Mazda · Canada · Crit
Mazda MAZDA6: Fuel System
Affects Mazda MAZDA6 · 2009–2010 — about 10K vehicles.
The hazard
On certain vehicles equipped with the 2.5L engine, a particular type of spider may weave a web in the evaporative canister vent line which may cause a restriction in the line. If this occurs, the fuel tank pressure may become excessively negative when the emission control system works to purge the vapors from the canister. As the canister is purged repeatedly during normal operation, the stress on the fuel tank may eventually result in a crack causing a fuel leak. Fuel leakage, in the presence of an ignition source, could result in a fire causing property damage and/or personal injury. Correction: Dealers will clean the canister vent line and install a spring to prohibit spider intrusion. The Powertrain Control Module (PCM) will be reprogrammed with modified software having a function to avoid excessive negative pressure of the fuel tank. When any damage of the fuel tank and/or presence of a web in the canister vent line are found, the fuel tank and the check valve on the canister vent line will be replaced.
What to do
Contact your dealer; the remedy details were not included in the filing.