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Old 05-16-1999, 10:38 PM
Benzmac
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If it is pressure you're OK, if it is vacuum, you have a check valve or purge line clogged up. To see if it is vacuum or pressure, push down on the cap and turn it like you are going to take it off. Then let go. Be sure to stand asside because if it is pressure it could blow some fuel out. IF it is vacuum the cap will stay put until you pull it off.

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