Question about 1999 Chevrolet Blazer

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HOW I FIX CYLINDER 5 MISFIRE IN 96 CHEVY BLAZER,I GET NEW CABLES AND SPARKPLUS AND I CLEAR THE CODE PO305 BUT STILL COMING BACK

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A bad injector, piston ring blowby or a head gasket/coolant problem can also cause a cylinder to misfire.

Compare the color of that plug to one from another cylinder. If it is wet and gassy you have too much gas or not enough spark. If it is black and oily you have a piston ring problem. If it is sweet smelling, watery wet or white foamy you have a head or head gasket problem, if it is white then you have a too lean condition (plugged or faulty fuel injector).

Posted on Jan 01, 2011

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Posted on Jan 02, 2017

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I HAVE A 2006 BMW Z4 3.0I ROUGH IDLE.. SET CODE # PO305 # 5 MISFIRE..SO I REPLACED THE COIL AND PLUG WITH A NEW SET. STILL ROUGH IDLE BUT NOW WHEN STOPPED AT A RED LIGHT WILL DIE.. CODE GONE NOW BUT??


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