coil?

rod · 01-08-2022, 05:29 PM

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

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

This might help

MSD ignition coil test repair

01-08-2022, 05:29 PM	#1
rod Member Join Date: Dec 2009 Location: Kingman, NW AZ. in the middle of the longest stretch of Route 66 Posts: 315 Likes: 0 Liked 20 Times in 15 Posts	coil? I have a MSD Blaster 3 coil. how can you test a coil out of the car? thanks Rod in AZ

01-09-2022, 01:25 AM	#2
Dave Noll Senior Member Join Date: Nov 2007 Location: Div. 6, Eastern, WA Posts: 710 Likes: 2,671 Liked 240 Times in 112 Posts	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. __________________ Dave Noll, EF/S ,?/SA 6526

01-09-2022, 06:24 PM	#3
Chevy55 Banned Join Date: Nov 2014 Posts: 324 Likes: 625 Liked 179 Times in 89 Posts	Re: coil? This might help MSD ignition coil test repair