Ok... I go away to Detroit for a trip, the blazer sits for 4 weeks... I get in, fire up drive into town, no brake lights. I have turn signals, emergency flashers, tail lamps, etc... but no brake lights. I replaced the brake light switch (at the pedal) still no lights. I have checked and there is power at the switch and it appears to be working appropriately but still no brake lights. No juice at the back end of the truck, I cant even tell that there is juice at the firewall... I HATE electrical issues. Thoughts anyone?