misfire. and o2 sensor malfunction

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Mar 18, 2011 | 07:08 AM

2009camaro

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Joined: Mar 2011

Posts: 2

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

Mar 18, 2011 | 08:56 AM

hanky

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Joined: Jun 2010

Posts: 16,587

It might be time to do a compression check.

Mar 22, 2011 | 08:42 PM

2009camaro

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done the compression check all were around 180... now WUT???

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