
NHTSA upgrades Stellantis probe involving Bosch fuel pump failures
WASHINGTON — The nation’s top auto safety regulator has upgraded its investigation of high-pressure fuel pump failures in certain heavy-duty Ram diesel trucks. According to a document made public Tuesday, NHTSA’s Office of Defects Investigation is expanding its safety probe to include the Tier 1 supplier Robert Bosch, which makes the high-pressure fuel pumps. The