1998 Chevy Blazer repairing according to diagonistic code P

1998 CHEVROLET BLAZER
104,000 MILES • 6 CYL • 2WD • AUTOMATIC
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JAMESMAN1
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i know that the code PO304 refers to misfire in cly.4 but how do i fix it.
Aug 19, 2009 at 6:45 PM
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RASMATAZ
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Should lead you to check the sparkplug, compression and injector for cyl. no. 4
Aug 19, 2009 at 9:05 PM