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misfire. and o2 sensor malfunction

   
Old Mar 18, 2011 | 07:08 AM
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2009camaro's Avatar
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Default misfire. and o2 sensor malfunction
have a 97 f150 ist showing num 5 misfire and o2 sensors malfunction.. i have checked plugs, replaced coilpack, o2 sensors, egr valve, checked for vacum leacks, still no better.. need input
 
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Old Mar 18, 2011 | 08:56 AM
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It might be time to do a compression check.
 
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Old Mar 22, 2011 | 08:42 PM
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done the compression check all were around 180... now WUT???
 
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