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rod	01-08-2022 05:29 PM

coil?

I have a MSD Blaster 3 coil. how can you test a coil out of the car?
thanks Rod in AZ

Dave Noll

01-09-2022 01:25 AM

Re: coil?

Out of the car, 2 ways. Check the coil tower for carbon tracking or cracks & check the primary and secondary circuits for resistance with a DVOM.

A 3rd way is on the car. Hook up an ignition oscilloscope to the ignition system on the car, pull 1 plug wire, start the car and see how high the spike on the disconnected cylinder goes on the scope screen.

Chevy55

01-09-2022 06:24 PM

Re: coil?

This might help

MSD ignition coil test repair
https://youtu.be/pViBrOo3kPw

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