Catalytic Convertor Problems of Mazda MPV

2003 Mazda Mpv. Consumer writes in regards to unsatisfactory customer service from dealership and vehicle company. The consumer stated his vehicle did not pass a safety inspection, due to a faulty catalytic converter, despite spending over $3,000 to correct the problem.

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The contact owns 2001 Mazda Mpv. While driving approximately 65 mph, the contact noticed smoke or steam around the vehicle. The contact was able to exit the highway and contacted aaa to have the vehicle towed to the dealer. The contact did not know what caused the failure. The transmission and catalytic converter were replaced. The vehicle was repaired. The failure mileage was 112,954. Updated 03/08/11 updated 05/24/11.

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The contact owns a 2002 Mazda Mpv. As soon as the warranty expired, the contact experienced failures with her vehicle. The dealer stated that the vehicle had major engine failure. Since the summer of 2007, the entire vehicle vibrates when driving 40-50 mph and stalls when approaching a stop. The vehicle is able to be restarted. The dealer stated that cylinder three was misfiring and informed the contact that newer models have been upgraded. When the vehicle stalled, the check engine light illuminated, but there was no brake or steering failure. The contact also smelled rotten eggs in the passenger compartment. The transmission was repaired and the catalytic converter was replaced, in addition to other small failures. The vehicle began rusting within the first year of being purchased. The VIN, purchase date, engine size, number of cylinders, transmission type, powertrain, and fuel system were unknown. The current mileage was 67,000 and failure mileage was 7,000.

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Engine was running rough and misfired. One dealer said this was a transmission module. After keeping it for several days and said the sparks needed adjusting, waited on the transmission module because it was running fine. Then it stopped suddenly in snowy weather, towed, I was left stranded for 2 hours in cold weather, battery replaced, 2 months later it was running extremely rough and misfired. A new dealer said it was not the transmission module but the coils and all would need to be replaced for a $1,000. They said 3 were bad, but if they replaced those they would be back redoing the others with in a few weeks. Car had 56,000 miles ,but was past warranty date not warranty mileage. This seemed to be what was wrong all along. I understand the catalytic converter might go due to this problem. I have heard that coils should not have to be replaced at this point.

Had to replace two ignition coils within 100 miles of each other, and at least one of the coils has been causing problems for a year. Also, it led to a catalytic converter malfunction.

The contact owns a 2003 Mazda Mpv. The contact stated that the engine failed four times. The vehicle had to be towed each time. The dealer installed another engine in the vehicle. The contact stated that the check engine light continued to illuminate and the coil ignition had to be replaced twice. The dealer installed new spark plugs in the vehicle on March 13, 2007; however, they failed a year later and had to be replaced. The dealer also installed a wiring harness. The battery was dying, there was a coolant leak, and the radiator core, catalytic converter, manifold studs, and pcm all failed and needed to be replaced. The purchase date was unknown. The current mileage was approximately 48,000 and failure mileage was 36,000.

2000 Mpv catalytic converter needed to be replaced. The consumer stated while she was waiting for the parts for the catalytic converter to arrive at the dealer, she and her husband experienced sudden acceleration. The vehicle idled high and for several minutes the consumer was unable to slow the vehicle down, but it continued to idle over 4000 rpm. After many attempts to get the vehicle to slow down, the consumer was able to pull the vehicle over to the side of the road and shut it off. The dealer was unable to recreate or diagnose the problem. The dealer decided to lower the idle. The problem did recur for a second time.

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Carbon monoxide entering the passenger compartment. Horrific odors. Dealer states do not drive vehicle on short trips and refuses correction of identified issue.

I have had three issues with my minivan. I have had a rotten egg smell for the longest time and was told to change the type of gas I used. After further persistence with the dealer, I was told that they are having problems with the catalytic converters and they are now finally replacing them after 5 trips to the dealer complaining. Second, there was a computer sensor failure which caused the van to overheat. . . I had to be towed to the dealer and get a new sensor and temperature gauge. Third, I have been complaining about hesitation in the transmission on turns and when slowing down and then accelerating. This is still unresolved. I would also like to state that the stearing column gear shift is extremely annoying and I have on more than one occasion hit the vehicle out of gear.

Carbon monoxide was released into the passenger compartment due to catalytic converter malfunctioning. This part was replaced seven times. However the problem recurred.

While driving at any speed, the check engine light would come on and a strong sulfur odor would entered the vehicle. A mechanic diagnosed the problem as a bad catalytic converter.

2004 Mazda Mpv with only 400 miles on it is starting to develop a sulfur smell coming from tail pipe area. This has been a issue in the past with the Mpv. Is there a fix. I have not contacted dealer as of yet.

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Exhaust system: catalytic convertor vehicle emitting strong sulfur oder from catback system. This is not acceptable, especially at 20,000 miles. Dealership service dept. Noted this was a common complaint with this vechicle ( Mpv). Dealer said- "this problem seems to be common in new v6 and v8 engines. - something in the design of lower emmissions. Again, unresolved- this is not acceptable (for any vehicle).

Consumer states there is a sulfur smell in the cab of vehicle. Mechanic states that the way the catalytic converter is burning the gas is causing the smell. Mechanic is aware of problem. Please provide any further information. Ph.

The catalytic converter malfunctioned and as a result a foul odor seeped through the vents and inside the vehicle compartment. This problem has been occurring since the vehicle was purchased. The smell is very foul and has caused problems for the consumer's asthmatic child.

Purchased the car, drove it up a hill had a terrible egg smell seems to be every time I go up a hill. Took it back to the dealer they said it was the gas I was using. Took it to another garage and they say it the catalytic converter needs to be replaced. The dealer won't do anything the smell is very embarrassing. We bought this for a family car now no one wants to ride in it. Maybe that's why it's a 2001 and only has 12,000 miles on it.

We have had a terrible "rotten egg" smell coming from our exhaust since we have purchased the vehicle. We were told by the dealer that the van would be replaced without any inconvenience to us. The dealer later withdrew that offer because Mazda corporation felt this was an isolated incident. We were also informed by the dealer to try 3 tan fulls of the same gasoline and the smell would go away. They told us if this did not work to go to other gas stations and start this process all over again until we found a brand that would work. We have tried this and have no improvement in the smell. We were also told by the dealer that Ford motor company (who makes the engine) issued a statement to Mazda service centers that this smell will go away between 8,000 to 12,000 miles. I asked the dealer, Mazda corp. , and Ford motor CO. For a written copy of this statement, and no one could provide one for me. Have you had other complaints about this defect? I do not believe it is reasonable to expect a customer to put up with this smell for up to 12,000 miles. It is very embarrasing when people pull up next to you in traffic and hold their nose because of the terrible smell from our exhaust (this has actually happened. ) have their been any recalls issued to correct this defect? thank you.

Consumer complained about a catalytic converter problem. Catalytic converter was under warranty and was replaced twice within 1 year. Comsumer maintained that dealer was not doing what was needed to remedy the problem. Dealership asked consumer to return the rental car although the catalytic converter problem was not resolved.