What does code P0442 mean on a Volvo and is it safe to drive?
P0442: Evaporative Emission System Leak Detected (Small Leak). Here's what it means on your Volvo, 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 EVAP system has detected a small leak. Often caused by a loose or faulty gas cap or a small hose leak.
Common causes for your Volvo
- Loose, damaged, or wrong gas cap
- Cracked or disconnected EVAP hose
- Faulty purge or vent valve
- Leaking charcoal canister
Symptoms
- Check Engine Light
- Often no driveability issues
Typical fixes
- Tighten or replace gas cap
- Smoke test EVAP system
- Replace damaged hoses or valves
Repair cost range
For a Volvo, repairs for P0442 often fall between $15 and $300, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Volvo
Volvo P0442 on T5 and T6 engines is typically a gas cap or EVAP hose crack. On older XC90 models, the EVAP canister under the rear of the vehicle is prone to cracking from road debris and moisture.
Most commonly affected models
S60 2011–2018XC60 2010–2017XC90 2003–2014