clock resets after start

[Larsson]

My 2014 silverado has a problem with the clock and date when I start it. This problem happens sometimes. I start the truck and everything works normal but the clock and date are changed just like if you disconnect the battery. Is it possible that there's a bad ground somewhere? And if so, where is this bad ground located?

 

thanks.

[mikeyk101]

Its obviously having power loss like you suspect. And a bad ground would definitely be a good possibility. Since you have a 2014, the most likely culprit is the G218 ground issue. There are several youtube videos that show how to fix it. There is also a service bulletin that you should look at. You can download it here: https://static.nhtsa.gov/odi/tsbs/2017/MC-10113356-9999.pdf

[Larsson]

thanks mikeyk101 for your reply. the ground issue you brought up is a known problem and that's why I already corrected this problem. I read the service bulletin you sent me and I don't have any of the issues that are mentioned. so maybe it's a dodgy bcm? 

[DeePa]

Pull the RF fender liner and clean. The ground on the frame and above the starter. 

[Larsson]

thanks for the tip deepa. I'll check this groundwire too. 

 

any more tips?

[Larsson]

I cleaned all of the grounds I could find and I think it's fine now. 

 

Those ground wires are very sensitive. At first I took care of the G218 issue. Cleaned it and sprayed it with WD40 but that was a mistake. Before I didn't had any trouble with the powersteering and the stabilitrack system. But when I took it for a drive after the G218 modification it shut itself down while driving, gave a stabilitrack failure and the powersteering died. Today I cleaned it with brakecleaner and sandpaper and so far it's doing ok. 

 

So don't use any kind of spray or oil. just clean it and put it back together. Those ground connections are very sensitive.

[DeePa]

Replace the neg cable when you can.  Cleaning the ground got me through a few months but it started to act up again. No issues since. 
 

 

[Larsson]

Your right on that one DeePa. When I bought the truck 14 months ago I did clean the ground that goes from the negative battery terminal to the chassis. I'm talking about the small wire that is connected near the right front wheel. When I looked at it last week it was a bit rusty again. I think the winter weather had something to do with it.

 

But for now lets keep my fingers crossed.

 

10 years ago chevrolet was the truck to own here in holland but today Ram took over that spot. There are only a few fords to be seen and fewer chevy's. The reason is that the quality of the electronic parts has gone down a lot dealers say. What do you guys have to say about that? Is the quality of gm trucks getting worse by the years?

[DeePa]

Quality has dropped I’m sure but complexity is so much higher than it used to be, so it depends on how you look at it. 
 

the more a truck has, the more that can go wrong 

[Mbest]

Just had the engine replaced in my 2018 Silverado 4X4 after 236,000 miles. Starting problem started almost immediately with clicking noise noise similar to a dead battery. One new battery and 2 new starters later, still having same problem. Clock also resets every time. Planning to change battery cables next and then move to checking grounds.