P0442 on a 2015 Chrysler 200

P0442 means the EVAP system could not hold pressure or vacuum during a leak test, but the leak is small.

Not your vehicle? See general P0442 info.

Most common causes on the 2015 Chrysler 200

Ranked from 1,983 NHTSA owner complaints filed for this vehicle.

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1
Loose or faulty gas cap
Medium severity
Two separate owners on this vehicle report an explicit gas-cap warning light alongside the check-engine light.
Reported in 2 NHTSA complaints
Parts:gas cap
2
Cracked or leaking fuel tank/filler assembly
Medium severity
Two separate owners report a fuel leak traced to the fuel tank itself, a component shared with the EVAP system's vent/vapor lines.
Reported in 2 NHTSA complaints
Parts:fuel tank
3
Vapor (EVAP) system leak reported directly by an owner
Medium severity
One owner explicitly describes a "vape leak" (vapor leak) issue among a cluster of dash warnings on this vehicle.
Reported in 1 NHTSA complaint
4
Cracked or perished EVAP purge/vent lines
Medium severity
Small EVAP hoses harden and crack with age and underhood heat, producing a small vapor leak.
Common cause
5
Purge or vent valve failure
Medium severity
A leaking or stuck purge/vent valve prevents the EVAP system from sealing and holding vacuum during self-test.
Common cause
Parts:purge valve vent valve
6
Charcoal (EVAP) canister cracks
Medium severity
A cracked canister housing is a common source of a small EVAP leak.
Common cause
Parts:EVAP canister
7
Rusted fuel filler neck
Low severity
Corrosion can perforate the filler neck, creating a slow vapor/liquid leak near the gas cap seal.
Common cause
Parts:fuel filler neck

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These causes are aggregated from NHTSA owner complaints and general repair knowledge — this is not a diagnosis. P0442 on your car still needs shop confirmation before any repair.

Common symptoms

Check engine light
Fuel smell near vehicle
Usually drives normally
Hard start after fueling in some cases

What to check before replacing parts

Tighten and inspect the gas cap

Look for: A cap that doesn't click to full tightness, has a visibly cracked or flattened seal, or is simply missing is the single most common cause of a small EVAP leak — rule it out first.

Smoke-test the EVAP system

Look for: Because this is a small leak, expect only a thin wisp of smoke or a faint hiss at one spot (a hose, seam, or valve) rather than an obvious cloud — look closely and take your time.

Check purge valve sealing

Look for: A purge valve that doesn't hold vacuum when commanded closed lets a small amount of air bleed through, which the system reads as a leak during its self-test.

Inspect hoses near the tank and engine bay

Look for: Look for small cracks, soft/collapsed spots, or a hose that has pulled loose slightly at a fitting — any of these can leak just enough to trip a small-leak code without an obvious fuel smell.

Verify vent valve operation

Look for: A vent valve that doesn't seal fully when commanded closed prevents the system from holding vacuum during its self-test, which reads as a small leak even with no physical leak in the hoses.

Rather have a pro handle it? Find a vetted local mechanic.

Matching symptoms

Check Engine Light