P0442 on a 2013 Honda Cr V
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 2013 Honda Cr V
Ranked from 381 NHTSA owner complaints filed for this vehicle.
- 1
Rodent damage to a fuel or EVAP system line
Medium severityOne owner had high-pressure fuel lines punctured by squirrels, leaking fuel into the engine bay in two separate incidents — rodent-chewed EVAP/fuel lines are a well-known leak source on vehicles that sit outdoors.
Reported in 1 NHTSA complaint - 2
- 3
Loose or damaged fuel filler cap
High severityThe single most common cause of a small EVAP leak code; check the cap seals and threads first.
Common causeParts:fuel cap - 4
Rusted or corroded fuel tank / filler neck
High severityCorrosion at tank seams or the filler neck is a known small-leak source as these vehicles age.
Common cause - 5
Charcoal canister crack
Medium severityA hairline crack in the canister housing is a classic small-leak source.
Common causeParts:charcoal canister - 6
EVAP purge or vent valve malfunction
Medium severityA valve that won't fully seat lets a small amount of outside air bypass the seal check.
Common cause
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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.
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