Chevrolet Bolt EV & EUV 2022 Official Thread

i took the pip up to the mechanic today and we went for a test drive. he could feel it shuddering under light acceleration, and thought it was in the drive train. i tried to tell him it would do it in electric if it wasn't the engine, but he is scared of hybrids, and just doesn't want to dig deep into the throttle body and egr unfortunately.
i'm getting closer and closer to a model 3, nothing else available out there for 33k or less

 

Interesting. I wonder if they had had the software update done that's supposed to prevent the fires. Since the fires seemed to only happen on cars that were run very low on charge and then charged to 100%, the software, among other things, limits the charge to 80% and it also looks for anomalies that might indicate a defective cell. I noticed that there was no mention of the battery's SOC when it caught fire.

(I'm not blaming SOC solely for the fires, just pointing out that charging to 100% with the defective battery seems to be the fatal combination.)

 

What can 'Fuel System Cleaner' clean except the injector itself and maybe the intake valves a bit? If you're lucky and you don't buy the cheapest kind.

I don' think they make any other claims.

 

i want to try the 'disconnect the egr wire harness plug' method someone advocated in another thread, but when i asked him about how it worked, he disappeared.

 

Just driving hard might clear things up. A Seafoam treatment will do more, but is more involved.

Anything that leads to an engine code can lead to 'limp home' mode. The car running that way won't make diagnosis easier.

 

that's what i thought, but a few people claim that if the knocking stops, it's the egr.

i have tried driving it hard, that seemed to have made it worse. fuel system cleaner might be worth a shot, idk.
it's fine under hard acceleration and driving on the highway. only does it on back roads when feathering between ev and hv.

 

Tuesday I was helping get an inventory car ready; a Gen2 bought from auction. It was rattling quite loudly at idle and throwing codes for random misfires, but increase the engine speed and the knock would go away, replaced with a surge. It was a perfectly regular RPM fluctuation.

Our theory was that, since it was all cylinders, it was unlikely to be the injectors. The plan was to check the fuel pump the next morning, but I wasn't there to see how it turned out. (We considered fuel contamination, but the surge was too regular for that.)

 

Took advantage of Fed. $4k used EV tax credit. Traded quick fun 2014 i3 for more practical long range 2022 Bolt.

Image by ammdb posted Jan 17, 2024 at 10:37 PM

 

congrats, all the best!
see you over at bolt.org

 

@ammdb, I'm pretty sure he meant chevybolt.org.

 

Maybe somewhere deep in my addled mind