Cylinder 4-5 which caused catastrophic engine failure. CP4 fuel pump. Crank shaft broken, Metal flakes in oil. Differential service. Was on the road from [XXX] to [XXX] and broke down in [XXX]. Just bought the truck from Lakeland Automall on May 8th and broke down on May 31st. Was in a bad spot to pull over and from what I have gathered we were lucky the Truck didn't catch fire. The problem has been confirmed by the Nissan dealership in [XXX] and also by an independent. As of yet it has not been inspected by the manufacturer, police or insurance representatives. My next call will be to my insurance company for inspection. I was hoping I would be able to fix it on my own by to no avail. No warning lamps or messages before. It started making clanking sounds, we pulled over and then that is when the engine light came on. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
2018 Nissan Titan engine problems
45 complaints (50% of all complaints for this car). Typical mileage when it fails: 6,000.
- owner complaints
- 45
- of this car's complaints
- 50%
- typical mileage
- 6,000
- crashes
- 0
- recalls
- 0
Which part fails
Owners did not name a specific part.
At what mileage
Complaints by mileage at the time of the problem.
Nissan Titan engine problems in other years
Specific symptoms reported on the 2018 Nissan Titan engine
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Engine failure 15Loss of power 10Knocking 8Check engine light 7Stalling 6
Related recalls
No recalls on record for this model year.
Related investigations
Loss of motive power due to broken crankshaft with no ability to restart.
On November 15, 2023, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE23020 to investigate allegations of loss of motive power in model year (MY) 2016 through 2019 Nissan Titan XD trucks equipped with 5.0L Cummins diesel engines.  The complaints allege the condition was due to a failure of the engine crankshaft.  The purpose of the investigation was to understand the scope, frequency, and safety related consequence of the alleged defect. During the investigation, it was found that the subject vehicles can experience a loss of motive power due to a failure of the crankshaft main bearings which can lead to a fractured crankshaft. This resulted in a loss of motive power and an inability to restart. An analysis of all complaint sources shows many vehicles exhibit knocking, vibration, malfunction indicator lamp (MIL) warnings, and/or poor engine performance prior to a total failure.  Some consumers report driving their truck in for repairs only to be diagnosed with a failed crankshaft.  ODI has not identified any injuries or fires attributable to this failure. ODI is aware of one complaint alleging a non-injury crash involving a curb strike. ODI is also aware of complaints of overheating starter motors and melted starter motor wiring occurring after prolonged attempts to start engines that have suffered a broken crankshaft. In its response to ODI's January 26, 2024 information request letter, Nissan provided information detailing several material and process changes involved in the production of the subject vehicleâs engine.These changes appear to coincide with incremental improvements in failure rates but there is no indication that a single factor was the primary cause of the failures. Analysis of ODI consumer complaints and manufacturer provided data found that failure rates decreased progressively for each model year. Review of failure mileage found that 50% of the failures occurred by 60,000 miles with a significant decrease in failures after 80,000 miles. Assuming average yearly mileage driven, the newest model year trucks (2019) would be near or past peak failure mileage. Given the low failure rate, the observable warnings available to the driver, and much of the fleet being past peak failure mileage, ODI is closing this Preliminary Evaluation with no further action. The closing of the investigation does not constitute a finding by the federal safety agency that a defect does not exist, and the federal safety agency will take further action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to
PE23020
What 2018 Nissan Titan owners say
Most recent owner complaints, unedited.
My crankshaft broke on the highway. I was travelling at around 70mph. No warnings were given. I lost all power and had to limp it off to the side of the road. The engine was replaced under warranty. This is an ongoing issue for 2016-2019 Nissan Titans. Folks are left with worthless vehicles because they are outside of their warranty period when it happens.
The contact owns a 2018 Nissan Titan. The contact stated that while driving at 40 MPH and accelerating, the vehicle shut off. The contact stated that there was an abnormal pop before the vehicle lost motive power and was pulled over to the shoulder of the roadway. The vehicle was towed to a local dealer, where it was diagnosed with a fractured crankshaft, rod bearings, and engine failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 127,000.
The contact owns a 2018 Nissan Titan. The contact stated that while refueling, there was an engine run-on after the vehicle was turned off. The contact determined there was a vapor lock issue and that air was entering the fuel system. The vehicle was difficult to start. There was an abnormal clicking sound coming from the vehicle. There were no warning lights illuminated. Upon research, the contact determined that the failure was like TSB: NTB19-049. The contact used a scanner and determined the failure was related to the fuel pump module. The local dealer was contacted and confirmed that parts were on back order. The contact called another local dealer, Victory Nissan Parts Center (307 Thompson Ln, Nashville, TN 37211); who confirmed that parts were backordered for approximately 6 to 8 months. The failure mileage was approximately 62,000.
Imminent catastrophic engine failure on 2018 Nissan Titan. The engine has developed severe cylinder wall scuffing and loss of compression (150psi vs 264psi spec) on multiple cylinders. This defect can cause loss of power and potential stalling at highway speeds, presenting a safety risk. The failure matches Nissan TSB NTB19-057 (knock/scuffing). Despite a perfect maintenance history, Nissan is denying warranty coverage by claiming there was no oil change service record because the maintenance was not done at a Nissan dealership. The local Nissan dealership confirmed the issue matches the TSB and an independent inspection confirmed the defect is mechanical (piston/cylinder clearance).
1. Turbo Actuator / Dealer is currently replacing the defective part. 2. When this part fails, you lose throttle control and acceleration capabilities. This part failed on me at highway speeds, and I had to drift over several lanes of high-speed traffic. I was unable to control the speed of my vehicle, with no ability to accelerate. 3. Not sure if they duplicated or are replacing the part solely by the check engine code of P00AH DTC (Check engine code). 4. It is a known issue with Nissan, and they have extended warranty coverage for 2016 and 2017 model year Titans with the diesel motor, but have refused to address it with the 2018 model, even with the same symptoms and DTC. 5.No, when the failure occurred, the check engine light came on, and the truck lost power. Occurred around September 25, 2025, mileage is 61,489. A claim was filed with Nissan North America under case # 55882533, and they have denied to cover the repair.
Truck died driving at highway speed, towed vehicle to Nissan dealership, and was quoted at or above 30 thousand dollars in repairs related the dreaded CP4 fuel pump system that has failed on the truck that only had 134,000 miles.
Engine failure. On rural highway with recreational traffic, engine started rattling, within 5 seconds the engine shut off, luckily I was able to get on the shoulder. My truck is currently at a repair facility 300 miles from my home. Waiting on information from shop and extended warranty company. No warning lights whatsoever.
My 2018 Nissan Titan has suffered two engine failures within two years, with fewer than 37,000 miles on the vehicle. Despite following all scheduled preventive maintenance, the engines failed catastrophically. One of these failures occurred with my family in the vehicle, placing their safety at serious risk. Details: The first engine failure happened at approximately [30,000], and the second at around [37,000], both requiring full engine replacements. These were not minor issues — they were sudden, complete losses of engine power. The second failure was especially dangerous, occurring while driving with my family onboard. Despite clear signs of a major defect or systemic issue, Nissan has refused to take responsibility, treating these catastrophic events as if they are routine, isolated failures. I followed all required maintenance schedules, and the vehicle was well cared for. Nissan’s lack of accountability is unacceptable and deeply disappointing. Based on this experience and their failure to stand behind their product, I will not purchase another Nissan vehicle and cannot recommend the brand to others. I am submitting this report to urge the federal safety agency to investigate this issue as a potential safety and manufacturing defect that could affect more owners and put more families at risk.
Component Turbocharger, power train Safety vehicle would not restart so was stranded on highway Unknown if others have had similar issues Components have not been examined at this time but are available Warnings, 1st check engine, 2nd power reduced, 3rd engine was dead Going uphill on the interstate, the check engine light came on. I then observed the turbo boost climbing to 30 PSI, dark smoke coming out of the exhaust, and white smoke. I was attempting to pull over while this happened. When I got to the shoulder of the road , the vehicle was disabled, and coolant was pouring out of the overflow onto the ground. The vehicle needed to be towed to Great Falls, where it is awaiting repair. Vehicle is still not running at this time
Questions about the 2018 Nissan Titan engine
Does the 2018 Nissan Titan have engine problems?
Owners have filed 45 complaints about the engine of the 2018 Nissan Titan, 50% of all its complaints, more than any other problem.
At what mileage do 2018 Nissan Titan engine problems start?
The typical (median) mileage in owner complaints is 6,000 miles.
Was there a recall on the 2018 Nissan Titan engine?
There is no recall for this problem on this model year.
What year does the Nissan Titan have bad engine?
The Nissan Titan model years with the most engine complaints are 2004 (132 complaints), 2005 (120 complaints) and 2017 (102 complaints).
Other 2018 Nissan Titan problems
Fuel system 18Transmission 16Electrical 15Acceleration 6Steering 3Tires 3Airbags 2Brakes 2Driver assistance 2Seats 2Lights 1Seat belts 1Wheels 1
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