Coil pack help

[Tickle]

I'm chasing down a misfire at idle.

Can anyone check their oem coil pack resistances and post here? If like to compare numbers.

Thanks!

 

[Tickle]

Anyone?

 

[LDC2335]

I'm in the same boat. Which prongs are you testing? I haven't done this.

 

[Tickle]

Primary resistance is middle front prong and either prong on the side. I'm getting 1ohm.

Secondary is where I don't know, the Chilton manual has low numbers.

Measure secondary resistance by probing 2 cylinder outputs(where the plug wires connect to the coil). On the DS coil, measure 8/2 and 7/4. I was getting 14-14.5kOhms.

 

[Tickle]

I measured an off brand at auto zone and get 12.5k. I'm trying to decide whether or not to drop $130 on a new motorcraft set.

 

[mwolson]

This works for our coilpacks too: http://www.f150forum.com/f6/how-test-coil-pack-17249/