Engine Exhaust System problems of the 2003 Nissan Pathfinder

18 problems related to engine exhaust system have been reported for the 2003 Nissan Pathfinder. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Nissan Pathfinder based on all problems reported for the 2003 Pathfinder.

1 Engine Exhaust System problem

Failure Date: 11/01/2009

I own a 2003 Nissan Pathfinder le. Took it to a Nissan dealer and they said the passenger side resonator was leaking out of the outboard seam. The driver side resonator was leaking out of both the outboard and inboard seam. The exhaust could be very easily felt when the engine was running and there is exhaust smell in the cabin. The muffler was freely swinging. I had to replace the muffler. The resonators should be replaced by Nissan as many people are having the same problem. I hope you can do something or that a class action lawsuit is filed.

2 Engine Exhaust System problem

Failure Date: 12/29/2008

2003 Nissan Pathfinder. Cracked resonators/catalytic converters under vehicle allowing exhaust gas to enter vehicle. This is a very common problem with 2002/2003 Pathfinder owners and Nissan refuses to take action to correct this dangerous issue. No payment assistance has been offered by Nissan to help with the cost of the necessary repairs.

3 Engine Exhaust System problem

Failure Date: 12/10/2008

1. ) there were no specific events that led to the failure of my vehicle part. 2. ) my 2003 Nissan Pathfinder with 50k miles on it has a cracked resonator pipe which are the front pipes that attach in to the catalytic converted. . Read more...

4 Engine Exhaust System problem

Failure Date: 11/26/2008

2003 Nissan Pathfinder catalytic converter failed at side seams and was patched once per Nissan official recommendation. Original patch has worn out and side seams are beginning to fail again. Nissan is refusing to cover the catalytic converter to 8 year/80000 mile warranty.

5 Engine Exhaust System problem

Failure Date: 11/01/2008

Faulty exhaust resonators from manufacturer resulting in serious exhaust emission leaks directly under cabin of vehicle in driver and front passenger positions.

6 Engine Exhaust System problem

Failure Date: 10/20/2008

I have a 2003 Nissan Pathfinder. It has a cracked catalytic converter. It has less than 45,000 miles . Nissan will not comply to the 8/80 law.

7 Engine Exhaust System problem

Failure Date: 10/09/2008

The contact owns a 2003 Nissan Pathfinder. The contact stated that the resignator, which quiets the engine and is located directly in front of the muffler, is coming apart. In addition, fumes were noticed coming out of the exhaust. The dealer stated that they have a replacement kit to repair the issue, but the contact does not want the kit. He would like the failure to be repaired instead. The VIN was unknown. The failure mileage was 73,000.

8 Engine Exhaust System problem

Failure Date: 10/08/2008

The car lost power and then there was high heat from under the car followed by a small explosion when two catalytic converts burst side seams and began to leak. Bennett Nissan in wilton connecticut refused to replace the catalytic converts on both sides of the exhaust system. They claim that these are resonators and not covered under the eight year or 80,000 warranty. They also claim that if there is no "check engine light" that they are not part of the epa system. They offer a "fix" that seals the defect of this equipment and charge about $250. Replacement with new parts costs about $1500. I think: 1) this causes a dangerous situation and is directly related to the epa system; 2) there is danger from fire or excessive exhaust fumes in the car. The dealer and Nissan are obviously working to concert to avoid the repair under warranty and pushing the expensive repair to the consumer after they have no they beyond the 8/80000 mile coverage. This is wrong. This issue is on a 2003 Pathfinder le that I have owned since it was new.

9 Engine Exhaust System problem

Failure Date: 08/01/2008

I have a 2003 Nissan Pathfinder with cracked exhaust pipes. These pipes are cracking on 02-04 Pathfinders, and this is a chronic problem. Nissan provides (for $200 per side) a patch that includes a bracket filled with foam and some hose clamps. This patch lasted about a week before the problem occurred again. Nissan will re-patch for another $400, or replace the parts (presumably with more defective parts) for upwards of $1500. . Read more...

10 Engine Exhaust System problem

Failure Date: 06/02/2008

2003 Nissan Pathfinder exhaust system disintegrated at connection point (vehicle has 85,000 mi. ). Have had the dealership advise and cost will be $1200. 00 to fix. Have searched on-line and found problem to be widespread with 2002-2003 Pathfinders.

11 Engine Exhaust System problem

Failure Date: 09/30/2007

September 2007- went to repair shop for oil change, was made aware of cracked catalytic converter November 2007- rear exhaust pipe fell off January 2008- went to muffler shop, was told that 2 catalytic converters and entire exhaust pipe need replacing. May 2008- went to Nissan dealer, was told that it is not my catalytic converters, but my "down pipes" that have severe cracks in them. Quoted over $600 for repair kit, as this is something that they claim to have seen often enough to create a patch kit for. Quoted $1300 for new parts. Severe exhaust in the vehicle passenger compartment, both with windows opened and closed. Vehicle only has 71,000 miles on it, and the catalytic converters, which 2 other repair shop have identified as the problem, are covered by warranty, but the down pipes, which only Nissan claims to be the problem, are not. This is now a very expensive safety issue, as the exhaust is unbearable.

12 Engine Exhaust System problem

Failure Date: 08/23/2007

My husband and I purchased a new 2003 Nissan Pathfinder se in July 03. In 2007, the "check engine light" came on. We took it to a dealer, who informed us that we needed to have the entire exhaust system replaced due to a crack in the pipe and the 02 sensor was making the light come on. They never informed us of a patch kit available. We did have the entire exhaust system replaced in 2008. We later came to find out this problem is occurring for many others with the same vehicle. We are doubly concerned about the affect that this has had on my 3 year old's asthma and respiratory issues (considering the emissions issues and what I am hearing from other's who's small children have similar issues and who also have this issue with their 03 Pathfinder). I would hope that a recall is required and that those of us affected will be duly compensated for Nissan's safety failure.

13 Engine Exhaust System problem

Failure Date: 07/22/2007

The contact owns a 2003 Nissan Pathfinder. The contact noticed an exhaust leak coming from the vehicle. She took the vehicle to the dealer and they stated that they would use a repair kit to remedy the failure. She was unsure if the vehicle would pass the safety inspection and stated that since there is an open TSB (NHTSA item number 10010378) for this failure, there should be a recall as well. The current and failure mileages were 31,472.

14 Engine Exhaust System problem

Failure Date: 11/23/2005

Maine vehicle safety inspection revealed crack along welded seam of exhaust resonator pipe assembly. Vehicle had approximately 37,400 miles just out of basic warranty. Dealer would not consider part failure under emissions warranty, but quoted repairs of nearly $200 or purchase of kit consisting of 4 metal bars, 4 band clamps and 1-2 oz of sealant for $70. Nissan has issued service bulletin rtb04-094 ? repair of exhaust leak/noise at front tube implying they have had an on-going problem in this area. Local dealer readily acknowledged multiple instances of this problem appearing locally.

15 Engine Exhaust System problem

Failure Date: 07/15/2005

About three weeks ago, the consumer noticed the exhaust tubes split. The consumer noticed this when he started the vehicle in the garage. There was noise coming from the exhaust tubes. The owner noticed the vehicle was leaking exhaust fumes. Then the vehicle was taken to the dealership and they repaired it. There were no warning lights on in the vehicle prior to this occurrence. The vehicle was regularly serviced. The owner has contacted the manufacturer, who stated they would call him back in 24 hours. The dealer did not replace the exhaust tubes, they just patched them. The consumer says there must be a defect where heat causes problems in the exhaust.

16 Engine Exhaust System problem

Failure Date: 05/13/2005

Exhaust tubes on 2003 Nissan Pathfinder cracked before reached the 24,000 warranty expiration. Nissan "patched" tubes rather than replaced them. The patch failed this year and I am fighting with them because they should have used new parts in the first place. I can not tell if this is endangering the environment, however, I know that many Pathfinder owners are experiencing early failure of the exhaust system and Nissan is not owning up to their design defect.

17 Engine Exhaust System problem

Failure Date: 05/01/2004

The contact owns a 2003 Nissan Pathfinder. The vehicle has an exhaust leak which was discovered because the contact became a victim of carbon monoxide poisoning. She took the vehicle ito dealer for an oil change and had them check the exhaust system. They told her that there was a leak. The dealership showed her the leak. It was about four inches long. The leak was discovered on the driver's side of the vehicle. There was a technical service bulletin ,NHTSA item 10010378/service bulletin 04092; date of bulletin 9/1/2004 for this problem, but she was never notified because it was not a recall. She purchased a carbon monoxide detector, and it was letting her know that there was carbon monoxide in the vehicle while she was on her way to the dealership. The dealership told her they corrected the exhaust problem free of charge. The dealership show the contact that there was a 2001 Nissan Pathfinder that was in for service for the same problem. This problem became more intense since April 2005. The service invoice from the dealership stated: concern when in neutral and cold there is a ticking noise in left side of the engine, and there is a carbon monoxide smell in the vehicle, carbon monoxide found leak at heater pipe. The contact stated she claimed symptoms of carbon monoxide but she could not smell it because carbon monoxide is odorless so that statement in the service invoice was incorrect.

18 Engine Exhaust System problem

Failure Date: 01/01/1901

2003 Nissan Pathfinder with exhaust leak. Consumer states that technician stated the problem was a cracked catalytic converter. Manufacturer stated the defected part was resonators not catalytic converters and was not covered under warranty.


Other Engine And Engine Cooling related problems of the 2003 Nissan Pathfinder


Safety Ratings of Pathfinder Cars
Fuel Economy of Pathfinder Vehicles
Pathfinder Service Bulletins
Pathfinder Safety Recalls
Pathfinder Defect Investigations