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Old 10-17-2018, 09:52 AM
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babywag babywag is offline
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Join Date: Jun 08, 2005
Location: Land of froot loops and cukcoo-nuts, CA
Posts: 9,249
Did you have the rotating assembly balanced when engine was rebuilt?

A misfire can also cause vibration or bad motor mount.
Could be other things as well.
'88 GW (aka Babywag) and '90 GW (aka JUNKbucket) both fuel injected
1994 Caprice wagon
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