P0446 Chrysler 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 Chrysler 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 Chrysler 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 Chrysler?
- 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 Chrysler?
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 Chrysler 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 Chrysler Code
1. What does the OBDII code P0446 mean on a Chrysler?
P0446 indicates a malfunction in the EVAP (Evaporative Emission Control) system, specifically that the purge solenoid is stuck open or there is an issue with the vent control circuit.
2. What are the common symptoms of code P0446 in a Chrysler?
Symptoms may include the check engine light turning on, difficulty starting the engine, a noticeable fuel odor, or reduced fuel efficiency.
3. What causes the P0446 code to appear in a Chrysler vehicle?
Common causes include a stuck or faulty EVAP purge solenoid, damaged or disconnected EVAP hoses, a clogged charcoal canister, or electrical issues such as damaged wiring or a blown fuse.
4. Can I drive my Chrysler with a P0446 code?
While the car may still be drivable, prolonged driving with this code can lead to increased emissions and potential damage to the EVAP system. It's best to address the issue promptly.
5. How do you diagnose a P0446 code in a Chrysler?
Diagnosis typically involves inspecting the EVAP system for damaged hoses, testing the purge solenoid for proper operation, checking for clogs in the charcoal canister, and using a scan tool to monitor EVAP system data.
6. How do you fix a P0446 code on a Chrysler?
Possible fixes include replacing the EVAP purge solenoid, repairing or replacing damaged hoses, unclogging or replacing the charcoal canister, or repairing any electrical wiring issues.
7. How much does it cost to repair a P0446 code on a Chrysler?
The repair cost varies depending on the cause, but replacing an EVAP purge solenoid typically costs between $150 and $300, including parts and labor.
8. Can a loose gas cap cause the P0446 code in a Chrysler?
A loose gas cap is less likely to cause this specific code but can trigger other EVAP-related codes. It’s still a good idea to check and tighten the gas cap as part of your diagnosis.
9. What tools are needed to fix a P0446 code in a Chrysler?
Basic tools include a scan tool or OBDII code reader, a multimeter for electrical testing, and standard automotive tools for removing and replacing EVAP components.
10. Will clearing the P0446 code fix the problem permanently?
No, clearing the code will only temporarily turn off the check engine light. The underlying issue must be repaired to prevent the code from returning.
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