NHTSA — Engine And Engine Cooling: Exhaust System: Emission Control: Catalytic Convertor Problems


really awful
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
34,000 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 Mazda RX-8 exhaust system problems

exhaust system problem

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2004 Mazda RX-8 Owner Comments

problem #3

Nov 012012


  • miles


2004 Mazda RX8. Consumer writes in regards to several defects in the vehicle. The consumer stated about a year after having the vehicle, the rear tail lights started filling up with water. Also, the vehicle stopped running with no warning. The consumer was informed the vehicle needed a catalytic converter. When the consumer took the vehicle to the dealer, he was informed the vehicle needed two oxygen sensors. After the oxygen sensors were replaced, the stalling continued. The consumer had the vehicle towed the dealer, where he was informed the vehicle needed a new engine.

- San Diego, CA, USA

problem #2

Oct 182009


  • 101,000 miles
The contact owns a 2004 Mazda Rx-8. he stated the vehicle hesitated to start and that while driving it failed to operate at minimal speed. He also stated the vehicle would not accelerate properly. The check engine warning light illuminated and he noticed smoke coming from under the hood and the middle interior console. An independent mechanic stated that the catalytic converter needed to be replaced. The manufacturer stated that there was a previous campaign pertaining to the same failures; however, the repairs were made with the original owner. The contact is responsible for paying the repair cost. The contact stated the part was reprogrammed but not replaced as relayed to him by the manufacturer. No repairs had been made. The failure and current mileages were under 101,000.

- South Gate, CA, USA

problem #1

May 062004


  • Manual transmission
  • 1,000 miles
Purchased RX8 04/28/04, has had check engine light on nearly whole time of ownership, after 3 trips to the dealer at 50 miles one way, were finally told that the catalytic converter was bad. Had to special order so have to take the car back for the 4th time to get fixed. I don't see how a catalytic converter could be bad on a brand new car.

- Cable, OH, USA

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