1998 Ford Escort Rough idle

1998 FORD ESCORT
211,000 MILES • 4 CYL • FWD • AUTOMATIC
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P_NEILAND
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After I have filled up the tank, the car runs fine until the gas gauge gets between the 1/2 and 3/4 marks and then it runs rough. Doesn't stall but has lower performance. I found that when I fill up it's fine so last night I opened the gas tank cover for a minute and now it runs fine.
Any ideas so I know what I'm looking at.
Thanks
Pete
Apr 18, 2009 at 1:34 PM
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