P0446 2012 Ford Fusion Code - EVAP System Vent Control Circuit
Quick Answer
The P0446 code on a 2012 Ford Fusion indicates a problem with the EVAP (Evaporative Emission Control) system's vent control circuit. Common causes include Faulty Vent Control Valve: The vent control valve may be stuck open or closed, causing the circuit to malfunction, Damaged Wiring: Wiring connected to the vent control circuit may be frayed, corroded, or damaged, disrupting the flow of electrical signals, Loose Gas Cap: A loose or improperly sealed gas cap can trigger the P0446 code by allowing fuel vapors to escape. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P0446 2012 Ford Fusion indicates EVAP System Vent Control Circuit .
- Common causes
- Common causes include Faulty Vent Control Valve: The vent control valve may be stuck open or closed, causing the circuit to malfunction, Damaged Wiring: Wiring connected to the vent control circuit may be frayed, corroded, or damaged, disrupting the flow of electrical signals, Loose Gas Cap: A loose or improperly sealed gas cap can trigger the P0446 code by allowing fuel vapors to escape.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code P0446 2012 Ford Fusion Description
The P0446 code on a 2012 Ford Fusion indicates a problem with the EVAP (Evaporative Emission Control) system's vent control circuit. The EVAP system is designed to capture and store fuel vapors from the fuel tank to prevent them from escaping into the atmosphere. The vent control circuit is responsible for controlling the flow of vapors into the engine to be burned off.
Common Causes of P0446 2012 Ford Fusion
- Faulty Vent Control Valve: The vent control valve may be stuck open or closed, causing the circuit to malfunction.
- Damaged Wiring: Wiring connected to the vent control circuit may be frayed, corroded, or damaged, disrupting the flow of electrical signals.
- Loose Gas Cap: A loose or improperly sealed gas cap can trigger the P0446 code by allowing fuel vapors to escape.
- EVAP System Leak: A leak in the EVAP system can also cause the vent control circuit to malfunction.
Symptoms of P0446 2012 Ford Fusion
- Check Engine Light: The most common symptom associated with the P0446 code is the illumination of the check engine light on the dashboard.
- Rough Idle: A malfunctioning EVAP system can cause the engine to run rough or idle erratically.
- Fuel Smell: A strong smell of fuel, especially around the vehicle's fuel tank, can indicate a problem with the EVAP system.
- Failed Emissions Test: If the EVAP system is not functioning properly, the vehicle may fail an emissions test.
How to Fix P0446 2012 Ford Fusion
- Check Gas Cap: Start by checking the gas cap to ensure it is properly sealed. Tighten or replace the gas cap if necessary.
- Inspect Wiring: Inspect the wiring connected to the vent control circuit for any damage or corrosion. Repair or replace any damaged wiring.
- Test Vent Control Valve: Test the vent control valve to determine if it is functioning correctly. Replace the valve if it is faulty.
- Clear Codes: Use an OBD-II scanner to clear the P0446 code from the vehicle's computer after completing the repairs.
- Perform Smoke Test: If the issue persists, perform a smoke test to detect any leaks in the EVAP system that may be causing the problem.
Cost to Fix P0446 2012 Ford Fusion
The cost of repairing a P0446 code on a 2012 Ford Fusion can vary depending on the specific cause of the issue. On average, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. This brings the total estimated cost to repair the EVAP system vent control circuit to approximately $150 to $500. It's important to note that labor rates at auto repair shops can vary, so it's recommended to check with local shops for more accurate pricing.
Tech Notes for P0446 2012 Ford Fusion
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Frequently Asked Questions about P0446 2012 Ford Fusion Code
1. What does OBDII code P0446 mean for a 2012 Ford Fusion?
- OBDII code P0446 on a 2012 Ford Fusion indicates a problem with the EVAP system vent control circuit.
2. What are common symptoms of a P0446 code in a 2012 Ford Fusion?
- Common symptoms of a P0446 code may include the check engine light coming on, rough idling, decreased fuel efficiency, and a gasoline odor.
3. What are the possible causes of a P0446 code on a 2012 Ford Fusion?
- The P0446 code on a 2012 Ford Fusion can be caused by a faulty vent control valve, damaged EVAP system hoses, a clogged charcoal canister, or electrical issues in the vent control circuit.
4. How serious is a P0446 code on a 2012 Ford Fusion?
- While a P0446 code may not cause immediate drivability issues, it can lead to increased emissions and potential long-term damage to the vehicle's emission control system if left unresolved.
5. Can I continue driving my 2012 Ford Fusion with a P0446 code?
- It is generally safe to drive a vehicle with a P0446 code, but it is recommended to address the issue promptly to prevent further damage and ensure proper emissions control.
6. How can I diagnose a P0446 code on my 2012 Ford Fusion?
- Diagnosing a P0446 code involves inspecting the EVAP system components, checking for vacuum leaks, testing the vent control valve, and scanning the vehicle's computer for additional codes or data.
7. Can I repair a P0446 code on a 2012 Ford Fusion myself?
- Depending on your automotive repair skills, you may be able to address a P0446 code yourself by replacing the vent control valve, repairing damaged hoses, or clearing obstructions in the EVAP system.
8. How much does it typically cost to repair a P0446 code on a 2012 Ford Fusion?
- The cost of repairing a P0446 code on a 2012 Ford Fusion can vary depending on the specific issue, but it generally ranges from $100 to $300 for parts and labor.
9. Are there any preventive maintenance tips to avoid a P0446 code on a 2012 Ford Fusion?
- To prevent a P0446 code, it is recommended to regularly inspect and maintain the EVAP system components, avoid overfilling the fuel tank, and address any check engine light issues promptly.
10. Will a P0446 code on a 2012 Ford Fusion affect the vehicle's emissions test?
- Yes, a P0446 code may cause your 2012 Ford Fusion to fail emissions testing, as it indicates a problem with the vehicle's evaporative emission control system.
Discuss the causes and fixes for P0446 2012 Ford Fusion OBDII Code
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Code P0446. Changed the purge valve and cleared the code but after a few minutes of driving the CEL comes back on. Then I squirted WD-40 around the flapper in the fuel fill orifice and let that soak. I also used a paper towel and WD 40 to wipe clean the rubber gasket seals on the swing open gas fill access door and the recess in the body work. Cleared the code and a few minutes later the CEL lights up again. What am I missing?. 2013 Ford Taurus with 3.5 V-6. No particular event happened to cause the CEL to come on the first time. It had been a few days since filling the tank and it was approx. 3/4 filled when light came on while driving. Any thoughts what I need to check next? The Taurus has 55,000 miles on it.Never a hiccup before.
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The most likely cause of the P0446 for your 2012 Ford Fusion is the EVAP Canister Vent Solenoid (Grey part on the image), which is attache to the EVAP Canister on the back of your vehicle.
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Finally took it in to the Ford dealer and they ran system diagnostics. Said all indications were pointing to wiring harness on top of gas tank. So they dropped the exhaust system and pulled the gas tank and found a mouse nest on top of the tank with all wiring chewed apart except for the fuel pump. They took me back and showed me the carnage. Little bastards cost me over $800,
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