I have a brand new 2023 Tahoe with 2400 miles on it. Currently at dealership but not sure if they can reproduce issue. Here is what’s going on, I have found if you drive it, park it for about 15 minutes and get back in to drive again, the car comes up and says service engine and transmission, traction control unavailable and forward collision unavailable please service, check engine light comes on and it will flash if you drive it and get no power out of Tahoe, engine is running really rough feels like it’s going to blow up and I got the codes from OnStar code P0204 and P0300. If you shut off the vehicle after this happens and leave it for a couple of hours and go to drive it drives like brand new again, but if you shut off and leave for about 15 minutes and go to drive again same thing and same process to reset/fix. Has anyone seen anything like this? 2023 Chevy Tahoe LT, 5.3 with 4WD
2023 Chevy Tahoe problems need help asap!
- Thread starter snake99_4
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WalleyeMikeIII
Full Access Member
So that is an engine misfire and an Injector Circuit code...likely bad injector, bad wiring harness, bad connection...my vote would be bad injector or bad connection, given it seems to be thermally related (runs OK cold/cool). If it is throwing codes, dealer will figure it out. Thats what warranty is for.
Report back what they say, curious to know.
Report back what they say, curious to know.
So the thing is, I can drive it for a long time and not have a single problem, engine up to temp, etc, but if I shut it off and let sit for 15 minutes and get back in, then it starts misfiring and throwing those codes. Cut it off again and let sit for a few hours and run it, everything runs perfect but again cut off wait 15 minutes get back in and again misfiring again
WalleyeMikeIII
Full Access Member
Dealer will get it figured out...its a machine...stuff happens...its the stuff that happens after stuff happens that matters....
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Welcome to the Forum from NH.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving sage advice from the knowledgeable folks on this Forum.
Lots of knowledgeable folks here who freely share their knowledge, experiences, and perspectives. Knowledge is power.
I hope that you will become a participating member in the Forum's discussions.
Pics of the truck, please.
You are already receiving sage advice from the knowledgeable folks on this Forum.
Update to the problem. Bad fuel injector number 4 cylinder. Dealership said not to drive. Fuel injector under a extended back order with no ETA, could be weeks or months before get fuel injector not sure, but to anyone who has similar problem might be same issue I got
So be careful, it took 3 weeks to get vehicle back and said they replaced the injectors on bank 2. Drove it this weekend and same problem again now it’s an injector on bank 1. Hopefully can do the same thing to that side too. Bringing in today. If they are going to replace one need to replace all cause they are all from same bad batch and GM needs to issue a recall
Linkster63
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So I just took our 2023 Tahoe to the dealership same issue….bad injector!!
Hope they get it back to you sooner than later. Took about 3 weeks to get mine back, those parts on extended back order and if you call around to see who has parts, some places that I called had the injectors but they weren’t selling cause so hard to get. GM should do a recall on these things and I am not sure why they aren’t doing it
Linkster63
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I was told 2-3 days hopefully to get the injector in, then 2-3 days after that….
2023 Tahoe zr1. Bad injector, great dealer I purchased Tahoe from said it could take a day, a week, or a month to get. Very reassuring! Called GM and have a ticket started and not heard anything yet. Going to attempt a buy back as I really do not trust this truck the more I read! No more GM for this guy!
Really disappointed. 5.3L which has been produced forever and in 2023 gm decides to change the electrical connector on this new injector? Keep it simple GM - please.
Less than 3000miles on my YukonXL and I can’t trust it on long trips with my family on board. 2 month wait - They can’t even provide a proper loaner vehicle. Sorry to say GM is going to loose us on this one.
Less than 3000miles on my YukonXL and I can’t trust it on long trips with my family on board. 2 month wait - They can’t even provide a proper loaner vehicle. Sorry to say GM is going to loose us on this one.
I have a new 2023 Tahoe Premier with 3300 miles on it. It is currently at dealership. Yesterday, we drove it to the store. Parked it for 15-20 minutes. Came out and started it. Lights all over the dash went on saying service engine and transmission, traction control unavailable and forward collision unavailable please service. Check engine light came on. We drove it home a half mile. Lights kept flashing. The engine was running really rough. Got on the Chevy app and made an appointment for this morning. Obviously, this morning, the car is running like a champ but the check engine light is still on. Already received the call that it is the injector. The part is backordered and no estimated date of delivery. The dealer offered us a loaner which we have to take. Also, we paid to extend the warranty to the 3 year mark since they only offer 1 year now. I think that they should give me the time back for the estimated month that I can't drive the car. Super disappointed that this is happening on a brand new car.
We did finally get ours back. They replaced 2 injectors but it took about 6 weeks total and we didn’t get a loaner, and keep this in mind we tried to get loaner from dealership we got it from and the dealership changed owners so they said there is nothing they can do from past sales. Luckily the dealership we went to to get fixed was able to escalate it and get the parts sooner than later and so far it has been ok
Post in thread '2023 Tahoe - Bad Injectors - 4900 Miles' https://www.tahoeyukonforum.com/threads/2023-tahoe-bad-injectors-4900-miles.140875/post-1772355
Cahern9885
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2023 Yukon less than 5000 miles same issues. Dealer has been great and given me a loaner but going on week 3 with no timeline for a new injector. Definitely a known problem. GM is lying and I don’t trust this vehicle. This is my 5th Yukon and a huge disappointment. The dealers are frustrated the customer is frustrated and I’m thinking of pulling the lemon law and going to a Ford.
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I’m having similar issues with my 2023 Tahoe High Country… 4400 miles now. the only thing mine is doing however is check engine light flashes for a few miles and then quits. This is the second time it’s happened, both times it’s gone to the dealership… first time they told me it was bad gas, and to continue driving it. Second time, I just got it back and they supposedly reset some codes and want me to continue to drive it. I’m furious and do not trust it at all after reading all these posts.
I’m having these issues with my 2023 Tahoe High Country… 4400 miles now. the only thing mine is doing however is check engine light flashes for a few miles and then quits. This is the second time it’s happened, both times it’s gone to the dealership… first time they told me it was bad gas, and to continue driving it. Second time, I just got it back and they supposedly reset some codes and want me to continue to drive it. I’m furious and do not trust it at all after reading all these posts. I’m with you on lemon law! Or GM needs to do a massive recall on them and fix their issue!!! This is my first GM product and I’m not impressed at all!
