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Replaced spark plugs in which I had to remove upper intake as well as egr connector tube with flange to remove intake. Replace plugs and reinstalled intake. Torque bolts to specs and ran vehicle. Filled up this morning and noticed fuel leaking near tank. Check filler tube, no breaks but noticedon't leak coming from top of fuel tank. Check engine light came on with code of P0406. Reset code and drove 50 miles. No light any more but minimal leak here and there.  Any ideas
Vehicle: 2008 chrysler 300 v6 2.7

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You can check the fuel pump by removing the rear seat and access the fuel pump, just to inspect to see if the leaks are coming from the fuel pump

You can remove the rear seat and the fuel pump cover to check to see if the fuel pump has developed a leak, just to rule that area out.

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