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Evaporative Emissions - 2.0l Duratec-He Ford Focus ST III

Testing & Diagnostics 7 illustrations ~652 words

Overview

The EVAP system prevents hydrocarbon emissions from entering the atmosphere by storing fuel vapors and routing the vapors to the engine to be consumed during normal engine operation.

The EVAP system consists of

  1. EVAP canister
  2. EVAP canister purge valve
  3. EVAP canister vent solenoid
  4. Fuel Tank Pressure (FTP) sensor and tube
  5. Easy Fuel (capless) fuel tank filler pipe

System Operation

Refer to the ENGINE CONTROLS - DESCRIPTION & OPERATION (EXCEPT DIESEL & HYBRID) .

Scheme 1

Scheme 1: System Diagram
Scheme 1: System Diagram
ItemService Part NumberDescription
19424Intake manifold
2PCV valve (part of 6A785)
36A785Crankcase vent oil separator
49E652Air Cleaner (ACL) outlet pipe
56582Valve cover
69D289EVAP canister purge valve
79002Fuel tank
8Fuel Tank Pressure (FTP) sensor and tube (part of 9C047)
99034Fuel tank filler pipe
109D653EVAP canister

Engine Diagnostic Information

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. For information about these

REFER to: Diagnostic Methods ( DIAGNOSTIC METHODS ).

For PCM DTC.

REFER to: Electronic Engine Controls ( ELECTRONIC ENGINE CONTROLS - 2.0L DURATEC-HE .

For driveability symptoms without DTC, ENGINE CONTROLS - SYMPTOM CHARTS (EXCEPT DIESEL & HYBRID) .

Evaporative Emission System Leak Test

  1. Refer to: Health and Safety Precautions ( «HEALTH AND SAFETY PRECAUTIONS»(/ford/focus-st/iii-2012-2015/remont/oem-general-information/#service-information-introduction-except-electric) ).
  2. Disconnect the vapor tube-to- EVAP canister purge valve quick connect coupling (engine side). Refer to: Quick Release Coupling ( «QUICK RELEASE COUPLING»(/ford/focus-st/iii-2012-2015/remont/fuel-system/#fuel-system-general-information-20l-duratec-engine__quick-release-coupling) ).
  3. Connect the VACUTEC Smoke Machine Fuel Evaporative Emission Tester to the EVAP canister purge valve fitting. Refer to manufacturer's instructions.
  4. Connect the scan tool and open the EVAP canister purge valve.
  5. Using the scan tool, close the EVAP canister vent solenoid. Refer to manufacturer's instructions.
  6. Using the VACUTEC Smoke Machine Fuel Evaporative Emission Tester, pressurize the EVAP system.
  7. Monitor the indicator flag on the VACUTEC Smoke Machine Fuel Evaporative Emission Tester. If the measurement is below the indicator flag, the system has passed the leak test and the test procedure is complete. If the measurement is above the indicator flag, the system has failed the leak test. If the leak test has failed, proceed to next step.
  8. Introduce smoke from the VACUTEC Smoke Machine Fuel Evaporative Emission Tester into the EVAP system. Refer to manufacturer's instructions.
  9. Use the halogen light provided with the VACUTEC Smoke Machine Fuel Evaporative Emission Tester to look for smoke coming from the EVAP system. This would indicate a leak point.
  10. Repair any leaks as necessary.
  11. Repeat the leak test until the system passes.

Scheme 2

Scheme 2: Removal
Scheme 2: Removal
  1. Refer to: Health and Safety Precautions ( «HEALTH AND SAFETY PRECAUTIONS»(/ford/focus-st/iii-2012-2015/remont/oem-general-information/#service-information-introduction-except-electric) ).
  2. Refer to: Jacking and Lifting - Overview ( «JACKING AND LIFTING - OVERVIEW»(/ford/focus-st/iii-2012-2015/remont/hoistjack/#jacking-lifting-except-electric) ).
  3. Refer to: Battery Disconnect and Connect ( «BATTERY DISCONNECT AND CONNECT»(/ford/focus-st/iii-2012-2015/remont/charging-system/#battery-mounting-and-cables-except-electric) Battery, Mounting and Cables, General Procedures).
  4. NOTE: Clean the EVAP canister vent solenoid electrical connector and the immediate surrounding area of any dirt or foreign material. Refer to: Quick Release Coupling ( «QUICK RELEASE COUPLING»(/ford/focus-st/iii-2012-2015/remont/fuel-system/#fuel-system-general-information-20l-duratec-engine__quick-release-coupling) ). Torque : 4 Nm

Installation

  1. To install, reverse the removal procedure.
  2. Refer to: «Evaporative Emission System Leak Test»(/ford/focus-st/iii-2012-2015/remont/testing-diagnostics/#evaporative-emissions-20l-duratec-he__evaporative-emission-system-leak-test) .

Scheme 3

Scheme 3: Removal
Scheme 3: Removal
  1. Refer to: Health and Safety Precautions ( «HEALTH AND SAFETY PRECAUTIONS»(/ford/focus-st/iii-2012-2015/remont/oem-general-information/#service-information-introduction-except-electric) ).
  2. Refer to: «Evaporative Emission Canister»(/ford/focus-st/iii-2012-2015/remont/testing-diagnostics/#evaporative-emissions-20l-duratec-he) .
  1. To install, reverse the removal procedure.

Scheme 4

Scheme 4: Removal
Scheme 4: Removal

Scheme 5

Scheme 5
Scheme 5

Scheme 6

Scheme 6
Scheme 6
  1. Refer to: Health and Safety Precautions ( «HEALTH AND SAFETY PRECAUTIONS»(/ford/focus-st/iii-2012-2015/remont/oem-general-information/#service-information-introduction-except-electric) .
  2. Refer to: Battery Disconnect and Connect ( «BATTERY DISCONNECT AND CONNECT»(/ford/focus-st/iii-2012-2015/remont/charging-system/#battery-mounting-and-cables-except-electric) ).
  3. Refer to: Air Cleaner Outlet Pipe ( «AIR CLEANER OUTLET PIPE»(/ford/focus-st/iii-2012-2015/remont/removal-installation/#intake-air-distribution-and-filtering-20l-duratec-he) ).
  4. Refer to: Quick Release Coupling ( «QUICK RELEASE COUPLING»(/ford/focus-st/iii-2012-2015/remont/fuel-system/#fuel-system-general-information-20l-duratec-engine__quick-release-coupling) ).
  1. To install, reverse the removal procedure.
  2. Refer to: «Evaporative Emission System Leak Test»(/ford/focus-st/iii-2012-2015/remont/testing-diagnostics/#evaporative-emissions-20l-duratec-he__evaporative-emission-system-leak-test) .

Scheme 7

Scheme 7: Removal
Scheme 7: Removal
  1. Refer to: Health and Safety Precautions ( «HEALTH AND SAFETY PRECAUTIONS»(/ford/focus-st/iii-2012-2015/remont/oem-general-information/#service-information-introduction-except-electric) ).
  2. Refer to: Jacking and Lifting - Overview ( «JACKING AND LIFTING - OVERVIEW»(/ford/focus-st/iii-2012-2015/remont/hoistjack/#jacking-lifting-except-electric) ).
  3. Refer to: Fuel Tank ( «FUEL TANK»(/ford/focus-st/iii-2012-2015/remont/fuel-system/#fuel-tank-and-lines-20l-duratec-engine) ).
  4. Refer to: Quick Release Coupling ( «QUICK RELEASE COUPLING»(/ford/focus-st/iii-2012-2015/remont/fuel-system/#fuel-system-general-information-20l-duratec-engine__quick-release-coupling) ).
  1. To install, reverse the removal procedure.
  2. Refer to: «Evaporative Emission System Leak Test»(/ford/focus-st/iii-2012-2015/remont/testing-diagnostics/#evaporative-emissions-20l-duratec-he__evaporative-emission-system-leak-test) .

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