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08 Enclave. For the past few months, we have intermittently noticed a gas smell while sitting at a stop light. Changing AC to recirculate 'fixes' it. It's not super strong - I don't really notice - but it's stong enough for my wife to go Ugh, and change to recirc. It happens a few times a week, but otherwise we don't really notice a pattern. It doesn't seem to be any more likely after a fill-up, though passengers in the 3rd row have mentioned a couple times that they smell gas right after a fill-up. Only other gremlin is that maybe 5 or 6 times in the last few months it's taken longer to crank - like 4 or 5 or 6 seconds of turning over before it fires up - but we haven't noticed any correlation between that and the gas smell or fill-ups (and have never had that cranking problem right after a fill-up). So these may well be three unrelated problems. Any ideas on the gas smell at idle? Next step on trouble shooting? Thanks.
 
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