quattroworld


D2 A8/S8 (1997 - 2003)
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I'd check the plugs and heads for gas after sitting a while
Posted by: JFrahm (4193) on 2018-01-29 19:02:32
In Reply to: 2003 S8 tiny stumble on first start after sitting for a few hours. posted by Ralph Wiggum on 2018-01-29 16:22:11

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My first thought would be a dripping injector. You can tape a Q tip to a coathanger wire and swab in the head via the plug hole for gas or coolant. Also check fuel pressure to see if it is dropping too much.

Techron additive also works pretty well if your injectors might be sticky and dripping.
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All messages | Search Forums | Return to D2 A8/S8 (1997 - 2003)