Manifold/header/muffler/tail Pipe problems of the 2004 Nissan Titan - part 2

The contact owns a 2004 Nissan Titan. The contact stated that the check engine warning light illuminated. The contact could smell fumes inside vehicle. The vehicle was taken to a repair shop for service maintenance where it was inspected and determined that there was a crack on the exhaust manifold as well as a failure with the catalytic converter. The manufacturer was not made aware of the failure. The current mileage was 113,000. The failure mileage was 110,000.

The contact owns a 2004 Nissan Titan. The contact stated that exhaust fumes emitted into the vehicle. The vehicle was taken to the dealer, who diagnosed that the exhaust manifold was cracked and needed to be replaced. The vehicle was repaired, but the failure continued. The manufacturer was not made aware of the failure. The vehicle was not repaired a second time. The failure mileage was 79,000 and the current mileage was 84,972.

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. The VIN was unavailable.

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.

The contact owns a 2004 Nissan Titan. The contact stated that the engine exhaust manifold was cracked due to defective material, and caused fumes to enter the vehicle. The vehicle was not repaired. The failure mileage was 180,307 and the current mileage was 180,400.

Car into dealer for service. Found two cracked manifolds on both sides of the engine resulting in excessive noise and exhaust gases to be released into the cab. Both sides need full replacement at nearly $1,200 per side. This is ridiculous on a vehicle with only 70k miles on the clock.

The contact owns a 2004 Nissan Titan. The contact stated that exhaust fumes were emitted into the vehicle. The vehicle was taken to a dealer who diagnosed that the exhaust manifold was crack and it needed to be replaced. The manufacturer was not made aware of the failure. The VIN was not available. The vehicle was not repaired. The failure and current mileage was 60,000.

While traveling to go on a 13 hour drive, all of our engine lights came on and the truck became sluggish. We had truck towed and got a call from dealership saying what happen was muffler/exhaust unit fell off during travel and the unit remaining got so hot it burned out entire part of truck including, ecu, rear right harness, and 3 other things. Cost to fix over $3,000. After paying hefty bill shop manager said this was the 5th Titan in our small town he had same issue with and that he agrees this is the worst place for a unit on a truck and manufacturer should of put other location. I then filed a complaint with Nissan consumer affairs. They acted like they cared and then 3 weeks later they denied helping me at all saying it was out of warranty. I did research on line and lots of people are having same issue. This is a huge safety concern and I think needs to be recalled and I need to be reimbursed for my repairs. I find it odd that the exhaust manifold also cracked on the truck on the right and left side and Nissan covers that until 80,000 miles.

The contact owns a 2004 Nissan Titan. The contact stated that he could smell fuel fumes inside of the cabin. The vehicle was taken to a repair shop and was inspected. The mechanic found a defect on the exhaust pipe and both manifolds had cracks in them. In order to repair vehicle, the exhaust manifold and catalyst needed to be replaced. The vehicle was not repaired. The failure mileage was 115,000 and the current mileage was 124,000.

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.

The contact owns a 2004 Nissan Titan. The contact stated the exhaust manifold was leaking. The contact took the vehicle to a local dealer who stated the exhaust manifold leak was a common problem with his year, make, and model. The dealer stated there were no recalls related to the exhaust manifold. The contact stated if the exhaust manifold had a larger crack in the exhaust it could have caused a fire. The failure mileage was 108,000.

The contact owns a 2004 Nissan Titan. The contact stated when driving at various speeds he noticed that the vehicle would drive sluggishly and it was losing gas mileage. The vehicle was taken to an independent mechanic who advised him that his manifold fractured and needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and offered no assistance. The failure mileage was approximately 118,000.

2004 Nissan Titan VIN 1n6aa07bx4n563653 at 90k miles the exhaust manifolds cracked on my 2004 Nissan Titan. Nissan covers this under warranty until 80k miles for the exhaust system. The truck has had no modification and will not pass state emissions and gets horrible gas mileage due to this. Now at 104 k I have visited multiple dealers and they agree this is common issue with the Titan's and the crack will make a 5 year old truck not pass state emissions. To replace the exhaust manifold with stock parts is $1200; which frustrates me since this is a faulty design which causes the manifolds to move differently then the engine mounts allow the engine to.

Ticking noise discovered when starting the truck. Sounds seems to come from lower engine compartment or from front wheel-wells. Suspected a leaking exhaust pipe. Took truck to Nissan dealership and was informed the exhaust manifolds (left and right) were both cracked. Estimated cost was $2100. Advised by Nissan technician to "just leave it alone" as the only result of this problem was the ticking noise and a little worse mileage than usual. Over the last year, several instances of engine fumes causing passengers to roll windows down. Suspect the fumes are coming from the manifolds since no other exhaust leaks have been found.

Nissan Titan exhaust manifold cracks, causing exhaust fumes to enter vehicle.

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.

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.

Don't know if it's been reported, but alot of people are having issues with the Nissan Titans (many years) with the exhaust manifolds cracking. I have a 2004 and both of them have been cracked for almost 4 years now. I contacted Nissan, they suggested to contact Nissan corporate, and pretty much told me I was out of luck. The manifolds are over $850 each, and both of mine are severely cracked, causing engine, emission, and safety/health problems. I have had to replace many O2 sensors, cat's, and mufflers, due to burning up, and have to drive with all my windows down and short trips due to the exhaust filling the cab of the truck. Something needs to be done, as this is not only an issue, but a major flaw in the design of the truck. I have had checked out at a local shop, and their exact words were "there is absolutely no flex in the exhaust, so when the engine shifts from driving and revving, the manifolds are the weakest point and therefore crack". Something seriously needs to be done or looked into. Many Nissan Titan forums hundreds of people are complaining about the same issue. Usually only one is cracked, but I have both cracked. If you need a vehicle to inspect, you can look at mine. I even had the exhaust upgraded to bigger exhaust in hopes of relieving some of the pressure, so it doesn't leak all out under the hood, and that has helped some, but this is seriously an issue with the design and useability of these Nissan Titan trucks. And, I don't know about alot of people, but I can't afford to spend over $1600 in just 2 parts, plus all the other required parts, when I can barely afford to pay the bank on the truck.

Only 65,000 miles on my truck and no modifications. Right rear seal leaking, pinion seal is shot and front left axle needs to be replaced. Nothing covered under warranty. I am looking at a $3,000 repair bill on a 4 year old truck that has never been off road and doesn't have high miles. My exhaust manifold also cracked at about 60000 miles. This was able to be replaced under warranty.

The contact owns a 2004 Nissan Titan. While the contact's spouse was driving approximately 55 mph, the vehicle would no longer accelerate. He pulled over to the side of the road and the vehicle was towed to a dealer. The dealer stated that the tail pipe clamp detached and burned through the electrical wires and shorted out the electrical system. There were no injuries. The current and failure mileages were 37,000. Updated 11/06/08 updated 11/07/08.

The contact owns a 2004 Nissan titian. The contact stated that the vehicle was taken for routine maintenance when the contact was advised that the exhaust manifold was cracked. The vehicle was not repaired and the manufacturer was notified of the failure. The approximate failure mileage was 6,000.

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.

Tl- the contact owned a 2004 Nissan Titan. The contact stated that while traveling 70 mph on a major highway, there was a sudden reduction of speed upon the service engine sensor illuminating and the vehicle went into safe mode. The vehicle was taken to an authorized dealer who indicated that it would take longer than two weeks to diagnose the vehicle and to drive the vehicle in safe mode. The vehicle was not repaired. The contact had to tow the vehicle to another autohrized dealer who diagnosed that the exhaust manifold cracked and the catalytic converter was on top of the exhaust manifold causing the engine to be damaged and destroyed. The vehicle was repaired by the authorized dealer who replaced the exhaust manifold, catalytic converter and the engine. The VIN was not available. The manufacturer was not notified of the failure. The approximate failure mileage was . Dyd.

2004 Nissan Titan exhaust manifold cracked this is a emission issue.

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.

The contact owns a 2004 Nissan Titan. The contact stated that there was a ticking noise from the header and engine area. The vehicle was taken to an authorized dealer several times while under warranty and the contact was told that there was nothing wrong. The contact stated that now the dealer was stating that the headers and manifold were defective. The failure caused the vehicle to lose oil pressure and the headers on both sides needed to be replaced. The failure mileage was 30,000 and the current mileage was 100,000.

The contact owns a 2004 Nissan Titan. The contact stated that exhaust fumes were entering the interior cabin. The vehicle was taken to the dealer, who stated that the manifold was cracked. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 60,000.

Failure of cracked manifold exhaust with built in catalytic converter. I have cracked 3 manifold exhaust due to the fact that Nissan did not install flex pipes in their exhaust system. It is happening on all the Titan trucks. . . Look at the forums and my dealer has confirmed it. Exhaust is leaking into the cab area. It cost over $900 to just repair the part. They will not fix it! it is leaking straight exhaust fumes.

The contact owns a 2004 Nissan Titan. The contact stated that when driving at various speeds he would hear a loud whining noise. The vehicle was taken to the dealer for diagnosis. The technician stated that the exhaust was leaking due to the manifold being fractured. The vehicle was repaired for the manifold approximately seven times in five years. The manufacturer was contacted and they offered no assistance. The failure mileage was approximately 47,314. The current mileage was approximately 166,000.

Exhaust manifold is cracked and leaks fumes into cab.

I have same problem as everyone else with cracked exhaust manifolds starting around 65000 miles. Expensive to replace so I have no choice but to listen to a horrible exhaust leaks. Next is the rear axle seals first around 65000. Replaced 2x. After talking to Nissan tech who is a friend apparently its a very common problem. The axle tubes tend to warp causing a leak all over tires n brakes and eventual failure of gears inrear pumpkin if not caught. Just waiting for it to happen again. Brakes have always been a problem. Every 7000 brakes n rotors r shot and need replacing. Pedal always has a mushy feel when u occasionally need to slam on the break. Goes all the way to the floor even when brakes r good.

1. Travel down dirt roads over a period of six months. 2. Tail pipe fell off (on this model 4x4 off road package the tail pipe isn't welded to the muffler) total vehicle failure of all electronic components as the wiring harness melts due to exhaust being vented directly on wiring harness also melts dust cover for shock and abs sensor to axle housing. 3. Replace tail pipe, shock, abs sensor, wiring harness and all electronic components.