Question about Buick Rendezvous

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I have a 2002 buick rendzvous 3.4 thats keeps poping up with code p0300 radmon missfire i did a lower intake gasket replaced with a/c delco plugs new wires it runs but it acts like its misfiring it has on every clyinders i checked every vacumn line very carefully i havent changed crank sensor

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Could be low fuel pressure, a clogged fuel filter will give you a mild misfire sometimes. the alcohol in gas now makes moisture form inside your gas tank and rust if it's a steel tank but if not it will still make your fuel filter rust internally, always try the fuel filter first. could be a failing coil pack but usually you get a specific cyl. # misfire. could be a vacuum leak but but if the lower intake gasket was just replaced you should have noticed any loose vacuum lines.

Posted on Jan 02, 2011

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Posted on Jan 02, 2017

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MISSFIRE


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