tonywannabe

Hello again. A few months later and I'm still having issues. Last couple of weeks it's been getting worse. Last 4 days have been bitterly cold, but this started earlier in the last year so I don't believe that's connected, just makes it even less fun to troubleshoot and diagnose without a heated garage! Today I stopped at a stop sign and for a split second, my whole dash "glitched". The message center said service stabilitrak for about one second and everything came back on. As I tried to gently accelerate from the stop sign (very icy!) the dash glitched out again and then was dead. No lights of any kind. Tried to set the flashers on to let others know I was dead in the water and there was nothing. Popped the hood and checked the battery distribution block where I've had loose connectors in the past, but they were all tight. However, one of the connectors was so hot that it singed my thumb print and made me remove my fingers fast. Everything seemed tight ( the block itself kind of loose as it "floats" just above the battery itself) and somehow, whatever I touched allowed power to flow freely again. The truck started right up and I drove it home. It again stated that I had to roll the window down and up to clear the code and the next 3 miles were without incident. To me, it now seems as though this is a loose or bad connection issue due to having no power, even to the hazard lights. However, the incredibly hot post on the distribution block makes me think there is a short. I have looked several times during the summer and a few times this winter, including today, and see or smell nothing of a short. The post that was high temp is by itself on the passenger side of the battery. I believe it says 175 amp. The wires are encased in the black mesh wire guard material and go down toward the fenderwell where they are attached by a plastic clip to keep them from moving. everything seems intact and not melted. I hate the idea of trying to trace these wires back to the dash or wherever they go cuz damn its cold out there right now, but I think thats my next course of action. Any thoughts out there about other (simpler?) things to check? Thanks to all- Tonywannabe

Good day to all. I have a 2018 Silverado LT with 70K miles. 3 days ago, I went out to my truck in the morning, jumped in, put the key in the ignition and noticed that none of the dash lights came on. I didn't realize I really had a problem until I tried to start the truck and nothing happened- not even the click that's associated with a dead battery. I pulled over my wife's Buick and put the cables on my truck and instantly, everything popped to life and was ready to start. I realized it was not a weak batter or alternator, partly because I just put in a new battery less than a year ago. I drove the truck the rest of the day without issue, shutting it off for a couple hours at a time each stop. Yesterday I tried to start the truck in the morning before driving to church and the same issue occurred. This time, I tried to wiggle the posts/connectors on the battery and they were solidly tightened. I tried to wiggle the key in the ignition, pulled it out and replaced it several times, and checked other various connections under the hood. While sitting in the drivers seat with the door open and searching my phone for videos related to this issue, my dash suddenly just came back to life. The message center showed the Chevrolet logo and the door dinger began to ding as I had left the key in the ignition. I started the truck right up and we drove to church. About 90 minutes after shutting off, we came out and found the condition returned. This time, I just sat in the truck with the key in the ignition and waited before deciding what to do. Within a minute, the mileage appeared by itself on the message center and I tried the key again, firing it right up. Each time, the message to roll down the drivers window and roll it up again appeared. Today I have started to the truck twice, waiting for about 10 seconds before trying to start it, and it has worked, but both times it said to roll down the window and up again. The last few days it has turned noticeably colder here in Wisconsin and the day before I first had the issue, I washed the truck before parking it, but I do often (5-7 washes a month). This weekend I will investigate more closely the wiring harness in the drivers door, but upon initial inspection, I have found nothing to report- everything looks clean, intact and in place properly.