Engine-Codes
 
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P0456 2008 FORD FUSION

P0456 2008 FORD FUSION - EVAP System Leak Detected Gross Leak/No Flow

Repair Importance Level: 1/3
Repair Difficulty Level: 3/3  What does this mean?

Possible causes

  • Missing or loose fuel cap
  • Incorrect fuel filler cap used
  • Fuel filler cap remains open or fails to close
  • Foreign matter caught in fuel filler cap
  • Evaporative Emission (EVAP) canister or fuel tank leaks
  • Evaporative Emission (EVAP) system hose leaking
  • Fuel tank leaking

When is the code detected?

Evaporative Emission (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

P0456 2008 Ford Fusion Description

The powertrain control module (PCM) monitors the complete evaporative emission (EVAP) control system for the presence of a very small fuel vapor leak. The system failure occurs when a fuel vapor leak from an opening as small as 0.508 mm (0.020 inch) is detected by the EVAP running loss monitor test.
OBDII Code P0456 2008 Ford Fusion - EVAP System Leak Detected Gross Leak/No Flow - Engine-Codes.com

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