RE: 99 Explorer Rough Idle, hard to start
I have that same problem with the same year, same engine, but my mileage is about 115,000~.. It's pretty frustrating. I'm thinking the low idle control valve may be the issue with mine, I've done a full tune up (plugs wires, oxygen sensors, injectors. fuel filter.) Mines kind-of rough, but not too rough, but it runs like a top when it warms up.