2000 Ford F150 Harley 5.4

I have a rough running engine. Code says cylinder 3 is misfiring (had to deal with these coil packs a lot).

I pulled coil packs 1 2 and 3 and tested the ohms reading on them. This is what I came up with (knowing 2 of these were ok) but I am not sure what the tolerances are....

Primary/Secondary ohms reading

Cylinder 1 (1.0 / 6.22)

Cylinder 2 (1.0 / 6.01)

Cylinder 3 (1.0 / 5.91)

Are these withing the threshold? I cannot seem to find a solid answer. Cylinder 3 is in question here.

 

how are your plugs?

how do the COPs look?

 

Plugs are good. Just replaced them about 10k ago.

COP's all look fine. Upon removal, the cylinders were clean, boots looked fine.

 

did you remove the boot and check for any abnormalities?

 

yes, everything looks fine. I mainly just wondering if those readings look ok. I've also heard that these readings really only show you total failure and are not a good way of seeing if the pack is bad.

 

Are the coil packs motorcraft?

 

According to a Haynes book 6.5-11.5 k-ohms is the normal range.