Ok I Need Some Help. I Am Working On The Girlfriends 2002 Ford Expplorer 4.0l Heres Whats Wrong. Under Light Throttle There Is A Bad Hesitation. She Says It Has Been Doing This Snce She Bought It New And That When She Took It Into The Dealer They Told Her It Was Normal. Well It Is Not Normal. It Only Does It After The Explorer Has Warmed Up. When You First Start Driving It It Is Fine Then Gets Worse. It Idles Fine And Runs Great When There Is More Throttle Applied To It. I Have Changed The Plugs, Wires, Coil, Air Filter, Fuel Filter And Have Cleaned The Maf. And To No Avail It Is Still Doing It. I Have A Obdii Scanne And There Are No Codes Present. I Am About Out Of Ideas. Any Help Would Really Be Appreciated.