1984 k5 blazer
chevy 350

hey guys, my truck ran dead last night for no apparent reason. i charged the battery and had the alternator and battery checked, and everything checked out. then i went over a bump, and my electrical guage, that shows battery charge just went dead, showing no charge. Now at night, when i turn on my headlights, i get this beeeeeeeeeeeeeeeeeeeeeeeeeeeeeep sound that doesnt turn off.

Any idea whats going on? could it be some sensor or something?

 

Had the same issue.. I just threw out the buzzer.

Something is probably grounding out

 

Sounds like you have some loose wiring under the dash. The fact that going over a bump caused a gauge to stop working is evidence to that.