my cts 2006 starts and then shut off
my cts was running perfect , I rotated the tires and replaced the tire rods, attempted to start and it did start and shut off after 3 seconds. gas tank is half , NO CODES REGISTERED .
When everything else fails ,,, disconnect the positive battery cable for 10 seconds then reconnect .. it will clear any anomalies that may be lurking in the ECU, Use your spare key ,,, the battery inside your key may be bad Make sure you don't see "security" displayed /// a sign of a security issue is it will start then run a few seconds then quit
It could be your purg sencer my Cadillac cts was doing that that's whT is was
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