P0441 on 2014 Ram 2500: EVAP Incorrect Purge Flow Causes and Fixes

What's Unique About the 2014-2014 Ram 2500

On this generation of Ram trucks, the P0441 code is not always caused by a failed part. Several Technical Service Bulletins (TSBs) were issued by the manufacturer, indicating that the code could be triggered by outdated PCM software. In these instances, a dealership reflash is the correct fix. Additionally, for trucks operated in very dusty environments, the EVAP canister filter can become clogged, leading to this code; an upgraded dual-filter kit is available from Mopar to address this specific condition. One owner on a forum noted that their persistent issue with the fuel nozzle shutting off prematurely eventually led to a P0441 code, suggesting a venting issue can precede the code.

Diagnostic Flowchart

Tap your situation to follow the diagnostic path that matches what you're seeing on this vehicle.

Symptoms You May Notice

• Check Engine Light is on
• Difficulty refueling (fuel nozzle shuts off prematurely)
• Faint fuel smell (rare)
• Remote start may be disabled

Most Likely Causes

1. Faulty EVAP Purge Valve/Solenoid 🔴 High Probability The purge valve is located in the hot engine bay and is subject to wear, causing it to stick open or closed over time. This is the most widely reported failure for P0441 across Ram and other Mopar platforms.
   How to confirm: The valve is normally closed. Disconnect it and try to blow through it. If air passes, it's stuck open and needs replacement. You can also use a scan tool to command it open and listen for a click or check for vacuum passthrough. One mechanic suggests testing when the engine is cold, as a faulty valve might seal itself when it warms up and temporarily appear to be working correctly.
   Typical fix: Replace the purge valve solenoid. This is a quick job, usually taking less than 15 minutes.
   Est. part cost: $25-$60
2. Faulty Fuel Tank Pressure Sensor 🟡 Medium Probability This sensor monitors the pressure changes in the EVAP system to verify purge flow. It can fail and send incorrect data to the PCM, falsely triggering a P0441. A user on RamForum.com chased the code for a while, replaced the purge valve with no luck, and finally fixed it by replacing this sensor.
   How to confirm: A scan tool can read the live data from the sensor. With the gas cap off, it should read near atmospheric pressure (0 inH2O or around 2.5 volts). If the reading is stuck high or low, the sensor is likely bad. It is located on the vent line attached to the fuel filler neck.
   Typical fix: Replace the fuel tank pressure sensor.
   Est. part cost: $30-$70
3. Cracked or Disconnected EVAP Hoses 🟡 Medium Probability Rubber and plastic hoses become brittle over time due to heat and exposure, leading to cracks and vacuum leaks. Rodents chewing on lines is also a known issue; one owner of a 2014 Ram 1500 found a chewed-through hose on top of the fuel tank to be the cause of his P0441, P0456, and P0457 codes.
   How to confirm: Visually inspect all accessible EVAP lines between the engine, charcoal canister, and fuel tank. A smoke test is the most effective way to find small, hard-to-see leaks.
   Typical fix: Replace the damaged section of hose. In some cases, a specific molded hose assembly from the manufacturer is required, such as Mopar part #55398515AB for a specific line on the Ram 1500.
   Est. part cost: $10-$100
4. Outdated PCM Software ⚪ Low Probability Manufacturer TSBs #18-096-16, #18-042-15, #1800414, and #18-004-14 all list P0441 as a code that can be resolved with a software update, indicating the fault logic was too sensitive in earlier software versions.
   How to confirm: A dealership or a well-equipped independent shop can check the current software version of your PCM against the latest available version from the manufacturer.
   Typical fix: Update or 'reflash' the Powertrain Control Module (PCM) to the latest software version.
   Est. part cost: $0-$200 (Labor cost at a dealership)

Rare But Worth Checking

• Clogged EVAP Canister Filter: TSB #25-001-21 (superseded by #25-001-21 REV. A) notes that vehicles operated in continuously dusty conditions can plug the EVAP canister filter, causing P0441 and fuel filling issues. An upgraded dual-filter kit (Mopar #68478013AA) is the recommended fix.
• Faulty Gas Cap: While a loose or bad gas cap more commonly causes large leak codes like P0455 or P0457, some owners report it as a fix. It's an easy and inexpensive first check, but less likely for P0441 specifically, as confirmed by a technician on RamForum.com.
• Faulty ESIM (Evaporative System Integrity Module) Switch: This switch is part of the leak detection system and is mounted on the charcoal canister. While it more commonly causes small leak codes (P0456), its failure can sometimes contribute to or be misdiagnosed as a P0441 flow issue. The Mopar part number has been superseded several times, with the latest being 04861963AD.

Diagnosis Steps

1. Read the code with an OBD-II scanner to confirm P0441 is present.
2. Check that the gas cap is tight and the seal is not cracked or worn. Use an OEM Mopar cap if a replacement is needed.
3. Visually inspect the EVAP purge valve and its hoses in the engine bay for any obvious cracks or disconnections.
4. Test the purge valve, preferably when the engine is cold. With the engine off, remove the valve and try to blow through it. If air passes, it is stuck open and faulty.
5. Use a scan tool to monitor the Fuel Tank Pressure sensor data. With the gas cap removed, the reading should be close to zero. If not, the sensor may be faulty. A user on YouTube with a 2014 Ram 2500 found corroded wires at the sensor pigtail causing this issue.
6. Inspect all visible EVAP lines running from the engine to the rear of the truck for damage or signs of chewing from rodents, paying special attention to the lines on top of the fuel tank.
7. If no obvious faults are found, perform a smoke test on the EVAP system to pinpoint any hard-to-find leaks.
8. If no leaks are found, contact a dealership to check if your vehicle's PCM has the latest software, referencing the TSBs related to P0441.

Parts You'll Likely Need

• EVAP Purge Valve / Solenoid (OEM #Mopar 4627694AA (6.4L V8), Dorman 911-236 (5.7L V8)) — This is the most frequent failure point for P0441. It's a moving part that gets stuck open or closed, directly causing an incorrect purge flow condition.
  Trusted brands: Mopar, Standard Motor Products (SMP), Dorman
  OEM price range: $40-$70
  Aftermarket price range: $25-$50
• Fuel Tank Pressure Sensor (OEM #4593949AB) — This sensor provides the feedback the PCM uses to verify correct purge flow. If it provides faulty readings, the PCM will incorrectly set a P0441 code. A Ram owner on a forum confirmed this part fixed their P0441.
  Trusted brands: Mopar, Delphi
  OEM price range: $50-$80
  Aftermarket price range: $30-$60
• EVAP Canister Filter Kit (Extreme Duty) (OEM #68478013AA) — For trucks used in dusty environments, the stock filter can clog, causing P0441 and refueling problems. This Mopar kit is the official fix for that specific condition.
  Trusted brands: Mopar
  OEM price range: $50-$90

Related Codes That Often Appear With This One

• P0456 — Indicates a small EVAP leak. A failing component like a purge valve can cause both a flow issue (P0441) and be detected as a leak (P0456). They frequently appear together.
• P0457 — Indicates a leak detected, often interpreted as a loose gas cap. This can appear with P0441 if there are multiple issues or a component is failing intermittently, such as a chewed hose.

Technical Service Bulletins (TSBs) & Recalls

• 18-096-16: PCM update for various codes including P0441.
• 18-042-15: PCM update for various codes including P0441.
• 1800414: PCM update for various codes including P0441.
• 18-004-14: PCM update for various codes including P0441.
• 25-001-21: Addresses P0441 caused by clogged EVAP filters in dusty conditions, recommending an upgraded filter kit.

Platform-Specific Known Issues

• A series of TSBs (#18-096-16, #18-042-15, #1800414, #18-004-14) indicate that a PCM software update may be required to fix the logic that triggers P0441.
• TSB #25-001-21 (and its revision) addresses P0441 on trucks in dusty environments, where a clogged canister filter is the cause. The solution is an upgraded dual-filter kit (Part #68478013AA).