Thanks Volkswagen! GM Diesel Trucks Won't Be Certified Until They Go Under The EPA Microscope

General Motors is the first automaker to feel the backlash from the Volkswagen diesel emissions cheating scandal.

GM has been told by the EPA and the California Air Resources Board that the new diesel-powered versions of the Chevrolet Colorado and GMC Canyon pickups will not be certified until they have been tested on the road as well as in the lab.

The sales launch of the trucks, which is scheduled for the fourth quarter, could be delayed slightly by the additional testing, GM says.

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