2007 Chevy Avalanche V8 Two Wheel Drive Automatic 64,000 miles
I parked my truck, and later tried to restart the engine, there is nothing, no noise, no gauges, no door locks, no interiors, but the headlights and the radio work fine. Have changed the battery still not working. The gear shift is freely moveable.
In your underhood electrical center there is a starter relay and a fuse which is 40 amp. They should be clearly marked on the inside of the cover. Check thosee to see if one of those are bad first. You could also have a bad starter. It cold be another problem like a neutral safety switch or bad ignition switch. But usually it's either a relay or something similar. If it's not one of those then take it to a pro they will figure it out and will cost you less money.