2023 Toyota Tundra: misfire or rough idle

Filed Sep 27, 2025 · Engine · TX

The engine misfired and failed twice in one year, and the vehicle is currently available for inspection. Both times the engine failed, I was on the freeway, which nearly caused cars and semi-trucks to rear-end me. I had a convoy of vehicles behind me and had to move to the right lane very cautiously. I reported the problem to the AutoNation Toyota dealership on Gulf Freeway. Yes, the dealership mechanics have inspected it, and it has been at the dealership since August 5, 2025. There were warning lights on the dashboard when the engine failed.

Filed Jun 30, 2025 · Brakes, Fuel system · MD

Engine is misfiring, truck vibrates when breaking when accelerating the engine cuts out dealership confirmed at service on 2/4/2025 that sensor needs to be replaced, need breaks, four tire rotation No No

Filed Mar 5, 2025 · Transmission · IL

The engine began to misfire and stumble while idling. There was smoke present from the tail pipe when you would take off from the stop light. After Toyota ran an oil consumption campaign they came to the conclusion that the valve guides were bad and they need to replace both heads on the vehicle. It took 3 week for the repairs to be completed.

Filed Jan 25, 2025 · Brakes, Driver assistance · IL

The engine has 13,441 miles on it and it has been consuming 4 quarts of oil in 1700 miles. The dealer sealed the engine and is performing an oil consumption test. Approximately 500 mile into the test the check engine light started flashing due to a misfire. The dealer found that the #1plug was fouled out and had to be replaced. At 1029 miles into the test the truck was idling in a parking lot for about 8 minutes when it started to misfire and stumble. After stepping on the throttle to clear out the misfire, the dash lit flashing multiple warnings including the breaking system was stuck on hindering the truck from being able to move. After several restarts and playing with the parking brake I managed to get the parking brake off. It still had the flashing check engine light on and flashing. The pre-collision light was flashing, along with the traction control light was flashing and none of the safety systems were working.

Filed Jun 9, 2024 · Engine, Transmission · AZ

The engine has rough idle, the dealership says they see a misfire and they say is normal for the vehicle to do this, is a brand new vehicle I bought with 9 miles im at 14 thousands now, and the truck has died using the 4wd and completely turned off, i took it to the dealership and they said the same like the engine, they cleared codes and thats all, i dont trust this vehicle i left it stranded on the sand once and the recalls they dont have solutions for any of them, toyota is neglecting customers now.

Filed Jun 1, 2024 · Brakes, Engine · TX

While traveling at highway speed, with no warning my truck lost acceleration power. There were other vehicles in the road, and I had to travel across multiple lanes to get to an exit while the vehicle was continuously slowing down. This put myself and my children at risk due to the sudden loss of power. I was able to exit and turn the engine off, after which, the problem seemed to stop. I took my truck to the dealership where it was purchased to have them check the truck, and they were unable to reproduce the problem. Their inspection only showed them that there were engine misfires. They told me the issue would need to be reproduced or would need to happen to me again before anything could be done about it or before they could get Toyota involved. I did explain that I had the "Reduced Engine Power" and "Brake System Malfunction" warning light that, through my research, have been experienced with other Tundra owners when they had "engine failures."