Hello,

I've got a 2000 Silverado 2500hd LS 2wd with the 6.0 and this morning when I got in to go to work it wouldn't start. I just bought it a couple days ago and it's been running like a top until this morning. Dash lights, cab light and radio all light up as per usual. As soon as I crank the key to the on position everything shuts off to the sound of a single click. It then remains completely dead no matter what I do with the key. Tried jumping it and the battery is charged. I've managed to get the lights to come back on once but as soon as I turned the key it did the same thing. I couldn't find anything on Google with these symptoms so I figured I'd give it a shot here.

Help and thanks in advance!

 

I would say one of four things. Dirty/loose battery cable to battery terminal connections, bad battery, bad battery cables, or a bad starter.

Get your battery load tested (it could have a bad cell but still show 12+ VDC when a volt meter is attached to it or a charger is attached.

Inspect your battery to cable connections, make sure they are shiny clean and tightened to ~10 ft-lbs. Inspect your battery cables for integrity and green grunge (if any, replace affected cables).

Turn your headlights on and try to start the engine after knowing you have a good, fully charged battery and good battery cables. If the headlights dim just a bit, your starter is likely OK, and the engine should start. If the headlights really dim to the point they are almost not lighted, you have a bad starter.

Good Luck!

 

Thanks for the tips. After noodling around with it I discovered that it was just loose connecters on the battery. 🙃

I cleaned connectors, bolts and removed the positive side plastic boot. After tightening the connectors it fired right up and has been working fine since.

 

Happy to hear it was a simple and cheap fix!