OK, The check engine light came on so we took it to the Ford dealer... they said it's the fuel system (narrowed it down considerably). They changed the fuel filter and the pcv. Light is still on. They said it could be the injectors, we ran the prescribed cleaner through the thing, refueled light went out as advertised... for about half a day. Back to the Ford place we went, they said... it's probably the plugs and wires. We changed the plugs and wires... light is still there. A friend said it could be the O2 sensor, we went to Auto Zone, they scanned it, said it was the fuel system running lean. We went back to the Ford place, the light went out... divine intervention? Nope, light came back on! We ran the car down to less than
1/4 tank of gas and the light went out. Filled with 89 octane and the light came on but only for about 5 miles... then went back out and hasn't came on in three days now. The light still works (at least when you turn the key on) so we are hoping it has fixed itself.Anyone heard of this or have any advice? Anything would be appreciated.
tia