"O" ring leak on top of engine where distributor used to be. on 2003 Buick Century

Leak is not sever, but is constant.

by in Mesa, AZ on December 29, 2010
1 answer
ANSWER by , 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.