2021 Dodge P0440: What It Means & Is It Safe to Drive?
P0440 on the 2021 Dodge: Evaporative Emission System Control System Malfunction. 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
A general fault in the EVAP system—could be a leak, stuck valve, or sensor issue.
Common causes on the 2021 Dodge
- Gas cap loose or faulty
- Purge or vent valve stuck
- Charcoal canister or hose leak
Symptoms
- Check Engine Light
Typical fixes
- Replace gas cap
- Test purge/vent valves
- Smoke test EVAP system
Repair cost range
For a 2021 Dodge, repairs for P0440 typically fall between $20 and $400, depending on the root cause and labor rates in your area.
Known issues on Dodge
Dodge P0440 on Durango and Caravan most commonly comes from the NVLD module mounted near the fuel tank. The NVLD switch and pump are common failure points—inspect the NVLD hose connections for cracks before replacing the module.
Most commonly affected models
Durango 2000–2009Grand Caravan 2001–2007Dakota 2000–2007