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2004 Freestar/Monterey Workshop Manual
SECTION 310-00: Fuel System
DIAGNOSIS AND TESTING
Evaporative Emissions
Special Tool(s)
Worldwide Diagnostic System (WDS)
418-F224
New Generation STAR (NGS) Tester
418-F052, or equivalent scan tool
Evaporative Emission System Leak Tester
310-F007 (134-00056) or equivalent
The EVAP running loss system leak test:
utilizes intake manifold vacuum to test the system and involves several stages.
Evaporative Emission System
Item
Part Number
1
9030
2
9C052
3
9B190
4
9C915
5
9F945
6
9B328
7
9D653
8
9002
9
9B593
10
9189
Principles of Operation
Evaporative Emission (EVAP) Canister Purge Valve
The EVAP canister purge valve is controlled by the powertrain control module (PCM). The EVAP canister purge valve controls the flow of fuel vapors from the EVAP
canisters to the engine intake manifold during various engine operating modes. The EVAP canister purge valve is normally closed.
Evaporative Emission (EVAP) Canisters
http://www.fordtechservice.dealerconnection.com/pubs/content/~WS4W/~MUS~LEN/20/...
Printable View (184 KB)
Description
Fuel tank pressure sensor
RIU limit vent valve
Evaporative emission canister purge valve
Evaporative emission dust separator
Evaporative emission canister
Fuel tank
Fuel vapor vent valve
Page 1 of 8
2004 Freestar/Monterey Workshop Manual
Procedure revision date: 07/31/2003
10/9/2010
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Summary of Contents for Ford Freestar 2004
- Page 1 2004 Freestar/Monterey Workshop Manual Page 1 of 8 SECTION 310-00: Fuel System 2004 Freestar/Monterey Workshop Manual DIAGNOSIS AND TESTING Procedure revision date: 07/31/2003 Evaporative Emissions Printable View (184 KB) Special Tool(s) Worldwide Diagnostic System (WDS) 418-F224 New Generation STAR (NGS) Tester 418-F052, or equivalent scan tool Evaporative Emission System Leak Tester 310-F007 (134-00056) or equivalent...
- Page 2 2004 Freestar/Monterey Workshop Manual Page 2 of 8 Fuel vapors from the fuel tank are stored in the EVAP canisters. When the engine is running, the vapors are purged from the EVAP canisters for combustion. Canister Vent Solenoid During the Evaporative Emission Running Loss System Monitor Test, Evaporative Emissions Repair Verification Drive Cycle, and the Evaporative Emission System Leak Test, the canister vent solenoid is closed to allow either a vacuum to be drawn on the fuel tank or to hold a specified pressure in the system.
- Page 3 2004 Freestar/Monterey Workshop Manual Page 3 of 8 SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the PCM KOEO self- test. 6. If the DTCs retrieved are related to the concern, go to the PCM Diagnostic Trouble Code (DTC) Index to continue diagnostics. 7.
- Page 4 2004 Freestar/Monterey Workshop Manual Page 4 of 8 Visually inspect the fuel filler cap for damage. INSTALL a new fuel filler cap. GO to A4. Is the fuel filler cap damaged? GO to A4. A4 CHECK FOR SMALL LEAKS AT THE FUEL FILLER CAP AND EVAP TEST PORT Connect the Evaporative Emission System Leak Tester to the fuel filler pipe.
- Page 5 2004 Freestar/Monterey Workshop Manual Page 5 of 8 Turn the Evaporative Emission System Leak Tester selector to the FILL position. Pressurize the EVAP system to 3.48 kPa (14 inches GO to A10. Using the ultrasonic leak detector, check the fuel tank vapor tube to the fuel tank for leaks.
- Page 6 2004 Freestar/Monterey Workshop Manual Page 6 of 8 Connect the Evaporative Emissions GO to B6. System Leak Tester to the fuel filler pipe. Pressurize the EVAP system to 6.47 to 6.97 kPa (26 to 28 inches H INSTALL new fuel tank vapor line(s). REPEAT pinpoint test Step B5 to verify the repair. CARRY OUT the Does the pressure drop immediately? evaporative emission system leak test.
- Page 7 2004 Freestar/Monterey Workshop Manual Page 7 of 8 Start the engine and allow to idle. Monitor the FTP V and EVAPPDC PIDs. When PID EVAPPDC is zero, is PID FTP V reading below 2.40 volts? PINPOINT TEST D: HISS WHEN OPENING FUEL CAP Test Step Result / Action to Take D1 TEST FOR EVAP CANISTER, CANISTER...
- Page 8 2004 Freestar/Monterey Workshop Manual Page 8 of 8 INSTALL a new fuel vapor hose. CARRY OUT the evaporative emission system leak test. REFER to Evaporative Emission System Leak Test in this section. If the system passes the leak test, CARRY OUT the evaporative emission repair verification drive cycle.
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