Starting in 2011, Ford and General Motors began using Bosch Mobility CP4 pumps to provide high pressure fuel to their diesel engines. GM used the pump on its 6.6-liter LGH and LML Duramax diesel ...

The fuel pressure regulator diaphragm may become damaged, causing a fuel leak. View full recall details at NHTSA.gov. Costco shoppers urged to stop using some recalled items immediately.