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Old 11 Nov 2011, 08:31 pm
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Default Why would the "check fuel cap" warning come up on my honda accord erroneously?

The fuel cap is screwed on tightly but at random times lately the "check fuel cap" warning is showing on my dash.
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Old 11 Nov 2011, 08:46 pm
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The light is saying you have an evap leak. A loose gas cap is usually the main culprit. My advice is to get a new gas cap and if that doesn't work you will need to check your filler neck and fuel lines for an evaporation leak.
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Old 11 Nov 2011, 09:01 pm
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If it is an older Honda it can be the usual causes (including a saturated charcoal canister from overfilling the tank) but if it is relatively new Honda has had trouble with defective (possibly contaminated) charcoal canisters causing repeated and intermittent fuel cap warnings. See the first source.































www.odyclub.com
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Old 11 Nov 2011, 09:17 pm
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This is a newer Honda because, older Honda's don't have a "check fuel cap" lights! You provided very little vehicle information (such as the year and the sub-model of your accord! But if yours has the 2.4L 4 cyl. it has a problem with failed Canister Purge Solenoid/Valve!































ADDED: If parts have to be ordered then that is not a common problem!
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Old 11 Nov 2011, 09:33 pm
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did u screw it tightly til the cap starts clicking















if u did do that the o ring on the gas cap may be bad and can be easily replaced (the whole cap) for really cheap
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