I have a '94 H1 and I don't know if there is a short somewhere or a hiden fuse or maybe the alternator is going bad... But my gauges constantly rise and drop and the volts drop even enough to cut off the radio. It's worse when I turn the lights on and I can't figure out why sometimes everything is perfectly fine. Any ideas on what's wrong?

 

Check the grounds My 98 has had grounding problems on everything

 

First time post.

I am having the exact same issue in my 97. If there is a grounding problem, where should I start?

 

Possibly. Where are you located.