Originally Posted by chevyracer8262
I just put another 305 into my truck and had an issue that left me stranded on the side of the interstate yesterday and I'm wandering if anyone's had this type problem before or have any ideas to what could have caused it. Here's what I have It's an 88 GMC 2500 light duty. I replaced the worn out the 305 with a low milage well maintained 87 Montie Carlo SS 305 while I was at it I installed a set of headers, electric fan, 14"x4" open element air filter, MSD coil and Accel ignition module. Yesterday both the ignition module and coil went out on me does anyone have any idea what could have caused that to happen?
One thing that comes to mind from personal experience. A bad connection in the wiring to the battery which allowed an alternator spike?
Maybe not, but it wouldn't hurt to double check everything to verify continuity. Especially the grounds!
Of course sometimes when that happens, it fries the computer and radio. I've been there!
Did you put the old coil and module back in and are they working? Possible defective new module?
Did you take it to the parts store for testing?