P0442 on Your 2024 Dodge Hornet
A P0442 code on your 2024 Dodge Hornet indicates a small evaporative emission system leak. As a relatively new model on the Alfa Romeo Tonale platform, any EVAP issues should be covered under your Stellantis warranty.
EVAP System Details
The 2024 Hornet's turbocharged 2.0L Hurricane engine (GT trim) or 1.3L turbo PHEV (R/T trim) uses a conventional EVAP system with a purge solenoid, charcoal canister, and canister vent solenoid. Unlike traditional Dodge vehicles with NVLD, the Hornet's European-derived platform uses standard pressure-based EVAP monitoring. For the R/T PHEV, note that EVAP monitors run only when the gasoline engine is operating.
Common Causes
- Gas cap not fully seated (45%) — The most frequent trigger on newer vehicles.
- Gasket contamination (20%) — Debris preventing a proper gas cap seal.
- EVAP connection issue (15%) — A factory fitting that loosened during early driving.
- Purge solenoid valve defect (10%) — A manufacturing seal imperfection.
- Software calibration needed (10%) — EVAP monitoring parameters may need updating on this newer platform.
Recommended Action
Check and reseat your gas cap. If the code persists, bring your Hornet to a Dodge dealer. The dealer's wiTECH system can diagnose platform-specific EVAP issues and check for applicable software updates or TSBs.
Cost Estimates ($0 Under Warranty)
- Gas cap: $15–$40
- EVAP hose repair: $80–$240
- Purge solenoid valve: $130–$300
- Canister vent solenoid: $120–$280
- Software update: $0–$150
Warranty
Your 2024 Hornet is fully covered under the 3-year/36,000-mile basic warranty and 5-year/60,000-mile powertrain warranty. All P0442 repairs should be free under warranty.