Vehicle Compatibility Information Ford Expedition 5.4L 2005-2014 Ford F-150 5.4L 2005-2010 Ford F-250 Super Duty 5.4L 2005-2010 Ford F-350 5.4L 2005-2006 Ford F-350 Super Duty 5.4L 2005-2010 Ford Lobo 5.4L 2005-2010 Lincoln Mark LT 5.4L 2006-2008 Lincoln Navigator 5.4L 2005-2014 Does throttle body need to be replaced? The throttle body plays a large role in controlling the fuel and air mixture in your engine.The proper mixture needs to be achieved in order for your engine to run smoothly and properly. Once this part fails, it needs replacing rather than repairing. When you need to replace the throttle body: .
