My 2005 Cadillac sts v6 check engine light keeps coming on what could be the problem my macaic says it is the catilicic converter
What codes is the check engine light giving you? You can have them checked for free at the local auto parts store. Use caution if it is a bad convertor you could cause more major issues by continuing to drive it. Are you having any drivability issues?
my problem turned out to be a new gas filler cap - no more check light
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