Misfire

[wtoti]

Guy,
My 2000 Caravan 3.3 came out of the shop with new spark plug and new wires but 2 month after, it got misfire, spark on the first cylinder doesn't look good. it was all wet and dirty. I put in new sparks and now it running fine.yet the mechanic cant figure out what had happened but he thinks it will happen again. does anyone have a suggestion of what may be the cause of the misfire so i can work on this problem before it happen again.
:rck: :rck:

[Dodgevanman]

If the plug is fouling with oil, that would cause the misfire. Sounds like a possible bad cylinder. Do a compression check.

[77Utiline]

You may have a leaky injector if the plug was fuel fouled.