Test. For additional information, refer to «EVAPORATIVE EMISSION SYSTEM LEAK TEST»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#evaporative-emissions-hybrid) .

Scheme 189

EVAPORATIVE EMISSION CANISTER PARTS DESCRIPTION CHART

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(/mercury/mariner/ii-2011-2011/remont/hoistjack/#jacking-lifting) .
2. Disconnect the battery ground cable. For additional information, refer to «BATTERY, BATTERY MOUNTING SYSTEM & BATTERY CABLES»(ref-434539) .
3. Disconnect the Evaporative Emission (EVAP) canister electrical connector.
4. Disconnect the fresh air tube from the EVAP canister.
5. Disconnect the fuel vapor tube assembly-to-fuel vapor vent valve quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/mercury/mariner/ii-2011-2011/remont/fuel-system/#fuel-system-general-information) .
6. Disconnect the EVAP canister purge tube-to-fuel vapor tube quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/mercury/mariner/ii-2011-2011/remont/fuel-system/#fuel-system-general-information) .
7. Remove the 2 nuts, 2 bolts and the EVAP canister assembly. To install, tighten to 7 Nm (62 lb-in).
8. To install, reverse the removal procedure.

1. Carry out the Evaporative Emission System Leak Test. For additional information, refer to «EVAPORATIVE EMISSION SYSTEM LEAK TEST»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#evaporative-emissions-hybrid) .

Scheme 190

EVAPORATIVE EMISSION CANISTER VENT SOLENOID PARTS DESCRIPTION CHART

1. Remove the Evaporative Emission (EVAP) canister assembly. For additional information, refer to «EVAPORATIVE EMISSION CANISTER»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#evaporative-emissions-hybrid) .
2. Disconnect the EVAP canister vent solenoid and fuel vapor vent valve electrical connectors.
3. Release the pin-type retainer and remove the EVAP canister wire harness.
4. Remove the 3 EVAP canister tray bolts. To install, tighten to 5 Nm (44 lb-in).
5. Disconnect the EVAP canister purge tube-to- EVAP canister quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/mercury/mariner/ii-2011-2011/remont/fuel-system/#fuel-system-general-information) .
6. Disconnect the fuel vapor vent valve-to- EVAP canister quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/mercury/mariner/ii-2011-2011/remont/fuel-system/#fuel-system-general-information) .
7. Remove the EVAP canister from the tray.
8. Depress the locking tab outward, rotate the EVAP canister vent solenoid clockwise and remove it from the EVAP canister.
9. To install, reverse the removal procedure.

1. Carry out the Evaporative Emission System Leak Test. For additional information, refer to «EVAPORATIVE EMISSION SYSTEM LEAK TEST»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#evaporative-emissions-hybrid) .

Scheme 191

FUEL VAPOR VENT VALVE PARTS DESCRIPTION CHART

1. Remove the Evaporative Emission (EVAP) canister assembly. For additional information, refer to «EVAPORATIVE EMISSION CANISTER»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#evaporative-emissions-hybrid) .
2. Disconnect the fuel vapor vent-to- EVAP canister quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/mercury/mariner/ii-2011-2011/remont/fuel-system/#fuel-system-general-information) .
3. Disconnect the fuel vapor vent valve electrical connector.
4. Remove the fuel vapor vent valve from the EVAP canister tray.
5. To install, reverse the removal procedure.

1. Carry out the Evaporative Emission System Leak Test. For additional information, refer to «EVAPORATIVE EMISSION SYSTEM LEAK TEST»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#evaporative-emissions-hybrid) .

SPECIAL TOOLS DESCRIPTION CHART Powertrain Lift 300-OTC1585AE or equivalent

Scheme 192

Scheme 193

FUEL VAPOR TUBE ASSEMBLY PARTS DESCRIPTION CHART

Scheme 194

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(/mercury/mariner/ii-2011-2011/remont/hoistjack/#jacking-lifting) .
2. Disconnect the battery ground cable. For additional information, refer to «BATTERY, BATTERY MOUNTING SYSTEM & BATTERY CABLES»(ref-434539) .
3. Position the Powertrain Lift under the fuel tank.
4. Remove the bolt and position the LH fuel tank strap. To install, tighten to 55 Nm (41 lb-ft).
5. Partially lower the LH side of the fuel tank enough to access the fuel vapor tube assembly.
6. Disconnect the Fuel Tank Pressure (FTP) sensor electrical connector.
7. Disconnect the fuel vapor tube assembly-to-fuel tank quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/mercury/mariner/ii-2011-2011/remont/fuel-system/#fuel-system-general-information) .
8. Disconnect the fuel vapor tube assembly-to-fuel vapor vent valve quick connect coupling. For additional information, refer to «FUEL SYSTEM - GENERAL INFORMATION»(/mercury/mariner/ii-2011-2011/remont/fuel-system/#fuel-system-general-information) .
9. Remove the fuel vapor tube assembly.
10. To install, reverse the removal procedure.

1. Carry out the Evaporative Emission System Leak Test. For additional information, refer to «EVAPORATIVE EMISSION SYSTEM LEAK TEST»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#evaporative-emissions-hybrid) .

See also:
• FUEL SYSTEM - GENERAL INFORMATION
• JACKING & LIFTING
• EVAPORATIVE EMISSION SYSTEM LEAK TEST