http://www.consumerclasslawyersblog....ford-ecoboost/

"Consumers who own or lease vehicles equipped with Ford's EcoBoost engine have reported hundreds of reliability and safety issues. Many such complaints relate to the EcoBoost engine suddenly and unexpectedly shuddering, shaking violently, stumbling, misfiring, rapidly losing power, or going into limp mode while a driver is operating the vehicle. Some consumers report sudden shutdown of their EcoBoost vehicle or total loss of power. This often happens when vehicles are operating at highway speeds or are otherwise accelerating and is often accompanied by loss of control of the vehicle, loss of power steering, loss of airbag functionality, and loss of use of locks and windows. This creates a dangerous condition for the driver, their family and other passengers, and other drivers on the road.

These dangerous conditions are likely caused by a defect in Ford's design of the EcoBoost engines. Despite the dangerous vehicles often being under warranty when the defect manifests, consumers have reported that Ford refuses to repair the EcoBoost engine and make these vehicles safe to operate. Often, when consumers who suffer from these dangerous conditions take their vehicles to Ford-authorized dealerships, the dealerships tell the consumers that they cannot re-create the problem and thus cannot repair the EcoBoost engines. In some instances, if consumers complain enough, the Ford dealerships make an inadequate repair (replacing the MaP sensor), which does not actually fix the defect. Many consumers report that their EcoBoost engines have shutdown or stalled multiple times--even after the Ford dealerships claim to have made repairs. Yet, Ford continues to deny a problem exists or provide an adequate repair for the EcoBoost engines."