Engine And Engine Cooling Problems of Nissan Altima - part 1

While operating my 2018 Nissan Altima on September 19, 2026, at approximately 9:20 a. M. , during daytime highway traffic, the vehicle suffered a sudden and complete loss of propulsion, leaving me entirely immobilized on a highway ramp with no ability to accelerate or move out of danger. I was stranded in an extremely hazardous location with vehicles, including large commercial trucks, traveling nearby at highway speeds. I feared for my life because I had no way to move my vehicle to safety or protect myself from a potential collision. The situation was so dangerous that a state trooper with highway patrol had to intervene and arrange assistance to have my disabled vehicle removed from the highway. Had highway patrol not arrived, I genuinely believe I could have lost my life. This was not a minor inconvenience or an ordinary vehicle breakdown. It was a potentially fatal safety incident caused by the vehicle's sudden and complete inability to move. Following the incident, an independent repair facility inspected the vehicle and determined that the transmission requires replacement. The diagnostic findings included p17f0 (cvt judder), p0776 (pressure control solenoid b performance/stuck off), and p2813 (pressure control solenoid g control circuit range/performance). Before the complete failure, the vehicle had experienced hesitation, vibration, and difficulty accelerating. I am extremely concerned that this type of transmission failure can occur suddenly while a vehicle is operating in active highway traffic, potentially resulting in a serious or fatal collision. I am requesting that NHTSA investigate this incident as a significant vehicle safety concern and determine whether a safety-related defect exists in the cvt transmission system of the 2018 Nissan Altima. I have supporting diagnostic documentation and towing records, and the vehicle is available for inspection.

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The contact owns a 2019 Nissan Altima. The vehicle was taken to a local dealer for a trade-in, and during the test drive, the vehicle went into limp mode. The vehicle was towed to an independent mechanic who determined that the cam actuator and the bearings were falling apart. The mechanic informed the contact about NHTSA campaign number: 25v437000 (engine and engine cooling). The vehicle was towed to the local dealer, where it was diagnosed and determined that there were metal shavings inside the oil and in the oil pan. The engine replacement fees were provided. The vehicle had not been repaired. The manufacturer was contacted and advised that the mechanic was unable to force the dealer to repair the vehicle. The approximate failure mileage was 80,000.

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The contact owns a 2019 Nissan Altima. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated, and the engine seized. The vehicle was towed to the residence. The vehicle was later towed to an independent mechanic, where it was diagnosed with internal engine failure. The contact was informed that there was oil leaking onto the spark plugs. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was contacted by phone and made aware of the failure. The contact was awaiting a return call from the manufacturer. The failure mileage was approximately 70,000.

Cracked engine head- the vehicle is around 165,000 miles and the engine has cracked. No collisions or crashes or any fault of owner. At around 100,000 miles all four doors had the actuators stop working within 1 week. All doors now must be manually locked and unlocked.

Ever since I bought the car with zero miles I been having electrical issues. From reverse camera to low wash fluid light that doesn’t turned off . Now even when it’s over 100 degrees outside my car marks inside that’s 26 degrees . And now my ac completely stopped working. I don’t know what to do I only owe $4,000 on my car.

I was driving down the freeway at about 70 miles an hour. When a warning came up, saying engine malfunction power reduced, the car then started the shaking a bit and not getting any power. Smoke started pouring out of the hood. I then pulled over open the hood. It was then on fire(small). I put it out with some water. And then the car was unable to start. I then towed it to my house and I'm waiting here on inspection.

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While heading west on interstate after a drs. Appointment my wife was driving our 2021 Nissan Altima when suddenly there was a loss of power to the engine as if the engine was overheating or had loss of fuel or only able to slowly exit the freeway to a safe place and call a tow truck, after 1 1/2 days of diagnosing and testing. I was able to drive the vehicle with no issues for approximately 4000 miles when the exact problem has occurred this past Friday 6-19-2026.

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The contact owns a 2020 Nissan Altima. The contact stated that while driving at an undisclosed speed, the message "engine malfunction" was displayed. Additionally, the vehicle experienced excessive coolant consumption and the engine overheated. The vehicle was taken to an independent mechanic, where the thermostat was replaced; however, the failure recurred and worsened. The vehicle was returned to an independent mechanic, where it was diagnosed with a cooling system and head gasket failure. The dealer was contacted and provided with the diagnostic trouble codes, and the dealer recommended an engine replacement. The vehicle was not repaired and remained parked at the residence for two months. The manufacturer was not notified of the failure. The failure mileage was unknown.

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Often while driving the car loses power as if the power went off or I ran out of gas,,, studder for a moment then pick up power to continue to drive is the best way I can describe it. Immediately after I get a notification on the dashboard saying maintenance something.

What component or system failed or malfunctioned, and is it available for inspection upon request? the engine control module (ecm) is malfunctioning, triggering persistent p0101 codes related to the mass air flow (maf) sensor. This specific issue is addressed in Nissan technical service bulletin de97aa, which recommends an ecm reprogramming. The component is still installed in the vehicle and is available for inspection. ? • how was your safety or the safety of others put at risk? when the vehicle is at a complete stop and I attempt to accelerate, it becomes jumpy and unresponsive, refusing to accelerate properly. This creates a serious safety hazard, especially when trying to merge into traffic or cross intersections, as I am unable to match the speed of other vehicles. This increases the risk of being rear-ended or causing an accident due to unexpectedly slow acceleration. ? • has the problem been reproduced or confirmed by a dealer or independent service center? yes. An independent mechanic diagnosed the issue and confirmed the code p0101. After reviewing Nissan’s official TSB de97aa, they advised me to go to a Nissan dealership to have the ecm reprogrammed as outlined in the bulletin. ? • has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? the vehicle was inspected by an independent mechanic, but not yet by the manufacturer. The dealership is aware of the issue but has refused to perform the repair without payment. ? • were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? yes. The check engine light is consistently triggered by code p0101, and the traction control warning light also comes on when the issue is active. The symptoms appeared recently and continue to recur even after the code is reset by standard non-dealership methods like unplugging the battery.

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The car stalls and began to jerk then shuts down the crash symbols comes on and goes off.

Dealership found metal contamination in oil pan from engine. They diagnosed as car needing a new engine due to engine failure. The car only has 90,000 miles and it’s a 2021.

Vehicle: 2005 Nissan Altima | VIN: [xxx] to the executive team and legal counsel, I am writing this under extreme duress following a catastrophic, life-threatening vehicle failure on April 23, 2026, in ripley, wv. While transporting my [xxx] son, my 2005 Nissan Altima suffered a sudden engine stall, followed by the engine bay becoming saturated with oil and emitting heavy smoke. This event is the direct result of Nissan’s failure to remediate known federal safety defects, specifically NHTSA recall 07v527000 (crankshaft sensor/stalling) and NHTSA recall 06v223000 (oil consumption/fire risk). Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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Hi, my name is [xxx] . I rented a car through [xxx] , and I need to report serious mechanical issues. All of the spark plugs are not secured, as they are missing screws, and oil is present. The only reason I know is because of the check light engine being on one minute and off the next. I chose to get it looked at and when being examined it was a noticed additionally, the cooling reservoir tank is missing its top, leaving the system exposed. Please advise on next steps as soon as possible, as this is a safety concern. Thank you. ” information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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While driving my 2005 Nissan Altima in active traffic with my [xxx] child, the vehicle suddenly stalled without any warning. The engine completely shut off while in motion, creating an immediately safety hazard in live traffic conditions. Immediately after the stall, I observed oil leakage and smoke entering the cabin. The vehicle became inoperable and we were stranded roadside. This failure is consistent with a known defect involving the crankshaft position sensor and engine control system addressed in NHTSA campaign 07v-527, which describes sudden engine stall without warning due to sensor signal interruption. Although my vehicle previously received recall-related service, this incident suggests the prior remedy did not prevent recurrence of the defect. Sudden engine shutdown while driving in traffic loss of vehicle power without warning smoke entering passenger cabin risk of crash involving child passenger request: I am requesting that NHTSA: review this incident for potential recall remedy failure investigate whether this represents recurrence of a known defect determine whether additional corrective action is needed for this vehicle population information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I purchased a 2022 Nissan Altima from drive time with 90,000 miles on it. I would have had this car for 2 years this month in may. The car currently has about 122,587 miles on it and has transmission cvt failure. I notice pulling, not being able to accelerate while car was in motion, and while car was stop at green light waiting to procced. While hitting the gas the car would go into limp mode and it would be hard to drive. I've gotten three different diagnose that transmission was getting ready to go out.

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See attached document for complaint.

The engine mounted high pressure fuel pump became loose and unseated because the engine-side mounting threads failed. The pump lifted off its mounting surface, the head of the engine, and oil came out around the top of the engine. This failure caused sudden loss of engine power and created a potential safety hazard because the vehicle could lose power unexpectedly in traffic and there was fluid leakage in the engine compartment near hot engine components. The problem was confirmed by a Nissan dealer. The dealer inspected the vehicle, documented the failed mounting area on the engine head, and submitted a goodwill warranty claim to Nissan, which was denied. Prior to the failure, there were no 18repairs or service in this area from the factory. Symptoms at the time of failure were loss of power and visible oil leakage from the top/right side of the engine. No warning lamps/messages prior to the mechanical failure. Vehicle had 60,845 miles at the time of failure.

The contact owns a 2021 Nissan Altima. The contact stated that after stopping at a traffic light, the accelerator pedal was depressed, and the vehicle went into limp mode. The check engine warning light was illuminated. The vehicle was taken to a local independent mechanic, where it was determined that there was debris in the engine oil pan. The vehicle was taken to a local dealer, and debris was found in the engine oil pan. Upon further investigation, the contact related the failure to nhsta campaign: 26v080000 (engine and engine cooling); however, the VIN was not included. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 118,000.

I’ve owned this vehicle since March 2023, and I have experienced several electrical issues. For instance, my car displays a malfunction warning and the check engine light multiple times throughout the month. When the engine malfunction warning appears, the engine will not accelerate, and if the vehicle is idling, it will shut off. I then have to restart the car. Another issue involves the door locks. I am sometimes unable to lock my doors using the key, or the lock will get stuck and not open. I have also seen other complaints reporting the same issue. This is concerning and poses a safety hazard.

I continuously have issues with it showing a crash and with the warning "engine malfunction, power reduced, service now" light coming on. This has been a recurring issue. There is always a light coming on in this car. I don't know if it is sensitive sensors or if it was poorly made.

The warming lights for different items come on at random. Examples :low washer fluid, gas cap open, speedometer digital speed not showing.

Message popped up while driving saying “engine malfunction power reduced service now”. Pairs with the check engine light coming on.

My 2024 Nissan Altima, with approximately 13,000 miles stalled while driving in 10 degree fahrenheit weather with snow on the road. My speed was around 45 mph. The vehicle immediately stalled and all the lights on the dashboard went on. The warning flashed something about an engine error. The brakes seized up while in snowy weather and with cars very close behind me. Easily could have caused an accident and was a pretty scary event. The car is maintained well and have very low mileage and is taken care of well. I slowed down and then another error screen popped up saying to immediately take care for service. While I was attempted to slow down with brake pedal super hard to push; I attempted to put car in neutral with my hazard lights on by now. Car started again while I was coasting about 20 mph, with engine light showing. I immediately took it to the closest dealership to me for service and left it there. This is completely unacceptable behavior for a new car of this type and I never experience anything ever like this with my old 2012 Nissan Altima. This could have caused a very bad accident had I not been driving and my wife or something else not as calm as me were to be driving. I suggest investigating this because I have read about recalls for this type of thing on previous models of Nissans. Currently vehicle is parked at dealership for service on 1-24-2026.

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Nissan Altima torque strut mount and passenger side motor mount failure.

I received a recall # r25b1 for my Nissan Altima 2020. I visited my local Nissan dealer in chelmsford, MA, on December 30, 2025. They explained that they saw an issue and that I would need a new engine. There are 32,000 miles on this vehicle. They began the process but were then told by Nissan corporate that it did not meet the requirements of the recall, and they would not be replacing it. I am in the process of heading on a long driving trip and am very concerned with how this was handled. Nissan customer relations explained it wasn't covered under warranty, which has nothing to do with a recall. I am very frustrated and disappointed in Nissan. The mechanics at Nissan in chelmsford took photos and sent them to Nissan, and they still denied it. With the car only having 32000 miles on it, it was probably if anything at the beginning of the failure. Please advise on going forward.

Need a new engine / gasket confirmed by pep boys. Been at the dealership a lot more than usual lately and they kept telling me everything is fine with my vehicle.

My mechanic noticed oil leaking near the oil pressure switch during a routine oil change. Told me to take it to dealership since I should still be under warranty. When I took it in, they very quickly were able to access that the oil pressure switch was faulty. Mechanic said it is a known problem. If it is a known issue, why not recall it?!.

Attempted to start 2023 Nissan Altima. Engine did not turn over. Dashboard lights came on and then shut off. No further response. Had Altima towed to Nissan dealer and after two weeks of sitting at the dealership. We were informed that the bcm unit needed to be replaced and fobs reprogrammed. Cause of bcm failure unknown.

This incident happened twice in one week first with 2023 Nissan sentra then replaced with a 2024 Nissan Altima both rented from enterprise. I was traveling down the street from my house, a two-lane, steep hillside road, which I’ve traveled up and down for 30 years. I stopped behind a parked car on the right side of the road to let another car come up the hill and pass by before I continued down. As I continued down the hill, the car just began to accelerate and I could not stop it, I tried to break, but no response and the car kept accelerating for about 50 feet before crashing into. The granite hillside, lifting the car so it landed perpendicular to the road, setting off all airbags and blocking all traffic completely. Thankfully there was no other damage to other cars, homes or people, which was a minor miracle. To reach such an impact speed in such short distance suggests some kind of mechanical failure. My insurance paid for a replacement rental, a 2024 Altima and on my first drive down the hill, in the exact same spot, the steepest of the road, the exact thing happened, rapid acceleration and no breaks.

Problems with the engine and transmission.

I am writing to request immediate assistance regarding the recall inspection for my 2020 Nissan Altima platinum. Last week I received a letter notifying me of an open recall and instructing me to have my vehicle inspected. I brought my car to my local Nissan dealership on Saturday. During the inspection, I was told that metal debris was found in the engine and that the vehicle would need a full engine replacement. I was asked to leave the car at the dealership and was told I would receive a loaner vehicle on Monday. After waiting all day today for an update, I was informed that Nissan declined the engine replacement because the debris found did not “qualify” under the recall. I was told the dealership would clear the debris out of the engine and that I could pick up the car tomorrow. I am very concerned about this decision. Metal debris inside an engine—especially during an active recall related to engine failure—raises serious safety and reliability issues. Simply clearing out the debris does not address the root cause or provide confidence that the vehicle is safe to drive. This matter is urgent, as I must drive more than 1,000 miles soon to take my medically complex daughter to a children’s hospital. I need to trust that my vehicle is safe for long-distance travel. I am requesting a prompt review of my case and a second evaluation to determine whether an engine replacement or another appropriate remedy is necessary to ensure my vehicle’s safety.

My vehicle was taking to the dealership for an inspection for the Nissan engine recall. During the inspection metal was found in my oil pan which the recall states they must repair or replace engine if any metal is found. I was told the engine would be replaced on 11/15/2025 but 2 days later 11/17/2025 I was contacted saying Nissan denied my recall repair and to come back and pickup my vehicle. The recall states if any metal is found they must replace the engine but Nissan refuse to fix the issue. The report they showed me Saturday stated oil was in my oil pan but now since they denied the recall the report was changed to nothing was found in oil pan. I notied the manager and after I mentioned that to the service manager they changed the report again stating metal was found.

Thermostat has been replaced twice. Car is still having issues with overheating. First replacement of thermoastat the car ran fine for about 2 months then the car started doing the same thing. It will overheat and then come right down again. Thermostat was replace again and was doing good then the same issue keeps occuring. My car currently has 175000 miles. No warning lights come on when the vehicle begins to overheat.

When I am driving my car randomly states check engine and makes a beeping noise and then the engine starts to make some type of combustion noise and then slows down and then turns off.