"davenz" <none RemoveThis @000.com> wrote in message
news:1205633_3f30d5108dda7c4043b29ff865add25c@autoboardz.com...
> 1991 gt wagon is surging when it is idling can anybody help
>
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Remove the egr valve and clean out the carbon deposits with carb cleaner.
You'll have to push up on the diaphragm to open the pintle to get it all
cleaned out.