flashing around spark plug boot
 

hey guys, I just installed a new msd hvc 2 coil on my car because of another coil arcing. The car runs fine. just for fun , though , we shut all the lights off in the garage to check the rest of the ignition wires.We did see flashing , not arcing , at the spark plug boots. i did put dielectric grease on the terminals. I have seen this before but just wondering what it is and if it is normal?It's got an msd 7al2 and both heads are grounded.Thanks.

IMO if it is flashing around a boot then i would think the boots bad if it is secured on sparkplug properly

IMHO It's time for a new set of plug wires :shock:

I agree You need new wires!!!!!!!!! You should see Nothing if you shout the lights off...You are producing a ton of resistance that will cause the ignition
to fail sooner or later!!!!!!!!Good luck :D

Sorry , I forgot to mention i have new msd 8.5 wires.Maybe that's why my coils keep going bad?

Moroso ultra 40's if you get another set .. I'd be calling MSD and asking why its doing it. I agree with all the above needs new plug wires .

Make sure you don't have too much resistance somewhere else. Cap and rotor, and rotor phasing need to be good. Also tighten up the plug gap, .030 should be good. When going to the Digital 7 and HVC II in my new car I fried the center conductor on my HEI distributor, I had to get a low resistance one that MSD sells.

Call MSD!!!!!!!!!!!!!! David.

Thanks for the replies. Did anybody else check their cars for this?

I've had my cars running several times in the dark ... this isnt something that is suppose to happen.