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Class action lawsuit filed regarding certain Nissan Titan diesel trucks

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Nissan stopped providing the Cummins diesel engine in the Titan in 2020, even though it was a popular option for the Nissan Titan as buyers seemed to flock to the diesel option in the Titan XD. And now a class-action lawsuit has been filed for those who bought 2016-2019 Nissan Titan diesel trucks equipped with Cummins 5-liter engines.

The 5.0-liter Cummins turbodiesel V-8 packed a punch with 555 pound-feet of torque and a max towing capacity of 12,830 pounds.

Let’s take a look at the current lawsuit affecting these trucks.

Fuel system contamination

The first part of the lawsuit surrounds the confusing location of the diesel exhaust fluid filler tubes. The technical service bulletin (TSB) for the impacted trucks reads: “CAUTION: Putting Diesel Exhaust Fluid (DEF) into the diesel fuel system will contaminate the entire system causing permanent damage to system components. DEF contamination requires replacement of the complete diesel fuel system.”

According to the carcomplaints.com report: Nissan dealers were reminded of the damage caused by contaminating the diesel fuel, “IMPORTANT: Diesel fuel contaminated with DEF will damage the complete diesel fuel system and cause many symptoms, including but not limited to the following:”

  • Crank no start
  • Long crank or hard to start
  • Rough idle
  • Low power warning
  • Fuel gauge inoperable or erratic gauge operation
  • Noise from the stage one fuel pump

If you see any of these codes, it’s indicative of a problem related to this TSB:

  • P008A-00 LOW FUEL PRESSURE CONTROL SYSTEM
  • P00C6-00 FUEL RAIL PRESSURE
  • P0087 FRP CONTROL SYSTEM
  • P0463 FUEL LEVEL SENSOR
  • P2269-00 WATER IN FUEL CONDITION

Lastly, the bulletin informed dealers that an owner will be responsible if they make the mistake of adding diesel exhaust fluid to the diesel fuel tank.

Nissan Titan diesel exhaust fumes

In a separate issue, the class-action lawsuit claims there were diesel exhaust fumes inside the truck’s cabin and a Nissan dealer couldn’t find anything wrong to cause this.

Lawyers representing plaintiffs in this class-action lawsuit make some pretty bold accusations including:

“Because of Nissan’s “misplacement” of the filler tube, Titan truck owners and lessees allegedly overpaid for their trucks, had to make repeated visits to dealerships, had to pay for damage to the fuel systems, and now the trucks allegedly have decreased values.”

Additionally, the plaintiff says Nissan has refused to recall the Titan trucks to prevent customers from making mistakes when adding diesel exhaust fluid.

And the automaker has also refused to recall the trucks to repair the “exhaust and/or HVAC systems which allow exhaust fumes to enter and accumulate in the passenger cabin,” according to the firm behind the class-action lawsuit.

The bottom line on Nissan Titan diesel truck issue

Diesel exhaust fluid (DEF) is always a complicated part of any diesel vehicle. Other automakers have had issues related to DEF, but this one with Nissan seems to have more legs to it.

It seemed that the Cummins name and reputation would also boost the Titan’s reputation, but  the pairing went poorly and didn’t have the end result Nissan would have wanted. In fact, the automaker is no longer going to offer the Titan for sale in Canada, which has us wondering if its days are numbered in the U.S. as well.

To see what’s new for the 2022 Titan, check out our story here.

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Jimmy Dinsmore

Jimmy is News Editor for PickupTruckTalk with an expertise in new vehicles. He is also a Ford Mustang historian having authored the book Mustang by Design (available on Amazon). His second book, about the history of Ford's F-Series truck comes out next year.

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3 Comments

  1. William Hinds March 22, 2022

    I own this truck it’s a 2017 nissan titan turbo xd diesel 5.0 Cummins and I’ve been in the dealership from Florida to Massachusetts with the same fuel issues and problems and they have changed out turbo wire harness and Ll kinds of things and I’m in the dealership again today 3 22 2022 with another fuel problem. Bought the truck brand new it’s a lemon.

    Reply
  2. Audrey Saganna May 27, 2022

    I have a 2016 Nissan Titan Diesel XD with Cummins. It is always in the shop for DEF SYSTEM FAILURE. I am so pissed that the dealership did not mention this recall or lawsuit!! This truck is always in the shop.

    Reply
  3. James Pilkington June 11, 2022

    I bought the 2016 Titan diesel used in January and have noticed the exhaust fumes in passenger compartment. It actually almost made me pass out the first time. Ridiculous Nissan hasn’t recalled to fix this issue and ai wish I would have known about this before buying.

    Reply

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