Lincoln Navigator Engine Idle Rough

Hi, My Suv Has No Check Engine Light On But Starts Rough, When At A Stop It Idles So Hard It Violently Shakes Back And Forth You Can See The...

I Did All The Work Myself Valve Cover Gasket, Spark Plugs Replaced, Egr Valve And Sensor Replaced All Brand New 02 Sensors Four, Coolant...

I Have A 1998 Lincoln Navigator With A 5.4 V8 And 90400 Miles. The Truck Runs Fine Except For A Rough Idle(slight But Noticible Shaking) In...