Toyota Tundra misfire problems

Filed Nov 8, 2026 · Engine · NY

My vehicle has had rough idle, and at times it hesitates where I've come very close to being struck by another vehicle.

Filed Sep 15, 2026 · Engine, Transmission · TX

On XXX6, while driving on the highway at approximately 89 mph and 36,714 miles, the engine misfired and the vehicle began shaking. The check engine light started flashing and a "reduced power, visit dealer" message appeared, along with a loss of motive power. The vehicle was taken to an authorized dealer on XXX at 37,032 miles. The dealer's repair order documents stored diagnostic trouble codes for random misfires, and states that freeze frame data confirmed misfires on cylinders 3, 4 and 5 at 89 mph and 2700 rpm in direct injection mode. Despite this, the repair order was closed as "no issue found." No repair and no further diagnosis was performed. The dealer stated the condition could not be duplicated after driving the vehicle and idling it for about an hour. The vehicle is subject to an open safety recall for machining debris in the engine (the federal safety agency 25V767, manufacturer 25TB14), for which no remedy is available. The recall summary lists engine knocking, rough running, no-start and loss of motive power as symptoms, and instructs owners experiencing symptoms to contact their dealer. When contacted, the dealer stated the manufacturer is still developing a remedy and that the vehicle can either wait indefinitely or be picked up as is. The defect remains undiagnosed and unrepaired. The vehicle is available for inspection. The safety concern is a sudden loss of motive power at highway speed, which is the same risk identified in the manufacturer's own recall filing. No remedy has been made available more than ten months after the recall was filed. Video of the failure as it occurred, showing the check engine light flashing and the loss of power: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 21, 2026 · Engine · MA

While driving my 2024 Toyota Tundra, the check engine light illuminated and the vehicle suddenly experienced reduced engine power. I safely pulled over, shut the engine off, and restarted it. After restarting, the vehicle appeared to operate normally, but a diagnostic scan showed DTC P0300 (Random/Multiple Cylinder Misfire). On July 20, 2026, I brought the vehicle to an authorized Toyota dealer for inspection. During the inspection, the dealer found significant metal shavings in the engine oil, indicating a possible internal engine failure. Based on these findings, the dealer instructed me not to drive the vehicle and retained it at the dealership because they considered it unsafe to operate. My vehicle is already included in Toyota’s engine recall related to engine manufacturing defects. However, despite the dealer confirming the presence of significant metal shavings and advising that the vehicle should not be driven, no repair or resolution has been provided. The dealer has been unable to provide an estimated repair timeline or when the vehicle will be returned to service. The vehicle is available for inspection. No crash or injuries occurred. Prior to the incident, there were no warning signs or abnormal symptoms. The check engine light and reduced engine power occurred suddenly while driving. The unexpected loss of engine power created a significant safety risk, particularly while driving at highway speeds or in traffic. I am also concerned that an apparent internal engine failure occurred with little or no warning. In addition, because the dealer has retained the vehicle and no rental or alternate transportation has been provided, I have been left without transportation while waiting for a resolution.

Filed Jun 13, 2026 · Engine · VA

Vehicle surges sometimes and repeatedly from a stop, with delayed acceleration; very dangerous when merging or moving from a stopped position into a flow of traffic (such as turning right on red). Vehicle sometimes will not move at all under acceleration, as if it has no gas at all. Vehicle is under recall for both of these issues related to the engine, but "no remedy available." Latest incident of surging was less than a week ago. Happens 2-3 times a day on average. Vehicle will occasionally randomly run rough at stoplights / idle speed. I have contacted Toyota regarding a buyback and they stated they "could not offer a buyback because they have not had adequate chances to fix the problem." So they have told me they cannot fix the problem, but won't buy back the truck because they have not had a chance to fix the problem (that they cannot fix). They have since stonewalled me and no longer respond to communications.

Filed Jan 27, 2026 · Driver assistance, Electrical · NC

When starting up my truck in the morning there is rough idle that cause truck to sputter and sound horrible. It eventually smooths out but I believe the computer needs flashing. When I look online some have a recall for the engine 3UR-FBE / 2018 Toyota tundra, but when I put in my vin # it shows no recall and throws off check engine light Code. Also my radar sensor that it on for cruise control is showing up on dash please contact dealer and flashing. They have replaced this before with recall and now it’s acting up again. Also traction control is lighting up I. The dash as well blinking along with all these codes.

Filed Jan 3, 2026 · Fuel system · LA

Began experiencing long cranking, difficulty starting, then rough idling. Started researching online and found recalls for 2018 -2019 Flex fuel 5.7 Tundras. My 2017 is also a Flex fuel 5.7 with exactly the same issue. Dealer says 2017 not covered. I had to pay over $2000 to have the fuel pump replaced, ECM reprogrammed. I don’t understand why 2017 was not included in the recall. Please the federal safety agency consider extending this recall to 2017. I am reading numerous complaints on this website about the same issue from owners of 2017 Flex fuel Tundras.

Filed Dec 12, 2025 · Electrical, Engine · MD

The vehicle will hesitate incredibly bad when driving in normal mode, when you go to take off from a stop or a rolling stop at a yield sign, the engine and system simply does not engage.It's about a three second delay, and then the vehicle takes off like a rocket, I have also had misfire engine codes that have left me on the side of the road with this vehicle, once you know about the hesitancy of the starting takeoff, you know, not to pull off in front of somebody as often.There is a delay in the throttle response of the vehicle. Have also had several infotainment system issues where the system goes totally blank or shows the front camera when in reverse, we use this vehicle for business, and all the issues have been a major concern of mine, as they are all safety issues.

Filed Dec 5, 2025 · Engine · IA

On Aug 1st I started noticing a slight shake in the vehicle on the way to work in the morning. I can best describe this shake or shutter like an imbalanced tire or a misfire. On the way home I noticed that the shutter was only present around 1,100-1,300RPMs while under gentle acceleration. About 6 miles from home I noticed the engine would bog down from time to time and shortly after I could hear a slight metallic sound. It was not until I got into town where I was set a slower road speed that I could clearly hear that the metallic sound was a rod knock. I have the hybrid model of the new Tundras, and on that last bit of stretch getting home in town the truck never threw an error or even understood that it was having an engine failure. Towards the end it would kick the engine on and off trying to flip flop between hybrid/EV mode and ICE mode. And some of those instances I think the engine was stalling out. Mine engine never seized up fully, but if it had I question whether or not the ECU would have understood this to disengage the engine from the drivetrain to propel itself only on the MG. As of today (12/5/25) my truck is still down at the shop because of this engine failure. Toyota originally covered a short block replacement under warranty. After the dealership assembled that new engine they are having nothing but one problem after another. After about a month to a month and a half of fighting the new engine Toyota's FTS got involved, were they ordered the new engine to be disassembled for investigation. They found that the new engine had completely destroyed itself, and they claim the cause was from the technician not applying assembly lube on the camshafts. After that Toyota blamed the technician at the dealership and refused to help fix my truck (which is well within the drivetrain warranty). I now have an open arbortation case with the NCDS for this.

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