spark plug problem

[robtoy_r]

so my explorer has been sitting for about two weeks. i go out and start it today and it was running pretty rough i figured from sitting there so i let it run for a while took it for a ride and when i got home it was still running rough. i popped the hood and was looking around while it was running and i noticed on one of the spark plugs i can see the spark every couple seconds. could the wire have came loose somehow? i tried pushing it on more but the engine was hot so im going to wait till it cools down to try it again, or could it need new plugs? i tried searching around and couldnt find anything so any info would be great

 

[ThePhoenix]

probably bad wire....any idea when the wires and plugs were changed last?

 

[robtoy_r]

not sure i bought it about 2 or 3 months ago i havent been driving it that much but i no they havent been changed since ive owned it, im probably going to just change the plugs but like everyone else says and how it looks its going to be a pain

 

[Turdle]

If you saw arcing it is most likely a bad wire. With 25,000 volts or so going through them it doesn't take much for them to "leak"

If you can afford it, do both wires and plugs.

 

[robtoy_r]

well i got it out and some how its cracked. i changed 3 of the plugs so far, the easiest ones i could get to. they didnt look that bad anyway how bad would it be to just leave the rest for now?

 

[marragtop]

I would do the rest of the plugs. It easiest to get to them thru the fender wells.

 

[robtoy_r]

except for the middle one on the drivers side that one looks pretty much impossible, it looks like theres some sort of little pipe or something in the way

 

[ThePhoenix]

yeah, what is that little pipe anyways?