Engine Mechanical problem
1995 Ford Explorer 6 cyl Four Wheel Drive Automatic 135000 miles
Beginning about 4 months ago my Explorer began failing to start after being driven into town to do errands, it would crank and wheeze a little but not catch, after a wait of 5 to fifteen minutes it will start and I drive it home, on two occasions it would not start the next morning either but would eventually start that day or the next, doesn't happen every time, very intermittent. The last time I started it warm (it had been sitting about an hour) it took a moment to catch, emitted a small pop sound and the smell of gas, it hasn't done that before. My Mechanic has not been able to diagnose it because it won't fail when I take it in and as he says, " I don't want to throw parts at it". He has checked the fuel pump thoroughly. Any ideas?