2003 Saturn L300 Q&A
2003 Saturn L300 Question: EGR Valve Replacement or Cleaning?
Why do you think there is an EGR issue? In order to really clean this you need to remove it and carefully clean all of it and the passages as well. Then you need to do an EGR re-learn, which takes a good scanner, but yes try cleaning it at first. Get a new gasket as it will need replacing. - dandd
CHECK engine light came on - codes checked - was told temp sensor or thermostat. Got 2nd opinion -told me thermostat stuck open - made appt to be fixed. Next day , about 30 minutes of driving - ...