Ford facing emissions investigation

Ford has said the Justice Department has opened a criminal investigation into its US emissions certification process.

The carmaker said in a regulatory filing the “matter currently focuses on issues relating to road load estimations, including analytical modelling and coastdown testing”.

Last September, a group of employees reported possible problems with a mathematical model used to calculate pollution and mileage, prompting Ford to hire an outside firm to run tests.

Ford Motor voluntarily disclosed the matter to the Environmental Protection Agency in February.