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| | | | Joined: Oct 2001 Posts: 130 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2001 Posts: 130 | since the 5and 6 cylinders are fed by the same intake runner, maybe there is a vacuum leak at the intake manifold gasket at the head, causing the 5 and 6 to run lean.hope this helps. good luck.
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