Help-2024 Tahoe Stalled

[Bkihum]

Hi all,

I purchased my first ever GM product and got a 2024 Chevy Tahoe LT (5.3L) in January. It has 12,000 miles on it and has been a good ride until today when I was driving down the road and the car began to stutter and then the engine just died. The radio and infotainment system still worked, but when I tried to start the vehicle it would grind but not start. I had the vehicle towed to the nearby dealer tonight and will have to call them in the morning.

Has anyone ever heard of this happening with a brand new Tahoe?

I had the same issue and it was the fuel pump module in the rear.... Second time it quit it was the dreaded catastrophe engine failure Towed to dealer and waiting for engine to be changed... 26000 miles

 

[NT1978]

there have been a number of reports of the fuel pump control module failing, no set mileage it's random

Thanks all for the feedback. The dealer is diagnosing it now and I just want to have an idea of what the problem might be.

 

[NT1978]

I had the same issue and it was the fuel pump module in the rear.... Second time it quit it was the dreaded catastrophe engine failure Towed to dealer and waiting for engine to be changed... 26000 miles

So you had the car stall 2 different times with one being the fuel pump module and the second time it was an engine failure? What engine did you have...5.3 or 6.2?

 

[NT1978]

I got a call from the dealer, and while they are not done with the diagnosis, they said they found metal in the oil and believe it's an engine issue. I have only ever had Hondas and Toyotas and am frankly in shock that a brand new engine would already need to be replaced. Has anyone had their 5.3 engine replace within the first year? If so, did the replacement engine work fine for several years?

 

[KMeloney]

This will be a bit unusual if your 5.3 seized the way some 6.2s have.

...But most other failures I've read about here have been accompanied by a message on the screen about the truck being unable to shift, and folks have had to coast in neutral to the side of the road. Did you have this occur, too?

 

[Sean Michael]

Well I was driving at 50 mph when it started making a strange noise almost like the tire had popped. The car eventually came to a stop and when I tried to restart the car it was making a sound like a car trying to turn over to start but it would not. Maybe that is called a cranking sound. It did not sound like metal to metal.

Is it common for a fuel pump to go out so soon? How many miles do you have on your vehicle now?

Unfortunately, FPCM failure seems to be relatively common. As mentioned, mine went out at 320 miles, I hadn't even owned the vehicle for a week at the time, so it was new-new. Must have been a defective part from the supplier to go out that early. That was in September, I got it back a day or so later and now have 2,500 miles with no further issues as of yet.

I saw your other reply about the dealership finding metal in your oil, so it seems you might have a more serious issue. Metal in the oil basically always results in needing a new engine. Please keep us updated, it's good to share the experiences we have with these vehicles. I feel for you though, having a new vehicle engine brick itself is an awful experience, it's highly inconvenient, and erodes trust in the vehicle even after repair. Being it's so new, warranty should handle the repair and you'll get it back in working order, but it still takes a toll on time, convenience, and trust.

Regarding your question about 5.3L failures under a year, besides a period of time around 2021 when GM received a bad supply of lifters, having a 5.3L fail within the first year is unusual. I'm on my third Tahoe, and my prior two both had the 5.3L. My 2008 went 11 years and 160K trouble-free miles, my 2019 went 5 years and was at 50K trouble-free miles when I traded it in, it was running perfect at trade-in, I just wanted a new gen with the 6.2L. My experience with those two 5.3L engines was excellent, they never let me down and a reason I'm a fan of these vehicles. I'm hoping my current 6.2L will serve me reliably, besides that little hiccup at 320 miles with the FPCM.