02 Sable 3L Cyl 1 Misfire

[SVOFANATIC]

I have a cyl one misfire on a 02 Sable 3L it doesn't do it at cruising speed nor does it do it when I'm above 4K rpms and on it. But between 2-4K rpms on a moderate to full throttle pedal position it breaks up. The 2.5 didn't have any misfires and I am running the same coil pack, plugs, and wires. Plugs and wires were replaced 8K miles ago I know you guys would suggest replacing them so I just bought another set of Motorcraft plugs for it. give me some ideas guys

[squeek]

Gonna sound crazy but you should check to assure it's snapped in. I know that is a crazy spot.

[SVOFANATIC]

checked and rechecked 3 times now.

[crewchiefpro]

Check vehicle wiring for cracks and insulation falling off. Make sure you have a good engine ground also.

If nothing else you should Ohm the spark plug wires, you can spray water on them and drive it to see if it is worse.

[SVOFANATIC]

Insulation problems? Yes lol but I went through and fixed what was cracking.

Engine ground: I have the main one that runs between the trans and the inner fender.

I'll ohm it in the morning lol.

[squeek]

I know you said you just did your wires, but you could try swapping wire one and three to see if it is the wire. Just tossing out ideas.

[SVOFANATIC]

7580 ohms for that wire.... Input shouldn't it be between 4k-8k a foot?

[mmc757]

Coil pack

[crewchiefpro]

I thought they were far lower than that. MSD says 40 - 1200 per foot. I will have to check mine to know for sure.

[SVOFANATIC]

It was the plug.... Went away now that the car has new plugs in it.....