Manifold/header/muffler/tail Pipe problems of the 2004 Nissan Armada

The vehicle will start having erratic rpms, hesitation to accelerate, engine rpms will not go above 2000-2500 or below 1000-300 without severe hesitation, then sometimes it will just completely shut down everything no matter if stopped at a light or driving highway speeds. Total loss of vehicle control happens. . . No brakes, power steering, no acceleration. Every light turns on on dash and if your driving at the time you better hope that you can quickly throw it in neutral, crank the engine at least 2-4 times before it'll start up, then kick it back in drive to gain control of the vehicle again so you can pull over somewhere safe before you get into a serious wreck. Taking it to Nissan was pointless since after you get the Armada restarted, it doesn't retain any codes that the dealership can use to diagnose the problem nor can the mechanic replicate the issue on test drives. At which point I look like I'm the crazy one, then they send me off on my way with no answers. The only other problem that the Armada had long before this problem, during it, and currently is a cracked exhaust manifold which, too, is apparently a very common issue that plagues other Armadas which Nissan refused to acknowledge as a very common problem and issue a recall. This issue is hard to support with pics or documents since it almost always occurs while the vehicle is in motion so you're too occupied trying not to kill yourself or others on the road and when you do go to Nissan there no codes to pull since I guess the vehicle erases it after the complete loss of power. Feels like I'm chasing my tail. . .

The contact owns a 2004 Nissan Armada. The contact stated that the check engine warning indicator illuminated after the vehicle was started. The vehicle was taken to an independent mechanic where it was diagnosed that there was a leak in the exhaust manifold, but a remedy was not provided. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 154,000.

Cracked exhaust manifold identified. Dealer took 2 months after requesting a trip to the dealership (200 miles rt) to deny any responsibility because vehicle is over 8 years new. Been cracked for years and they knew its age before requesting an inspection. We were told by dealership to be wary of exhaust leaking into the cabin.

10/28/09 right manifold and catalytic converter cracked between 3rd and 4th runners at 56k, 9/28/10 left side cracked at 67k. Both replace under warranty. 03/16, 135k kept complaining of exhaust in cab and being light headed. Brought to mechanic, right side is cracked again! I care for and transport our 2 year old granddaughter while our son is in the military and can't believe this isn't considered a manufacturer defect due to the safety issue. Have always had Nissan, love to get another one but not if Nissan doesn't back their product.

My problem started around 12/5/08 when my truck died unexpectedly. It restarted then later more of the same on the same voyage. Local Nissan was contacted that day and an appointment was set for 12/15/08. At that appointment it was determined that it was caused by the vehicle security function and was reset and key was reprogrammed. They had noted that the exhaust manifolds had failed and needed replacement. The mileage was 81,470, 1470 miles over the federal warranty. My mileage was arguably under the 80,000 warranty limit when the appointment was made a week prior. Two weeks later, the same symptoms occurred. This time it is added with power loss of mass proportion on and off again. Again back to Nissan were they are pointing at the manifolds. Other customers with the same exact symptoms have had the ipdm, bcm, ecm, manifolds, and the key reprogrammed and the dealerships still cant find there problem. The service department acknowledges my concern that this isn?t the part causing the intermittent issues. Nissan realized the problem with its manifolds and corrected by making them ?beefer? and adding a support brace in later production runs. I have tried to resolve the problem through Nissans consumer services, but was denied assistance (case #6392768). The internet is flooded with Nissan truck customers whose manifolds have failed in the same exact places on the part during the production run date. Nissan has even warranted this part to other customers after the expiration of the warranty but why not me? there suggesting ?starting? with the manifolds @ $2400 estimate I can?t afford, and if that doesn?t fix the problem im in the same boat as the other? throw parts you cant afford at it? crowd. I bought there flagship vehicle, expecting utmost service unlike there counterparts. Im ready to discourage anyone I cross from the Nissan product line, my lawyer has already been contacted, and if this isn't resolved swiftly being without a veh.

The contact owns a 2004 Nissan Armada. While driving 60 mph, a warning indicator illuminated on the instrument panel. The vehicle has been to the dealer approximately three times for repair. The first time it was taken to have the brakes repaired for making grinding noises. The contact stated that she was using the wrong brakes. When the accelerator pedal is depressed, the pressure goes down and the vehicle decelerates. The contact would have to bring the vehicle to the dealer in order to determine the cause of the failure. In addition, there is a clicking noise coming from the transmission. The dealer cannot locate the cause of the failures. The VIN was unknown. The failure mileage was 30,000 and current mileage was 84,000. Updated 05/08/09. The right side exhaust manifold was replaced and the engine light had illuminated. Updated 05/11/09.

Tl-the contact owns a 2004 Nissan Armada. The contact stated that while driving at unknown speeds, the vehicle was making an abnormal sound as exhaust fumes emitted into the cabin. The vehicle was taken to the dealer. The technician diagnosed that the right and left exhaust manifold were defective and needed to be replaced. The vehicle was repaired. However, the failure recurred. The vehicle was taken back to the dealer, where it was repaired under an unknown manufacturer satisfaction campaign. Six years later, the failure recurred a third time. The manufacturer was made aware of the failure and refused to provide any additional assistance. The vehicle was not repaired. The failure mileage was 70,000. Pm.

The vehicle's home-link system failed. The consumer stated that the memory seats for the driver does not work. A vibrating noise was heard from the heat shield from the exhaust manifold. Vibrating noise heard from the interior courtesy light lens. The liner on the roof passenger liner is separating. Tire pressure sensor malfunctioned. Rotors warped on the front brakes as a result of inadequate size to the vehicle and inadequate venting which resulted in overheating. The consumer can not control the vehicle when braking from high speeds. The consumer heard a booming noise from the passenger compartment. The consumer stated that there is a problem with the radio reception. Cracks developing in the engine compartment heat shield. Headphones for the dvd system where not provided.

I am writing as a follow up to a news article out today that talks about how cracks in Ford exhaust manifolds are making vehicle owners/drivers/passengers sick through poisoning gases entering the cabin: https://www. Bloomberg. Com/graphics/2019-Ford-explorer-owners-say-suvs-making-them-sick/ this is not the only vehicle with this very serious problem. There are very serious problems with the Nissan Armada/titan exhaust manifolds cracking and emitting toxic gases, from 2004 on up. These vehicles, equipped with a 5. 4l engine, are highly susceptible to exhaust manifolds cracking and exhausting gas. This exhaust gas can easily make it's way into the vehicle passenger compartment, and cause sickness, dizziness, nausea, or possibly even death from co2 poisoning. The problem so bad on these vehicles, that aftermarket companies have for many years now started making exhaust manifolds that have reinforcements welded onto the areas of the stock manifold that regularly incur these cracks. The job is extensive, however, and many vehicle owners cannot afford these repairs. Many vehicle owners likely don't know what is making them sick. Here are some videos/forums that explain the much needed recall: https://www. Youtube. Com/watch?v=1v7f2sx6b64 https://www. Titantalk. Com/forums/titan-problems-dealer-service/130198-exhaust-manifold-recall. Html https://www. Clubarmada. Com/forums/8-engine-drivetrain/22309-cracked-exhaust-manifold. Html https://www. Carcomplaints. Com/Nissan/titan/2004/exhaust_system/exhaust_manifolds_cracked. Shtml https://www. Justanswer. Com/Nissan/5j40c-Nissan-datsun-armada-se-2006-Nissan-armada-just. Html https://www. Clubtitan. Org/forums/13-general-discussion/63695-exhaust-manifold-recall-3. Html https://repairpal. . Read more...