What's "d/c"?
If you have oil inside the distributor, it is condensing there after seeping past the seal around the shaft inside the housing. A common cause is in ineffective PCV system, and the common symptom is a no-start from the oil collecting on the optical sensor. I imagine it could also cause intermittent misfiring too.
Oh; does "d/c" mean distributor cap?
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Wednesday, May 4th, 2011 AT 7:18 PM