Ok... (deep breath). Here we go. 2000 monte ss 3800 v6 when it starts it runs like a raped ape. However the is it doesn't always run. I've checked fuses, relays and circuit breakers. Looked at every fusible link I could find and came up empty. I can walk out one time put the key in the ignition turn it and she fires right up. Other times I walk out and the key is dead. And I do mean dead as in nothing. No sound no beep no chirp no slow crank it is just dead like no power.
Anybody got any ideas on where I might find this damn gremlin? Any ideas would be great as this is my daily and I'm out of ideas.

 

Figured out the issue was human error after all. Loose battery cable 🙄

 

Easy fix!