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International Automotive Technicians Network
99 Buick, code P0300 that won' go away
Posted to Shop Management Forum on 7/1/2003 5 Replies

Hi guys:

One of our techs has a 99 Buick Century Limited 3100 [M] came in about 600 miles ago with code P0300 . cyl # 4 had the most misfires inspection indicated fairly worn spark plugs and a severely corroded terminal on #4 coil pak. Replaced spark plugs, ... Login to read more.

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