2004 Jeep Liberty check engine light

2004 JEEP LIBERTY
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LAG524
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2004 Jeep Liberty 6 cyl Four Wheel Drive Automatic

My check engine light came on so I opened my gas cap and retighened it. About 5 days later my check engine light went out. About 5 days later the check engine came back on so I did the same thing and the same thing happened. My check engine just came on again today what should I do?
Jul 14, 2010 at 2:10 PM
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