P0442 means evap system leak detected (small leak). The EVAP system found a small leak — think pinhole size. Fuel vapors are escaping somewhere they shouldn't.
You can keep driving — get it checked when convenient.
The EVAP system found a small leak — think pinhole size. Fuel vapors are escaping somewhere they shouldn't.
Always check first.
Age-related.
Doesn't seal fully.
Hard to see without a smoke test.
Rust-through.
Typically $0–$400
Gas cap free–$30; smoke test + repair typically $150–$400. Estimates vary by vehicle. Costs are estimates and vary by vehicle, location, and shop.
Safe to drive. A smoke test at a shop finds small leaks fast — worth doing rather than guessing.
Typically $0–$400. Gas cap free–$30; smoke test + repair typically $150–$400. Estimates vary by vehicle.
You can keep driving — get it checked when convenient.
The most common cause is loose or worn gas cap. Always check first.