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Joined: Fri Nov 10th, 2017
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I'm wondering if these engines can even have an ignition based misfire since it has the dual spark setup. Even with one coil going bad the other one should take up the slack. One spark or wire goes bad the other side should keep it going.I know that when I had duel fire ignition on my 96 Harley it was always stumbling at idle. When I changed the ignition to single fire the bike smoothed out and ran much better.
I probably should have swapped injectors when I took the top intake plenum off for the spark plugs.
I guess next step is to mess with PCV valve. Also, need to do an IAC unplug test.
I am on ignition number four. The replacement of #2 was because it was a cheap chinese knockoff that lasted just under 6 months. I do know the single fire causes premature spark plug failure and my truck has never had a very smooth idle.
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Tony
NE ATL
'04 XLT regular cab 3.slo stepside
Semi retirement