Check engine light
The check engine light keeps coming on in
my sts v6 but no code is coming on the
dash. I replace battery a few days ago and it
went off and now its back on
also.. get codes from pepboys or a store that can hook the diagnostic reader. not too sure until OBDII gets read. maybe.. try a new gas cap.
Search Cadillac STS Questions
Cadillac STS Experts