When starting our Explorer, it would turn over then once I took my foot off the gas it would die. This had happened a couple of times over the years when it was cold or left unstarted for a few days but would usually start after a couple of tries. Then a couple of weeks ago it just wouldn't start at all. After tons of research and questions to mechanics, who mostly and incorrectly thought it was a fuel injection problem we decided not to bring it in just yet and wanted to try to fix it ourselves and save some money. We changed the Idle Air Control Valve. One quick switch and it started right up! So, thanks to all of those people who wrote in on this and other complaint sites and correctly helped to solve my problem!!!

Upon starting my Explorer Sport, the engine would turn over but it immediately died. First I thought it was a fuel injector/fuel filter problem, and I fixed it. That helped for awhile, but it started getting cold again. This seemed to cause the problem, the cold weather. It began again and now it would sometimes turn over and the car would run, but now it was a rough idle, somewhere in the neighborhood of 250-300 RPM. Now, the check engine light came on. I had the codes run and it was a problem with the air intake system and the manifolds on top of the engine. A mechanic hypothesized that it was the rubber o-rings in the manifolds that became shrunken and would not assure correct airflow into the system. Currently being fixed at the moment.