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Subject: 96 gmc yukon


Author:
dean strey
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Date Posted: 16:45:03 09/16/03 Tue

the 96 yukon has a severe misfire problem. i replaced the cap,rotor,plugs,wires and pcv valve. it still misfires and sets code 300b(misfire detected)? the truck looks like it has been taken over my mice so an electrical problem like a chewed wire may be a possibility. recently replaced the fuel pump and fuel filter. it ran fine at that time, but has been sitting for 2 months and now has a check engine light and a misfire. any body have any ideas??

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