misfiring on #4 and #6 cylinders!!
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misfiring on #4 and #6 cylinders!!
by Krovian » Fri May 21, 2010 6:26 am
I am getting spark to the plug but no combustion!! could it be valve sticking or broken, a lifter broken, a bent or broken push rod, or a loose, broken, or mis-aligned rocker; or all of the above. <sigh>
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Re: misfiring on #4 and #6 cylinders!!
by jwvess00 » Fri May 28, 2010 8:33 am
Hi there!
Has there been recent work done to it? Have the valve covers been off?
I'm thinking vacuum leak (i.e. intake gaskets, or a vacuum port that primarily draws from 4 and 6) is a likely cause. Beyond that it could be valvetrain related.
Has there been recent work done to it? Have the valve covers been off?
I'm thinking vacuum leak (i.e. intake gaskets, or a vacuum port that primarily draws from 4 and 6) is a likely cause. Beyond that it could be valvetrain related.
Jay Vessels
1982 Chevrolet S-10 Sport, 2.8V6 TBI
2006 Pontiac Solstice
1982 Chevrolet S-10 Sport, 2.8V6 TBI
2006 Pontiac Solstice
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jwvess00 - Tech Editor
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Re: misfiring on #4 and #6 cylinders!!
by betterthanyou » Sun Jun 20, 2010 1:48 pm
Do you feel it bucking or anything when driving. Have you changed the plugs or other ignition components?
1993 EXT. CAB, 3.4L V6 TBI, 5spd manual
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Because... I am, CANADIAN
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