EVAP System Small Leak Detected
Table of contents
P1442 FORD Possible Causes
- Open or faulty gas cap
- Small leak in EVAP system-Check vent solenoid
- Faulty hose connection or leak in line
How do I fix code P1442 FORD?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- There is a factory service bulletin for the following Ford vehicles:
- 1997-2000 Ford Contour
- 1997-2002 Ford Escort
- 1997-2003 Ford Crown Victoria
- 1997-2003 Ford Mustang
- 1997-2003 Ford Taurus
- 1998-2003 Ford Escort ZX2
- 2000-2003 Ford Focus
- 2002-2003 Ford Thunderbird
- 1997 Ford F-250 HD
- 1997-1999 Ford F-250 LD
- 1997-2003 Ford E Series
- 1997-2003 Ford Expedition
- 1997-2003 Ford Explorer
- 1997-2003 Ford F-150
- 1997-2003 Ford Ranger
- 1997-2003 Ford Windstar
- 1999-2003 Ford F Super Duty
- 2000-2003 Ford Excursion
- 2001-2003 Ford Escape
- 2001-2003 Ford Explorer Sport Trac
- 2001-2003 Ford Explorer Sport
- Ford Factory Service Bulletin OBDII Code P1442
Cost of diagnosing the P1442 FORD code
The cost of diagnosing the P1442 FORD code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1442 FORD Description
This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using an engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition.
The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.
The Diagnostic Trouble Code (DTC) will set when the EVAP control system has a small leak such as the loose fuel filler cap, the EVAP control system does not operate properly.