If the wires aren't the problem then consider this:

The 4.6 dohc has two ignition coil packs, one for each bank of
cylinders, right? It is possible that the one that feeds cyl. #4 is
malfunctioning. Possibly a crack allowing moisture in. Is the stutter
worse when it is cold and damp outside and the engine is cold?

Mario

--
EngineOilSelector.com

dave wrote:
> 4.6 dohc 32v 57,000miles
> new plugs,new air filter, new oil filter, new fuel filter
> obd2 say miss in cylinder 4.
> OBD2 says everything else in spec.
> Have not replaced wires but I checked them and they are in spec. Wire 4
> reads ~12000ohms.
> Anybody ever check there wires to see what the resistance is?
> Don't want to spend $130.00 on wires if they are OK.
> I may have a bad exhaust valve too don't know yet.
> I do excellent maintenence on the engine but I do drive it hard.
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