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1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.

OHM Testing Coil Packs

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Old Aug 13, 2013 | 01:13 AM
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Question OHM Testing Coil Packs

Okay. I'm very confused by this. Today I tried to Ohm test my coil packs due to the fact that I have the 45mph shudder in overdrive. I replaced the original packs with BWD packs a few months back hoping to fix the multiple problems this truck had.

Well when I did the primary test, I was getting readings of 3 Ohms! Correct me if im wrong but shouldnt this read normally .3-1.0??? Then I tried secondary and literally got no readings at all.

Can anyone shed some light on this? Both packs are reading 3.0 and I cant get readings at all from the secondary on both of them. Am I doing something wrong here?

My multimeter is set in OHMs on 200.

Any help with this would be greatly appreciated.
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Old Aug 13, 2013 | 04:38 PM
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Okay I took one off and tested it today. I'm getting 2.5 on primary and 13.8 on secondary resistances. Am i right in assuming this is too much resistance? I'm going to pull the other one here in a bit. If it's the same similar readings should I just assume these BWD coil packs are garbage? Also could this be the cause of the 45 mph OD shudder?
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