One problem related to engine head gasket leaking has been reported for the 2000 Buick Regal. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Buick Regal based on all problems reported for the 2000 Regal.
Gm replaced front valve cover and gasket under recall, now the rear one is leaking badly. I see no difference from front to rear, it is still the same bad parts, cover and gasket leaking and it is still a fire hazard. I am sure I am not the first one it has happened to.