The contact owns a 2004 Nissan Titan. The contact stated that the vehicle was driving roughly and burned an extreme amount of fuel. In addition, the check engine indicator illuminated. The vehicle was taken to an independent mechanic who stated that the exhaust manifold was cracked. The vehicle was taken to royal Nissan (9325 airline hwy, baton rouge, la 70815, (225) 924-0400), but was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was 230,000. The VIN was not available.

- Baton Rouge, LA, USA

The contact owns a 2004 Nissan Titan. While driving various speeds, the contact heard a loud abnormal noise under the hood. There were no warning indicators illuminated. Matt bowers Nissan eastern shore (29788 frederick blvd, daphne, al 36526, (251) 626-5558) diagnosed that the exhaust manifold was cracked and needed to be repaired. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 160,000.

- Spanish Fort, AL, USA

The contact owns a 2004 Nissan Titan. While driving various speeds, a loud noise could be heard coming from the front of the vehicle. Also, the vehicle was sluggish when the accelerator pedal was depressed. There were no warning indicators illuminated. The dealer diagnosed that the exhaust manifold was cracked and needed replacement. The vehicle was not repaired. The manufacturer was not made aware of the issue. The VIN was unknown. The failure mileage was approximately 75,000.

- Imperial Beach, CA, USA

The contact owns a 2004 Nissan Titan. While driving at various speeds, an abnormal noise was present and no warning lights were illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the manifold failed and needed to be replaced. The vehicle was repaired, but the failure recurred. The manufacturer was not notified of the failure. The contact stated that he was instructed to replace the manifold every five years. The failure mileage was 40,000.

- Seviervill, TN, USA

The contact owns a 2004 Nissan Titan. While in park and attempting to start the vehicle, the contact noticed that the manifold was fractured and leaking. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 80,000. The VIN was unavailable.

- Micanopy, FL, USA

The contact owns a 2004 Nissan Titan. The contact stated that there was a leak in the exhaust manifold. The vehicle was taken to a dealer, where it was diagnosed that the exhaust manifold was cracked and needed to be replaced. The vehicle was not repaired. The contact was notified that there was a manufacturer service campaign related to this issue, however, the vehicle did not meet the specification. The manufacturer was notified of the failure. The failure mileage was 76,000.

- Omaha, NE, USA

The contact owns a 2004 Nissan Titan. While driving approximately 45 mph, the check engine warning light illuminated. The vehicle was taken to a dealer where it was diagnosed that the exhaust manifold needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 87,000.

- Los Angeles, CA, USA

The contact owns a 2004 Nissan Titan. The contact discovered that there was a crack in the manifold. The vehicle was taken to the dealer. The technician diagnosed that the manifold needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The VIN was unavailable. The approximate failure mileage was 70,000.

- Apex, NC, USA

The contact owns a 2004 Nissan Titan. The contact stated that the exhaust manifold prematurely cracked and fractured on the driver and passenger sides of the vehicle. The vehicle was taken to an independent mechanic, who replaced the exhaust manifolds for the driver and passenger sides. The manufacturer was notified of the failure. The approximate failure mileage was 105,000.

- Winston Salem, NC, USA

The contact owns a 2004 Nissan Titan. The contact stated that while driving at various speeds, there was heavy exhaust fumes coming from the driver side of the vehicle and entering the cab of the vehicle. The failure recurred numerous times. The vehicle was taken to a dealer where it was diagnosed that the exhaust manifold was cracked and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 83,000. Updated 5/4/15

- Mosinee, WI, USA

The contact owns a 2004 Nissan Titan. The contact stated that while driving approximately 30 mph, the rear end seized causing the vehicle to come to a complete halt before stalling. After inspecting the vehicle, the contact stated that there was two cracked manifolds. The vehicle failed to restart. The vehicle was towed to an independent mechanic. The technician verified the failure. The vehicle was repaired and the manufacturer was notified. The approximate failure mileage was 65,000.

- Lindale, TX, USA

The contact owns a 2004 Nissan Titan. While the vehicle was at the dealer for an unrelated issue, the mechanic noticed that the driver and passenger side exhaust manifold was severely cracked. The vehicle was not repaired and the manufacturer was not notified. The VIN was unavailable. The approximate failure mileage was 90,000.

- Tyler, TX, USA

The contact owns a 2004 Nissan Titan. The contact stated that while driving approximately 15 mph, a noise emitted from outside of the vehicle continuously. The vehicle was taken to a dealer where it was diagnosed that the failure was due to a crack in the manifold gasket. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 69,000.

- Crewe , VA, USA

The contact owns a 2004 Nissan Titan. The contact stated that there was a leak in the exhaust system. The vehicle was taken to the dealer for inspection where they stated that the exhaust manifolds needed to be replaced. The vehicle was repaired but the failure recurred. The contact stated that he was concerned about breathing in carbon monoxide. The manufacturer was notified of the failure. The failure mileage was 30,000. Updated 8/21/13 the consumer stated the vehicle had multiple exhaust leaks that were caused by faulty exhaust manifolds from Nissan. The dealer at the time, replaced the exhaust manifolds. They used the same manifold design and this was all done under warranty. Around April 2013, the consumer began hearing the same exhaust noise from before. The consumer contacted Nissan about the problem, and they informed him the vehicle was out of warranty, but to take the vehicle to the dealer. They confirmed that both manifolds were cracked and should be replaced, with a modified design manifold.

- Gardnerville, NV, USA

The contact owns a 2004 Nissan Titan. The contact stated that the driver's and passenger's side exhaust manifold was cracked. The vehicle was not repaired. The manufacturer was contacted. The failure mileage was 125,000. Updated 5/9/13 updated 05/24/2013

- Bay St. Louis, MS, USA

The contact owns a 2004 Nissan Titan. The contact stated that he smelled a foul odor inside the cabin and would hear an abnormal noise when driving at various speeds. The vehicle was taken to the dealer for inspection where they advised that the exhaust manifolds were cracked and leaking. The vehicle was not repaired. The manufacturer was notified and provided no assistance. The failure mileage was 120,000......updated 01/14/13 the consumer stated the dealer advised that both exhaust manifolds also contain one catalyic converter per side. Updated 01/17/2013

- Cooke Ville, TN, USA

The contact owns a 2004 Nissan Titan. The contact stated there was a leak in the exhaust manifold. The dealer and manufacturer were notified, but denied any assistance with repairing the defect. The vehicle was not repaired. The failure mileage was 82,000 and the current mileage was 82,500. The VIN was unavailable.

- Central Point, OR, USA

The contact owns a 2004 Nissan Titan. The contact stated that there was a crack in the exhaust manifold and the vehicle would make a popping sound when the engine was on. The exhaust was also leaking. The dealer and manufacturer were not made aware of the failure. The vehicle was not repaired. The failure mileage was 200,000 and the current mileage was 240,000.

- Baton Rouge, LA, USA

The contact owns a 2004 Nissan Titan. The contact smelled a strong odor of exhaust fumes in the vehicle immediately after he started the vehicle. An authorized dealer stated that there was a leakage in both exhaust manifolds. The vehicle has not been repaired. The contact had concerns of the safety risk involved. The failure mileage was 75,000 and the current mileage was 104,500. Updated12/11/09 updated 12/14/09.

- Westminster, CO, USA

The contact owns a 2004 Nissan Titan. While driving approximately 5 mph on normal road conditions, the exhaust tail pipe was damaged due to an unknown obstacle on the road surface. The vehicle resumed normal operation. In addition, whenever the driver's side door was opened, the parking light activated without assistance and the driver's side turn signal was nonfunctional. The vehicle was taken to an authorized dealer for inspection and they stated that the tail pipe disengagement contributed to the melting of the wiring harness. The vehicle is operable and has not been repaired. The manufacturer did not assist. The failure and current mileages were 65,000.

- Pikesville, MD, USA