99 Suburban Totally Dead

[kwied]

Got in my Sub today and it is totally dead. No interior lights, doesn't turn over... nothing. I put in a new battery 2 years ago, but I guess that could be the problem. It's never had a problem charging the battery in the past. We've all had the flu, so I haven't been able to get under the hood yet. If it's not the battery, then what? Any suggestions.

[J-Ri]

probably the battery or the connections... don't know what else it could be if nothing has power

[Aspenlogger]

I just fixed the exact same problem. 99 Suburbans are notorious for loose GROUND cable connections to battery and the block. Tighten em up and away you go!

[kwied]

Problem solved. It was the P.O.S. GM positive battery connectors. There are actually two connectors stacked one on another. It was a little loose and badly corroded. Once removed, I pulled the stacked connectors apart and peeled back the red insulating cover to expose the flat connector. A wire brush and some dielectric grease and they're as good as new. Put it back together and charged the battery. All is well again and it didn't cost me a dime. Thanks for your input... I should have known that was the problem. My wife's 2000 Pontiac Montana had that same issue about 1.5 years ago.