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96 blazer 4.3 v6

Old Jun 23, 2011 | 01:07 AM
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Exclamation 96 blazer 4.3 v6

engins ildal rough sounds like miss fireing runs somewhat ok on hwy replaced all 4 o2 sencers whith no change has new ac plugs with no change. can smell fuel at tailpipe
 
Old Jun 23, 2011 | 01:15 AM
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What brand of plugs did you use when you replaced them?
 
Old Jun 23, 2011 | 01:39 AM
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replaced with ac delco plugs,allso used bosh o2 sencers but still runs the same. not sure if fuel or spark is problem
 
Old Jun 23, 2011 | 10:44 AM
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Originally Posted by bigbear33881
replaced with ac delco plugs,allso used bosh o2 sencers but still runs the same. not sure if fuel or spark is problem
i say get your fuel pressure tested before you change any thing else
 


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