hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
79,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2004 Nissan Pathfinder engine problems

engine problem

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2004 Nissan Pathfinder Owner Comments

problem #1

Jun 062009


  • 79,000 miles


I am the owner of a 2004 Pathfinder with 79,000miles. I was driving on June 6th when my engine began to produce a loud knock. I immediately pulled over and called a tow truck. I had the vehicle towed home so I could investigate the noise. Upon removal of the upper intake manifold I found 1 of the 6 power valves had moved from its proper location, and was on top of another valve. The 2 screws meant to hold it in place were missing, and I found that 8 of the 10 remaining screws to be loose. I was able to find 1 screw that was sitting down inside the head, about to enter the cylinder. I then preceded to remove each screw, locked it, and reinstall it. Hoping this solved the problem, I reassembled the engine, and started it. The knock was still there. So this means that the screw I couldn't find made its way into the cylinder and caused unknown damage. A simple internet search will find numerous reports of this happening on Altima, Sentra, and Pathfinders because the screws were not properly locked at the factory, making this a manufacturers defect. Something that should have been dealt with by issuing a mandatory service, there by not wasting my time and money on something that takes less than an hour to remedy. My vehicle is currently undrivable for fear of further damage, as I await a response from Nissan North America on what action, if any, they will do to investigate.

- New Hartford, CT, USA

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