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"O" ring leak on top of engine where distributor used to be.

(2003 Buick Century)
in Mesa, AZ on December 29, 2010
Leak is not sever, but is constant.
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Popular Answer
on December 29, 2010
That piece has an O-ring. the O-ring is bad. A common problem. A good tech can replace that O-ring without taking the upper plenium off. Not to expensive.
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