2017 Nissan Pathfinder

SLUDGE IN ENGINE- UNDER 100,000 MILES We had been keeping up with all recommended services, and it is cosmetically perfect, but the car is now a total loss. A Check Engine light came on, and we began to notice a tremor/shake and took it to Southern Team Nissan. The Nissan dealer diagnosed sludge in the engine and said it would need a total engine replacement. The Nissan dealer advised that the cost of that would be more than the car was worth. After they pulled the pan to check if there was definitely sludge, the car then shook so badly that it felt unsafe to drive. Research shows that this is a known issue, with many cases of documented VQ35DD sludge problems. We see many listed cases on this website under complaints for 2017 Nissan Pathfinders.

The contact owns a 2017 Nissan Pathfinder. The contact stated that while driving in a parking lot at unknown speeds, the vehicle began jerking and stalled. The battery had become inoperable. The TPMS message was displayed. The failure was linked to Technical Service Bulletin: NTB15-015h. The local dealer was called and informed the contact that the failure was related to the CVT transmission and confirmed there was no coverage for the repair of the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 100,000.

Engine failure in my vehicle equipped with the VQ35DD engine, which I believe is the result of a widespread and well-documented design defect involving internal sludge buildup. I have owned this vehicle for over five years and have followed the recommended routine maintenance schedule, including on-time oil changes using high-quality oil. At no point during any inspection, service, or maintenance appointment was I informed of any sludge buildup or concerns with the engine. Only after a serious mechanical failure did the Nissan servicing dealership claim the engine was full of sludge, subsequently recommending an engine replacement. Despite my diligence in maintaining the vehicle, I am now facing an engine replacement that was entirely unexpected and has created a safety risk due to loss of motive power. This could have resulted in a serious accident, and I believe this issue merits urgent and transparent attention. Upon researching this issue, I found dozens of similar complaints from other owners with VQ35DD engines, many of whom reported premature engine failure, sludge accumulation, and PCV system defects—despite maintaining their vehicles properly. This issue is being widely discussed on forums, including: [XXX] [XXX] It is unacceptable that Nissan has not issued a technical service bulletin, recall, or extended warranty to address this problem, particularly when it may stem from a known defect in the PCV system or engine design (such as poor oil flow, crankcase ventilation failure, or GDI-related contamination). Given the facts outlined above and the potential safety hazard, a full investigation should be taken to help Nissan customers. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

PCV Valve hose clogging rendering system useless and resulting in sludge buildup in engine. The sludge buildup causes issues with timing chain lubrication and ultimately destroys the guides causing excessive engine rattling, aluminum flakes in the engine. Causes loss of power, numerous different engine codes, and ultimately catastrophic failure of engine. Hise collapses within itself and prevents proper crankcase ventilation. See attached pictures.

On Sunday [XXX] while driving to Savannah Georgia to attend a funeral my 2017 Nissan Pathfinder broke down. I was able to coast off the road out of traffic in the pouring rain. I had the vehicle towed to Statesboro tire and brake in Statesboro Georgia who was in network with my extended warranty company. On May 20th 2024 I was told the engine failed due to metal in the oil. They opened a claim and diagnosed the issue. The warranty company requested the oil pan be dropped and pictures to be submitted to them to continue with the claim. Upon further inspection there was sludge and noticeable metal in the oil pan. My extended warranty company denied the claim. I asked if i could submit my maintenance records to prove the vehicle had been maintained. I was told no by the warranty company and statesboro tire and brake didn't even submit them for me. So I had to pay for the work test had been done and have the vehicle towed back to Grovetown Ga. which is where I live. I contacted Nissan consumer relations at this point not knowing what else to do. They opened a claim and I then had the vehicle towed to the Nissan dealership near me. Which they did another diagnosis and the claim through them was also denied. I purchased this vehicle used from CarMax in Augusta Georgia with 41502 miles on it. Upon purchasing the vehicle I maintained the vehicle keeping up with all of the manufacturers recommendations for maintenance and service. I contacted CarMax to see if they could do anything because they are who I purchased the vehicle from. The service manager at CarMax was able to submit my records to the extended warranty company and the claim was approved. The engine is being replaced after almost 6 months of persistence. It is a used engine but at least it's a new engine to me. On [XXX] the vehicle had 100573 miles. There were no warning lights. The vehicle had no issues until it just died on that date. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2017 Nissan Pathfinder. The contact stated while driving at an undisclosed speed, the vehicle lost motive power. No warning lights were illuminated. The contact pulled over to the shoulder of the road and attempted to jumpstart the vehicle; however, the vehicle failed to restart. The vehicle was towed to the property and was later towed to a local dealer where it was diagnosed but no cause for the failure was identified. The contact stated that several weeks afterwards, the display screen went black before the vehicle lost motive power. The contact pulled over to the shoulder of the road and attempted to jump start the vehicle. The contact stated that the vehicle shut off as soon as the contact arrived at the local dealer. The vehicle was taken back to the same local dealer where it was diagnosed but no cause for the failure was identified. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 120,000.

Complete engine failure while driving on highway putting the safety of my family(including 2 young kids) at risk. We were able maneuver to the side of the road. We were stranded on side of highway in a very rural area at night with no power(no hazard lights, or heat) for a while. Car towed to Nissan dealership, who stated a new engine is needed. Paper work is available. For history, a new timing belt was installed in Fall 2023, but no issues since (no warnings, messages or problems).