Strange as it might seem, the yellow sac spiders have been creating nests in the evaporative canister vent line. According to a letter that Mazda sent to the National Highway Traffic Safety Administration (NHTSA), "A certain type of spider may weave a web in the evaporative canister vent line and this may cause a restriction of the line."
If the line becomes restricted by the yellow sac spider nests, the clogs could lead to fuel leaks and fires. That's the worst case scenario, however. Dealers around the United States have found 20 cases of the arachnid infestation, but no severe ramifications.
Jeremy Barnes, a spokesman for Mazda North American Operations said, "We really don't know how they're getting in. I'd think it would be pretty tricky, but spiders are resourceful." The spiders are infesting only 4-cylinder models, not the 6-cylinder model, for some reason.
Yellow sac spiders, genus Cheiracanthium are found from northern Europe to Japan, from Southern Africa to India and Australia. The only known species in the New World are C. inclusum and C. mildei. It's Cheiracanthium inclusium that Mazda said is infesting its cars.
The yellow sac spider does not produce webs. Instead they construct sacs in protected areas. The vent line is a perfect place for them. It is the The sacs they create that has given them their name. They can cause a painful bite, but apparently have not bitten any Mazda mechanics. The bite can turn into a necrotic lesion in some cases.
The only positive from this incident is that Mazda can point to mother nature and not themselves, for this recall. For more information, Mazda6 owners should call their local dealer or the NHTSA's vehicle safety hotline: 1-888-327-4236.
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