P0457 FORD - EVAP Control System Leak Detected Fuel Filler Cap Loose/Off

Repair Importance Level: 1/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Missing fuel filler cap
  • Incorrect fuel filler cap used
  • Fuel filler cap remains open or fails to close
  • Foreign matter caught in fuel filler cap

Tech notes

It is a very common problem with Ford vehicles. There are service bulletins for the following vehciles:

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 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
Ford Factory Service Bulletin OBDII Code P0457









User Submitted Video

When is the code detected?

EVAP control system has a very large leak such as fuel filler cap fell off, EVAP control system does not operate properly.

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Possible a noticeable fuel odor caused by the release of fuel vapors

P0457 Ford Description

Vehicles that meet enhanced evaporative requirements utilize a vacuum-based evaporative system integrity check. The evap system integrity check uses a Fuel Tank Pressure Transducer (FTPT), a Canister Vent Solenoid (CVS) and Fuel Level Input (FLI) along with the Vapor Management Valve (VMV) or Electric Vapor Management Valve (EVMV) to find 0.040” diameter or larger evap system leaks. Federal vehicles can utilize a 0.040" leak check rather than the 0.020" leak check required for California vehicles.
OBDII Code P0457 Ford - EVAP Control System Leak Detected Fuel Filler Cap Loose/Off - AutoCodes.com

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P0457 FORD Comments

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