Report: Ignition Module or Coil May Fail Causing Engine Misfire
Saturn L300 Problem
Engines Affected: 2.2L 4 Cylinder, 3.0L V6
Average Mileage: 76,666 mi (55,000 mi - 90,000 mi)
Visitor, 2005 Saturn L300, 3.0L V6, 90,000 mi
Have had this problem multiple times. 4 in the past 3 years. They replace the spark plugs for around $400 and call it good. I'm thinking there is more to it than that at this point.
Visitor, 2002 Saturn L300, 3.0L V6, 85,000 mi
service engine light came on, and they started mis-firing. diagnosed as failure on plugs 1,3,5.