P0442 2012 Ford Fusion Code - Evaporative Emission System Leak Detected Small Leak
Quick Answer
The Powertrain Control Module (PCM) monitors the complete evaporative emission (EVAP) control system for the presence of a small fuel vapor leak. Common causes include Missing or loose 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
- P0442 2012 Ford Fusion indicates Evaporative Emission System Leak Detected Small Leak.
- Common causes
- Common causes include Missing or loose 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 P0442 2012 Ford Fusion Description
What are the Possible Causes of the DTC P0442 2012 Ford Fusion?
- 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
How to Fix the DTC P0442 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 P0442 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 P0442 2012 Ford Fusion Code
1. What does the OBDII code P0442 mean on a 2012 Ford Fusion?
P0442 indicates a small leak has been detected in the vehicle's evaporative emission control (EVAP) system, which is responsible for preventing fuel vapors from escaping into the atmosphere.
2. What are common symptoms of a P0442 code on a 2012 Ford Fusion?
The most common symptom is an illuminated Check Engine Light. In most cases, there are no noticeable driving issues or performance problems.
3. What causes a P0442 code on a 2012 Ford Fusion?
Common causes include a loose or damaged gas cap, a cracked or disconnected EVAP hose, a faulty purge valve, or a leak in the EVAP canister or fuel tank.
4. Can a loose gas cap trigger a P0442 code on a 2012 Ford Fusion?
Yes, a loose or improperly sealed gas cap is one of the most common reasons for a P0442 code. Make sure the cap is tightened until it clicks.
5. How do I fix the P0442 code on my 2012 Ford Fusion?
Start by checking and tightening the gas cap. If the issue persists, inspect EVAP system components like hoses, the purge valve, and the charcoal canister for damage or leaks.
6. Is it safe to drive with a P0442 code on a 2012 Ford Fusion?
Yes, it is usually safe to drive with this code, as it does not typically affect vehicle performance. However, it's best to address the issue promptly to ensure the EVAP system functions properly.
7. How is a P0442 code diagnosed on a 2012 Ford Fusion?
A technician will use a scan tool to read the code, perform a visual inspection of the EVAP system, and may use a smoke machine to pinpoint the source of the small leak.
8. Can extreme weather cause a P0442 code on a 2012 Ford Fusion?
Yes, extreme heat or cold can cause EVAP system components to expand or contract, potentially leading to small leaks and triggering the code.
9. How much does it cost to fix a P0442 code on a 2012 Ford Fusion?
The cost depends on the cause of the issue. A gas cap replacement may cost $20-$50, while repairing a damaged EVAP hose or valve may range from $100 to $300.
10. Will clearing the P0442 code without fixing it cause problems for my 2012 Ford Fusion?
Clearing the code without addressing the underlying issue will only temporarily turn off the Check Engine Light. The code is likely to return, and your vehicle may fail emissions testing.
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