Federal Agency Investigating Ford F-150s for Loss of Power
NHTSA, the federal safety agency, has opened an investigation of complaints by owners of 2011-2013 Ford F-150 trucks with the 3.5L GTDI engine. This engine is the V-6 EcoBoost engine that Ford advertises so heavily on TV.
Owners have complained of unexpected sharp reductions in power during hard acceleration at highway speeds, such as passing other vehicles. Ford is well aware of the problem having issued three technical service bulletins to its dealers.
This investigation and the complaints are probably of some concern to Ford since the F-150 is Ford's best selling vehicle and the models being investigated number about 400,000.