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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
67,800 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 Altima exhaust system problems

exhaust system problem

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2004 Nissan Altima Owner Comments

problem #2

May 102008


  • 68,600 miles


This vehicle exhibits a common set of problems with the Nissan qr25de engine (actually the self-destruction of the pre-catalytic converter which in turn destroys the cylinders, causing overheating, head and manifold damage). The engine overheats and burns copious amounts of oil; sometimes fails to start; runs rough after starting; A/C cuts out due to high engine temp. After half a dozen service visits and replacement of many items, now the dealer recommends entire engine & catalytic converter replacement. We notice that this particular engine as installed in the Altima and on several other Nissan vehicles, is having this precatalytic converter disintegration-and-ingestion problem. Although no lives are being lost (of which we are aware) due to this well-known and well-documented Nissan manufacturing (or supplier) defect, much financial loss is being experienced by countless americans, most of whom very likely believe that their expensive Altima problems are unique to their own car and not a widespread design or manufacturing defect.

- Boerne, TX, USA

problem #1

Nov 012007

Altima 4-cyl

  • Automatic transmission
  • 67,000 miles
The contact owns a 2004 Nissan Altima. While driving 35 mph, the check engine light illuminated three different times. The vehicle was taken to the dealer and they stated that the crankshaft and camshaft sensors needed to be replaced. The dealer replaced the sensors. On March 14, 2008, the check engine soon light illuminated again. The dealer stated that there was exhaust failure. NHTSA campaign id number 06V242000 (engine and engine cooling) was referenced. The VIN, engine size, purchase date, and powertrain were unknown. The current and failure mileages were 67,000.

- Herndon, VA, USA

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