2007 Mazda CX-7 transmission problems

Filed Feb 12, 2016 · Airbags, Engine · MD

December 2015 I had my car towed to a mazda dealership (aaa service said to do so because of the noise and fear the vvt would break while in motion) to replace the vvt (timing chain) and valve cover gaskets - paying out of pocket. As of today, 2/12/16, the same noise, but louder, still occurs when I start the car and drive. The air bag light is on and was on when I took it in. No mention of was made. Also, when I received my receipt, they had the mileage wrong by 20,000 miles (potentially affecting carfax reports) , and indicated on the sheet that other areas such as lights were fine and they were not. They did mention that my turbo may need replacing soon (another consistent complaint). There was a class action suit filed in nj regarding this and it was thrown out. Why isn't the government doing something about all of these similar complaints? Where do I go since I just don't trust mazda dealerships?

Filed Jan 8, 2016 · Engine, Transmission · 77,000 miles · CO

While driving on colorado state highway 91 at approx 55 MPH, the vehicle suddenly died. The engine ceased working, all systems ceased immediately. I was unable even to safely pull the car onto the shoulder, the loss of power was so complete and so sudden. The vehicle was 200 miles from my home, and 250 miles from the closest dealer at that point, so I had it towed to the closest garage that would look at it, about 60 miles away. That garage evaluated the car and stated that the timing chain had broken and a new engine would be required, at approximately $6,000 to $8,000. I phoned the closest mazda dealer, in denver, and asked what they recommended. They also stated the engine would have to be replaced, at a cost of $8,000 to $9,000. I contacted the garage closest to my home and asked their advice. They stated they had experience replacing the timing chains and repairing engine damage in other vehicles and that they could diagnose whether that was an option. Their guess on cost was between $2,000 and $4,000 if the repair were possible and there was not too much damage to valves. Since the shop that is 25 miles from my home recommended repair at less than 1/2 the cost of the dealer 200 miles from my home, I elected to take it there. Upon research I found 1. The VIN # is one in a series with known timing chain failure, and that a heavier duty one had been issued to replace; 2. The dealer had replaced the vvt previously and should have replaced the timing chain at that time according to service bulletin 01-012/12, but did not replace the timing chain; 3. The failure happened 4 days after the expiration of the engine warranty and 7,000 miles over the 7yr/70,000 mi period; 4. Mazda would not honor the warranty since the repairs were done by an independent shop, not a dealer. Mazda knows that this VIN# is in a range of vehicles with this issue but will not fix.

Filed May 22, 2015 · Engine, Transmission · 124,000 miles · MO

I bought this car in february 2013 and two times since then I have had to replace the timing chain, thankfully my husband and I bought the extended warranty, but I have a feeling that it will do it again before I even pay my car off. Just a month ago I had to take my car in because my engine light came on, so I checked my engine oil and there was none on the dip stick. Called the place I just came from getting my oil changed the week before and found out that the turbo charger was malfunctioning and sucking all the oil out of the oil pan. The dealership says that it common for that make and model... My warranty covered the work but barely. I now have 4,000 miles left on my warranty.... What else could go wrong! I will never buy another mazda period!

Filed Sep 10, 2014 · Acceleration, Engine · 44,500 miles · PA

I purchased my 2007 mazda cx-7 from a dealership in greensburg, pa in february of 2014, it was purchased as a used car with only 36,500 miles on it. I had no problems with the car at first, then I noticed my gas mileage was getting worse, that is when on memorial day my check engine light would come on and then go off. I took it my mechanic because I was unable to get it in to the dealership for a week at some points and the light would have be off by then. Then when I was on my way home on the evening of 9/4/14 my car made a very weird sound any time I would try to push on the gas. I pulled the car off the road and there it sat until I could reach the service department on the following day. My husband took the car to the dealership and that's where it sat because he was informed that it was unsafe to drive? I went up after work only to have them tell me that they could not get the readings from the diagnostic test and that they would have to send it to an actual mazda dealership, where it has been for almost a week. I was informed yesterday that my turbo and other un-mentioned parts had broken. I then waited to hear back as to whether the warranty that I paid an additional $2,000 for at the time of purchase would cover it, it will not cover this and they stated that the turbo was not considered a part of the "powertrain" so they quoted me a price of upwards of $3300 to repair the vehicle that I have had for 7 months. I have started to do research into this vehicle and I have found out that this is actually quite a common problem with this make and model and that the manufacturer will not stand by the product fully knowing that this is a problem and the consumer is left holding quite a hefty bill. I implore you to research this and force their hand so that "[xxx]" doesn't keep getting stuck holding a huge bill for something this company just doesn't want to fix. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Jul 8, 2014 · Electrical, Engine · 104,232 miles · CA

Timing chain replacement resulted in a catastrophic failure of the high pressure fuel pump and its housing. Replacing the timing chain returned the engine to production line specs, that were too much for a worn fuel pump to handle. The increased pressure to the fuel pump shattered it into numerous pieces less than 100 miles after the timing chain was replaced. Said pieces became lodged inside the cam shaft and ended up bending all of the valves. The necessitated a complete valve job, removing and replacing the cylinder head, fuel pump, cam shaft and oil control calve. At worst, all timing chain replacements should require a fuel pump change in order to prevent the sequence of events that happened to my car and thousands of others.

Filed May 2, 2014 · Transmission · FL

I was driving my 2007 mazda cx-7 a few days ago on a major road and it suddenly started to make a loud noise as I accelerated and would not increase speed. This was very scary and dangerous experience for me because my car felt like it was about to cutoff on a major highway while cars were driving at high speeds. I took my car to the dealership the next day and I was told I needed to replace the turbocharger and vvt & timing chain for a total of $4,200. I begin to perform research online on these issues and found forums where hundreds of mazda owners have experienced this same issue with their vehicle. Unbeknownst to me, mazda sent a letter to owners with an extended warranty program for both of these issues. The warranty period is 70,000mi or 7 years. My vehicle is 75,000 and one mother past the 7 yr time period. Mazda is circumventing the recall process by offering an extended warranty for parts that they know are defective and the consumers who believed that they would honor their product is left with a huge bill to repair their vehicle when mazda is responsible party. Please see the link below to see numerous complaints by other mazda owners on this same issue. Https://www.facebook.com/mazda/posts/10153796263035363.

Filed Mar 2, 2014 · Engine, Transmission · 9,351 miles · CA

I purchased a brand new 2007 mazda cx-7 in april 2007, the vehicle started experiencing engine problems in september 2007, I was told it may have something to do with the vvt (variable valve timing) and timing chain. The vvt was replaced by the dealership a short time later; however, not the timing chain. After the vvt was replaced my vehicle starting to experience thick white smoke coming out of the tail pipes. My dealership technician advised this was due to a turbo issue with the engine. All of this occurred within the first couple years of my ownership. I have had the turbo repaired (out of pocket expense), as well as the vvt (2 times) and the timing chain it all seems to no avail. The car is revving very high on cold start ups and is now experiencing a code as of the last couple of days that is stating there is a decarbonization issue with the engine that is linked to the timing chain. Of course this is now the 5th time this vehicle engine will be opened up to diagnose one of the known issues that mazda north america is aware of. I have had this vehicle since 2007, and has just over 120,000 miles on it. I have maintained a very good service history on the vehicle taking it to "reliable" mazda dealerships in the area where I live. My main concern is mazda is doing nothing to rectify the issue and it's only a matter of time before someone is seriously hurt or even worse. The vehicle safety is impaired due to unstable engine performance. There is obvious technical issues with the engines for this mazda engine model.

Filed Jul 8, 2013 · Engine, Transmission · 98,000 miles · TX

Turning into a walmart parking lot my car shut down for no reason. Almost got hit by another car that was passing by since I was not able to turn. Turning into my apartment complex the car turned off again. Started to research issues with this car and I ran into many similar complaints. Car turned off another 4 times. Car shakes when I turn AC on.and when I place it on reverse. Also had the clicking noise but it seemed to go away. There seems to be some sensor issues. I took my cx7 to mazda so that they can see what is going on. They ran tests. Came back and said it would cost me about $3500. It was a list of things that could be wrong they said, they were not so sure what to say. Mechanic then stated that since he works at mazda he probably should not be telling me this but he said that he has seen that problem one too many times with this particular car. That yes mazda does know about it but they blame the owners. So I asked it I were to pay this would I get some warranty, he said no because the same problem will happen again. God forbid that my car turns off and I have and accident, since car gives no warning. I have 2 children that ride with me all the time. Mazda had some sort of recall on this car a few years ago. I purchased this car february of 2012. I know understand why this person took car to trade out. Maybe they got notice but did not care to take care of it, they traded the car in. I think they should look at those issues on all mazda cx7. Their main issues are the turbo, the AC, and the timing belt. If you read other complaints you will see that its the same issue which is due to the actual car not the owners, please help us affected by these vehicles get mazda to finally take responsibility for this. Make them recall these cars and get the problem fixed. To where we wont run into the same issues over and over again before someone looses a life.

Filed Mar 23, 2013 · Driver assistance, Engine · 55,882 miles · TN · fire

Started smelling strong burning rubber odor emanating through vents of car while in operation, exited highway upon seeing white smoke fuming from under hood. Loss control of steering and vehicle shut off and would not crank again. Mechanic determined AC compressor has seized and serpentine belt was snapped due to friction from pulleys. If I had stayed on freeway instead of exiting, with the lost of steering I surely would have posed a danger to myself as well as others on the road. This complaint is one of numerous thousands that have been filed on behalf of mazda and its cx-7 model. There should be a recall issued for the AC compressor before it causes serious injury and/or fatality.

Filed Jan 28, 2013 · Transmission · 112,050 miles · MS

The vehicle started tapping upon start up and seemed to have trouble accelerating. There was also a rattling noise when the accelerator was pressed. I called the mazda dealership and they stated that this is not their issue but they could look at my vehicle if I paid a $50.00 fee and what ever the issue, it would be my responsibility. There are countless issues with this vehicle ie. Varitable valve timing actuator, turbo failure, but nothing is being done by mazda to correct this problem ie. Recall. Please help us, the owners of this vehicle!! We cannot afford to pay out all because mazda will not admit their equipment is faulty. Thank you for your time.