Engine-Codes - Mercury - P144C MERCURY

P144C MERCURY - Evaporative Emission System Purge Check Valve Performance

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P144C MERCURY Possible Causes

  • Stuck open Evaporative Emission (EVAP) canister purge check valve (part of EVAP canister purge valve)
  • Damaged EVAP canister purge check valve

How do I fix code P144C MERCURY?

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.

Cost of diagnosing the P144C MERCURY code

Labor: 1.0

The cost of diagnosing the P144C MERCURY code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P144C MERCURY Meaning

The Powertrain Control Module (PCM) tests the Evaporative Emission (EVAP) canister purge check valve for a stuck open condition. The EVAP canister purge check valve test is performed during minimal boost conditions, once per drive cycle, when entry conditions are met. The DTC is set if the fuel tank pressure exceeds a calibrated amount within a specified amount of time during the test.

P144C MERCURY More Information

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