Can you test a Coil Pack (COP) with an ohm meter?
#1
Can you test a Coil Pack (COP) with an ohm meter?
Before I blow a lot of money on new coils to try to cure my misfire on 5 which is no longer giving codes, but still missing, I thought perhaps I should actually see if they are in bad shape first. Can you perform a diagnostic test on the cop with a multimeter? Such as testing the resistance across the primary and secondary circuits? what should the readings be if so?? thanks!
#4
#5
My multimeter auto ranges. When I touch the primary terminals (the ones on the inside) I get a resistance of 0.500 ohms. When I touch the secondary terminals I get 5,520 ohms.
#6
I guess since I'm using a 20 year old multi meter I may be at a disadvantage. but I'll see if I can get readings similar to the ones you've listed. those are about the same as some specs I saw for an older Ford coil pack, so I guess nothing changes much. thanks for the input!!
#7
I guess my biggest question is are you supposed to unhook one, crank the motor take the reading then proceed to do the same all the way around the motor?
Another question, how can you know what exact cylinder is misfiring?
I am having issues with bucking on acceleration in lower rpm's that i feel might be related to some emissions type issue. But i would like to rule out COP.
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