OBDII Code List
P0442 2008 FORD FUSION

P0442 2008 FORD FUSION - Evaporative Emission System Leak Detected Small Leak

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
  • EVAP canister or fuel tank leaks
  • EVAP system hose leaking
  • Fuel tank leaking

Tech notes

The P0442 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). Loose fuel tank filler cap is the most common cause that triggers the P0442 code.

When is the code detected?

Malfunction is detected when EVAP control system has a leak, 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

P0442 2008 Ford Fusion Description

The powertrain control module (PCM) monitors the complete evaporative emission (EVAP) control system for the presence of a small fuel vapor leak. System failure occurs when a fuel vapor leak from an opening as small as 1.016 mm (0.040 in) is detected by the EVAP running loss monitor test.
OBDII Code P0442 2008 Ford Fusion - Evaporative Emission System Leak Detected Small Leak - Engine-Codes.com

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