Great Lakes 4x4. The largest offroad forum in the Midwest - View Single Post - hydro boost vacuum??
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Old February 9th, 2010, 03:57 PM   #11
Yeeeee Haaaaw!
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Something else is missing here...... Maybe an intake manifold leak or something...... Not having a vaccum leak should make it run more rich, but not that rich.... maybe a combination of that and a timing advance to make up for it???? I'm scratching my head here. Any check engine light on? The dealership should at the very least be able to hook up their OBD2 scanner and see what specifically it's affecting besides fuel mixture and idle.....
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