Starting issue
 

I'm new here. I'm having starting issues with my 07 Silverado. Sometimes when I go to start the truck it make a click noise and acts like there is no power to start. When power does come back the time on the radio is reset back to 12:00 PM. Sometimes I have open the hood and wiggled the positive cable and the power will come back on. Sometimes that doesn't work though. I have changed the battery and alternator. Sometimes when driving the door lock will lock and unlock multiple times at the same time my gauges wil drop to 0 then back to normal. Any one can help?

Sounds like a faulty ground.

I would suggest removing the battery cables, cleaning every single connection, and cleaning off the ground cable completely and possibly replacing the bolt.

Corrosion will destroy your wiring

Thanks Kevin. I will try that.