What does code P0440 mean?

Code P0440 means there is a general fault or leak in the evaporative emission control system, also called the EVAP system, which captures and contains fuel vapors. The most common and simplest cause is a loose, cracked, or missing gas cap, so checking and tightening the cap is the first step. If that does not resolve it, the leak may be in an EVAP hose, the purge valve, the vent valve, or the charcoal canister. Because EVAP leaks can be tiny and hard to find, technicians use a smoke test to locate them precisely. At Motoro Cars in Miami, our ASE-certified, AAA-approved technicians use computerized diagnostics and smoke testing to pinpoint EVAP leaks instead of guessing. Call Wynwood at (786) 634-2002 or Doral at (786) 633-3220 to get your P0440 code properly diagnosed and your emissions system sealed.