What does code P0446 mean on a Jeep and is it safe to drive?
P0446: Evaporative Emission System Vent Control Circuit. Here's what it means on your Jeep, what usually causes it, what repairs typically cost, and how safe it is 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 for your 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 Jeep, repairs for P0446 often fall between $150 and $450, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
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