Investigating a potential class action lawsuit against the various automakers who use soy-based wiring.  In recent years, the automakers have aimed to make the cars more environmentally friendly; therefore, petroleum-based insulation has been replaced with soy insulation.  Wire material has also changed; these changes lend to an increased rodent problem under the hood of the car.  Problems can range from the vehicle not starting, to the check engine light coming on, to the vehicle running poorly. It might take a couple of months or going over a hard bump to spark a previously-chomped on wire problem to the surface.  Costs vary depending on the damage; consumers have reported repairs between $600 and $1,500 and beyond.  This damage is not covered by the warranty.  If you experienced vehicle damage to your soy-based wiring, please submit your information below.