2005 Pontiac Grand Prix Check Gas Cap Engine Lights Came On Changed They Went

2005 PONTIAC GRAND PRIX
145,000 MILES
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My check gas cap and check engine lights came on so i changed the gas cap and they went off and a few days later the came on again so i just changed the vent valve solenoid and i was wondering how long does it take them to go off or do i still have a problem?
Apr 9, 2013 at 5:07 PM
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JACOBANDNICKOLAS
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Give it 100 miles. If it doesn't go off, have it done with a scanner.
Apr 9, 2013 at 5:24 PM
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