P0446 2012 Ford Fusion Code - EVAP System Vent Control Circuit
Quick Answer
The Evaporative System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. Common causes include Missing Fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close. 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 Missing Fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close.
- 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.
Code P0446 2012 Ford Fusion Description
This solenoid valve responds to signals from the Engine Control Module (ECM). When the ECM sends an ON signal, the coil in the solenoid valve is energized. A plunger will then move to seal the canister vent. The ability to seal the vent is necessary for the on board diagnosis of other evaporative emission control system components.
This solenoid valve is used only for diagnosis, and usually remains opened.
What are the Possible Causes of the DTC P0446 2012 Ford Fusion?
- Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Vent control valve harness is open or shorted
- Vent control valve circuit poor electrical connection
- Faulty vent control valve
How to Fix the DTC P0446 2012 Ford Fusion?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0446 2012 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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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.
Click here to enlarge image -
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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