The Chevrolet Colorado and GMC Canyon Diesels are feeling the backlash of the Volkswagen diesel scandal. According to Automotive News, General Motors has been told by EPA and California Air Resources Board (CARB) will not certify the trucks until they have undergone tests in the lab and on the road.
“The EPA and CARB told us they are going to do on-road testing," said Scott Yackley, assistant chief engineer for Chevrolet Trucks.
GM says the additional testing could push back the launch of the diesel trucks, which are expected to launch in the fourth quarter. But GM is confident that the trucks will pass the tests.
“Part of our development process is on-road and off-road [laboratory] testing,” said Yackley.
Source: Automotive News (Subscription Required)