Voltage surge killing half the electronics
I have been dealing with an issue for a couple months now. I had a couple things go wrong with may car all at the same time. My passenger side exhaust came loose from the header the same time my alternator grounded out and a couple of my coils went bad. After tightening things up and replacing the coils with Accel coils. Then replacing the 4 gauge wire that had grounded out, my nightmares had truly began. Once the Accels were installed, I was getting a terrible feedback from my speakers. My voltage meter on the cluster was shooting up just below the H then it would drop back to normal. The issue was bad enough it kills half the electronics in the car. Ford told me put the car back to stock. LOL, point of no return. Or take back the Accels and get MSD. So I did, and I'm still having the same problems. I replace the battery with the Optima 1000 cca, now the problem is bad enough that my amp for my stereo keeps going into protection mode. I sent my alternator back to PA Performance and my alternator is in perfect shape. Kevin at PA said he would go ahead and replace the voltage regulator in it but it tested fine. All my power and grounds have been upgraded to 4 gauge and have been triple checked. I have completely disconnected the stereo and the problem continues. This all started when my coils went out. Any Ideas? Kevin from PA was puzzled as well.