P0446 Dodge Code - EVAP Purge Solenoid Stuck Open
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 Dodge indicates EVAP Purge Solenoid Stuck Open.
- 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 Dodge 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 Dodge?
- 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 Dodge?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0446 Dodge 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 Dodge Code
1. What does the OBDII code P0446 mean on a Dodge?
P0446 indicates a problem with the EVAP (Evaporative Emission Control System) vent control circuit, often caused by the purge solenoid being stuck open.
2. What are the symptoms of a P0446 code in a Dodge vehicle?
Common symptoms include a Check Engine Light, increased fuel odor near the vehicle, and potentially a slight drop in fuel efficiency.
3. What causes the P0446 code in Dodge vehicles?
The code can be triggered by a stuck-open purge solenoid, a clogged or damaged EVAP vent valve, faulty wiring, or even a damaged charcoal canister.
4. Can a loose gas cap cause a P0446 code on a Dodge?
While a loose gas cap often triggers other EVAP codes, it’s less likely to cause P0446. However, it’s worth checking as part of initial diagnostics.
5. How do I diagnose the P0446 code on my Dodge?
Start by inspecting the gas cap, EVAP canister, purge solenoid, and vent valve for damage or leaks. Use a scan tool to test EVAP system components if no visible issues are found.
6. Is it safe to drive with a P0446 code on a Dodge?
Yes, it’s generally safe to drive with this code, but ignoring it can lead to increased emissions and may eventually damage other EVAP components.
7. How do I fix the P0446 code in my Dodge?
Repairs may include replacing the stuck-open purge solenoid, cleaning or replacing the vent valve, repairing damaged wiring, or replacing the charcoal canister.
8. How much does it cost to repair a P0446 code on a Dodge?
The repair cost can range from $100 to $400, depending on whether the purge solenoid, vent valve, or other EVAP components need replacement.
9. Can a P0446 code cause my Dodge to fail an emissions test?
Yes, a P0446 code typically results in an automatic failure of an emissions test due to a malfunction in the EVAP system.
10. Can a scan tool clear the P0446 code on my Dodge after repairs?
Yes, after resolving the issue, a scan tool can clear the code. However, the code may return if the underlying problem persists.
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