rough idle And missing out while driving on 1999 Ford Expedition

rough idle missing out,stumbling ,hesitating while driving

by in Blanco, TX on June 26, 2010
2 answers
ANSWER by , June 26, 2010
plugs and coils are a good start. labor intensive if you have rear heat Roy
ANSWER by , February 26, 2016
I CHANGE THE PVC VALVE AND ITS STILL RUNNING ROUGH HIGH RPMS BEFORE CHANGING GEARS WHAT COULD BE THE PROBLEM