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NHTSA Upgrades Probe into Ford F-150 Truck Brakes
The National Highway Traffic Safety Administration is stepping up its investigation into complaints of partial power brake failure in 2011-2012 model Ford F-150 pickup trucks.
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The National Highway Traffic Safety Administration is stepping up its investigation into complaints of partial power brake failure in 2011-2012 model Ford F-150 pickup trucks.
The probe covers 252,900 trucks equipped with 3.5-liter V-6 EcoBoost engines. NHTSA began studying the issue in June. This week is upgraded the investigation to an engineering analysis, a step that often signals a recall is likely.
The agency’s probe is focusing on failures of an electric brake vacuum assist pump. Ford Motor Co. says the device helps maintain consistent brake pedal feel for the braking system, which relies primarily on a traditional vacuum booster to provide power assist.
But The Detroit News says test data submitted to NHTSA by Ford show the pump’s failure can double or triple the braking force required to stop from 50 mph.
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