2019 Nissan Altima Fuel system Problems

Coolant leak not visible egr cooler and egr valve malfunction catalytic converter malfunction. Diagnosted at nissan a known issue with nissan make and model.

NHTSA ID

11748154

Incident

Sep 10, 2025

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.

NHTSA ID

11733523

Incident

Mar 1, 2026

I've been having engine & engine cooling problems also fuel system how many car starting up etc.I've been having this problem around July

NHTSA ID

11701876

Incident

Jul 10, 2025

On August 30, 2025, while driving on the highway, my 2019 Nissan Altima displayed a “CVT (AT) Hot / Power Reduced” warning. Power was limited, but the engine did not shut off. I immediately scheduled service at Paul Miller Nissan in Fairfield, CT. At the September 2, 2025 visit, the repair order stated: “Customer states CVT (AT) Hot Power Reduced display in dash. All past codes stored; cleared all past codes stored.” No complete diagnostic test, CVT pressure test, or fluid inspection was performed. The dealership did not preserve the freeze-frame data from the TCM. I was told that no current fault codes were present and that the vehicle was safe to operate. Relying on the dealership’s professional assurance, I continued normal use of the vehicle. About a couple of weeks later, the vehicle began to jerk and lose smooth acceleration intermittently, worsening by the sixth week. I promptly returned for service. On October 21–22, 2025, the same dealership confirmed transmission codes P0776 and P17F0, diagnosing a CVT failure and recommending full replacement. When questioned about prior diagnostic data, the service manager stated that all data from the September visit had been cleared and that the freeze-frame information was deleted and no longer available. This handling contradicts Nissan’s standard CVT diagnostic protocol, which requires documenting stored codes, inspecting CVT fluid condition, and recording internal temperatures before clearing data. Nissan Consumer Affairs later stated their review relied solely on the dealership’s findings and that missing diagnostic data would not be retrieved. Since the confirmed failure, I have been forced to rent a vehicle at my own expense, exceeding $1000 to date. The vehicle’s reduced power and transmission failure created a serious safety risk, especially as I transport my children in this vehicle. The dealership’s erasure of diagnostic evidence prevented accurate evaluation and timely repair. The issue remains unresolved.

NHTSA ID

11698682

Incident

Aug 30, 2025

The contact owns a 2019 Nissan Altima. The contact stated that while driving at various speeds, the engine overheated and hot air came out of the vents, entering the cabin of the vehicle. The vehicle was taken to the dealer, who diagnosed that the coolant reservoir needed to be refilled. The dealer refilled the coolant reservoir. The failure persisted, and the vehicle was returned to the dealer, who then diagnosed that the radiator thermostat had failed. The thermostat was replaced; however, the failure reoccurred approximately 3 weeks after the repair. While driving approximately 30 MPH, the engine started to overheat, and the temperature gauge moved to "High". The vehicle stalled while on the side of the road and waited for approximately 30 minutes before being able to restart and drive to the residence. The vehicle was taken to the dealer, who diagnosed that the engine and failed and needed to be replaced. The vehicle was not repaired. The contact found information on NHTSA Campaign Numbers: 19V316000 (Fuel System, Gasoline) and 18V922000 (Fuel System, Gasoline); however, the VIN was not included in the recalls. The manufacturer was not made aware of the issue. The failure mileage was approximately 150,000.

NHTSA ID

11695388

Incident

Aug 24, 2025

Mileage

150,000 mi

I GET ERROR MESSAGE FOR MY 2019 NISSAN ALTIMA OF ENGINE MALFUNCTION, REDUCE POWER, SERVICE NOW. ALONG WITH OTHER SAFTY FEATURES LIKE CASH DETECTION, TRACTION AND ENGINE LIGHT. MY CAR SHAKES, FEELS LIKE IT WILL STALL ESPECIALLY WHEN STOPPED AND JERKS. MY VIN DOES NOT SHOW THIS RECALL. I HAVE GOTTEN THIS MESSAGE SEVERAL TIMES AND A OBD CODE READER GIVES CODE P0404.

NHTSA ID

11693179

Incident

Oct 6, 2025

My car since 45000 miles has had an acceleration issue. When I engage the gas pedal, 3- 5 seconds pass before the vehicle moves. Once moving, the engine will stutter or slightly jerk forward and backwards, almost to a stalling point. The safety issue is the potential for accident as cars may collide with me from the side or rear not seeing the issue I’m having. Dealership refuses to fix telling me not to bring it in until a check engine light is on. There is electrical malfunctions happening in my car as I near 100k miles still having this issue. In research, many if not all Altima owners are reporting this acceleration issue, there are countless, so much so, the talk is wondering why no recall has been issued. A lawsuit was also filed, Judge dismissed, but plaintiffs were taken care of and problems rectified. If I don’t make a complaint, I’m not doing my part to advance this issue to a higher level. Thank you for listening and taking my voice seriously.

NHTSA ID

11614079

Incident

Sep 8, 2021

Sometimes my car loses power when accelerating, other times it takes around 10 seconds to get going.

NHTSA ID

11586448

Incident

Feb 8, 2024

Check Engine Light "P0087" "Fuel Rail/System Pressure-Too Low" Engine Stall Message- Its a recall out already just not for all 2019 Nissan Altima whixh it should be

NHTSA ID

11581884

Incident

Apr 8, 2024

Receiving Engine Stall Message when hitting gas.

NHTSA ID

11530086

Incident

Jul 3, 2023

When the cruise control is on and I push on the brake to merge lanes or because a vehicle in front of me stops, the car continues to accelerate and gets stuck in acceleration the RPMs go up wildly.

NHTSA ID

11486059

Incident

Sep 23, 2022

Noise when shift from d to p or reverse

NHTSA ID

11417363

Incident

May 16, 2021

THE GAS TANK NOTIFICATION SAYS THAT I HAVE NO GAS WHEN I HAVE GAS IN THE CAR IT ALSO GIVES ME A BURNT SMELL AND LOUD STATIC NOISE EVEN WHEN THE CAR IS OFF, THE STEREO STOPPED WORKING AND I JUST BOUGHT THE CAR 5/5/19

NHTSA ID

11209980

Incident

May 19, 2019

Mileage

300 mi