I have a 91 Ford Explorer. I am having problems with the solenoid switch. It wouldnt start so I replaced it. The guy at the part shop said I may need a voltage regulator if it didnt fix the problem. I then drove for a week with no problems. Then it didnt start again. I jumped it,drove up the road and the brakes made a few semi-loud popping sounds and stopped working. I had rear brakes but the fronts only made a grinding sound. I checked the brakes and there were no visible problems. I need to know if there is a way the electrical problem could be affecting my brakes, and if so how can I fix it. Thanks in advance for any help you could give.