P0442 on a Volvo: Causes, Fixes & Repair Cost

🟢 Low severity · drivable

Safe to keep driving — this is an emissions leak, not a mechanical issue — but fix it before your next emissions test.

What P0442 means on a Volvo

On a Volvo, P0442 means the engine computer found a small leak in the evaporative emission (EVAP) system that stores fuel vapors from the tank. Volvo monitors fuel system pressure, so a small leak in a hose, valve, or seal sets the code. The car keeps running and driving normally.

Is P0442 common on Volvos?

P0442 shows up on Volvos as the EVAP hoses and valves age, with a loose gas cap being the first thing to check on this brand. Cracked rubber lines near the engine and a worn purge valve are common follow-ups. It is an emissions issue, not a drivability issue.

Commonly reported on: XC60, XC90, S60, V60.

Symptoms

Check engine light on
Possible faint fuel smell
No drivability symptoms

Common causes

most common: Loose, missing, or failing gas cap
common: Cracked or aged EVAP hoses
common: Faulty purge valve
less common: Leak at the fuel filler neck seal

How to fix it

Fix	DIY?	Typical cost
Tighten or replace the gas cap	Yes	$10–30
Replace cracked EVAP hoses	Yes	$20–80
Smoke test the EVAP system to locate the leak	Mechanic	$50–150
Replace the purge valve	Yes	$70–170