"The valve cover gasket may leak," said NHTSA in its recall summary. "The leaking engine oil can drip onto the hot surface of the exhaust manifold, increasing the risk of a fire."
A GM spokesman did not immediately respond to a query from Edmunds asking if there are any fires, injuries or fatalities linked to the recall.
The affected Regals were built from April 9, 2003 to June 26, 2003. The affected Impalas were built from April 8, 2003 to June 25, 2003. The affected Monte Carlos were built from April 7, 2003 to June 25, 2003.
Vehicles equipped with a 3.8-liter V6 supercharged engine will also have the left valve cover gasket replaced.
Edmunds says: Owners of these vehicles should wait for their official recall notice and then schedule a service appointment with their dealer. But if you have an immediate concern, it's best to contact your dealer now.