1995 Chevy Blazer sick and tired

1995 CHEVROLET BLAZER
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BLURR256
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1995 Chevy Blazer

ok here's the thing my blazer has been missing on a cylinder for a while now and i changed the plugs but the misfire comes and goes so i changed the wires cap and rotor but now it runs worse than it did before all of the wires are in the right spots but still cant figure it out
Apr 7, 2009 at 3:47 AM
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RASMATAZ
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Engine misfiring can be caused by worn or fouled spark plugs, a weak spark (weak coil, bad spark plug wire), loss of compression, vacuum leaks, anything that causes an unusually lean fuel mixture (lean misfire), an EGR valve that is stuck open, dirty fuel injectors, low fuel pressure, or even bad fuel
Apr 7, 2009 at 4:02 AM