aytag86

Hi All, The last time I posted here was on Sept 6th 2024. It was about the vibrations issues on my 2023 1500 denali. Long story short, the dealership i bought it from never even acknowledged that there is a problem and said that the vibration is normal for these engines. Summary, - Sept 2023 - Bought the truck from - Oct 2023 - Approached the dealership- about the vibration issue among several others such as the screeching noise while rolling up the windows, passenger small upper gove box not opening etc. -Then I kept going back to the dealership about the vibration issue over several months- they said its not bringing up an alarm code and so they cannot find the problem and that its normal for this engine. -Oct 2024 - I gave up on the dealership and ended up taking it up with Chevy delearship. -Oct 2024 - Valve body was replaced - drove it for few weeks - truck still vibrates. Booked another service appointment. -Early Nov 2024 - Torque converter was replaced. - drove it for few weeks - truck still vibrates. Booked another service appointment. - Late Nov 2024 - whole Transmission was replaced - drove it for few weeks - still vibrates and worse that it vibrates even in park mode. Informed Chevy techs. -Dec 2024- GM tech informs Chevy tech - that vibration for my truck is normal because it has DYNAMIC FUEL MANAGEMENT (RPO CODE L84). After all that work done on my truck and a year later, they came to the same conclusion as the first dealership did. Where does this leave me as the consumer/ end user.

Hi Bikerjon, yes I do. its a 5.3 V8.

I bought this super expensive 2023 1500 sierra and i'm having this high frequency vibrations at low speeds. only for me i experience it between 50 - 100 kph. I have taken it back to the dealership 4 times and the following is what they told me. - that its normal - AFM / DFM in the engine is whats causing it. (how can it be normal, when there so many of us here complaining about the same thing) -that its not producing a code to troubleshoot the problem. -they cannot find anyting wrong with it. i am a first time GMC sierra 1500 owner. Got the vehicle in 2023. was looking forward to it for a long time. this vibration experience on the vehicle with no resolution in site shattered my respect for GMC. All the response from GMC i see here is "Sorry this happened. Give us your VIN # and dealership and we ll investigate further" one year later and they have not come up with a solution. this is humiliating and a disgrace. now i am stuck with this expensive uncomfortable hunk of metal.