How can I narrow this down? I have just recently noticed that when I drive my Explorer and especially on the highway, when I go to give it gas the vehicle stutters. The check engine light flickers on and off until I let up on the gas. It has new spark plugs, MAF sensor, both oxygen sensors have been replaced, and as well as the vacuum line. Other than that it runs really well, except when you really need to give it gas, it is really getting frustrating! Please help.
Jul 17, 2007 at 12:03 PM