2018 Jeep P0446: What It Means & Is It Safe to Drive?
P0446 on the 2018 Jeep: Evaporative Emission System Vent Control Circuit. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
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What this code means
The PCM has detected a problem with the EVAP vent control circuit, often caused by a stuck or failed vent valve.
Common causes on the 2018 Jeep
- Failed EVAP vent solenoid
- Corroded wiring or connector at vent valve
- Blocked vent due to dust, rust, or spider webs
Symptoms
- Check Engine Light
- Possible difficulty filling fuel tank (nozzle keeps clicking off)
Typical fixes
- Replace EVAP vent valve/solenoid
- Clean or clear vent and charcoal canister area
- Repair wiring
Repair cost range
For a 2018 Jeep, repairs for P0446 typically fall between $150 and $450, depending on the root cause and labor rates in your area.
Known issues on Jeep
Jeep P0446 canister vent solenoid on Wrangler and Liberty is mounted in a vulnerable location under the body. Offroad use accelerates failure from debris and water contact. Replace the solenoid and inspect the canister hose for cracks simultaneously.
Most commonly affected models
Grand Cherokee 2000–2010Liberty 2002–2007Wrangler TJ/JK 1997–2018