general problems of the 2007 Mazda CX-7 - part 2

As the proud owner of a new Mazda cx7, I felt confident after the first year of driving this SUV that it would carry me at least 10yrs. Until I begin to notice acceleration problems and noticing puffs of white smoke expelled from the exhaust pipe when it finally realized I was trying to increase speed. Took SUV to a Mazda dealer and was informed nothing was wrong with it. Fine, then began to hear like a rattling noise during acceleration (sounded like a rock in a tin can) sound then goes away after a few moments. Took to dealer again was told no problem. Well, on my way to work at 70 mph on busy interstate, I lose acceleration. Cost safely to the side of the road without being ran over by 18 wheeler,, had vehicle towed to Mazda dealer. I was then informed the timing chain broke, yes at 70,000 miles. Only then to be informed later that due to timing breaking my engine was ruined. I was then devastated, even more so after I was told it would 8000 for a new engine plus 2000 for labor. I had no other option but to park the vehicle and attempted to save money to have it fixed. Well that was 2 yrs ago and its still parked, and 2 yrs now without a vehicle. I had routine documented oil changes at Mazda dealers only, I took very good care of this truck. After searching the internet, I am reading the same incidents from thousands of people concerning the exact same issue. Mazda has finally states that there is a problem with the timing chains and has issued an extended warranty on it. But from reading reports, Mazda is giving people a hard time. Mazda cx7 are dangerous vehicles, someone could have been killed due to this poorly made SUV. I am reporting this because it really needs to be looked into before someone is killed to many people on the internet complaining about this failure. Please investigate this vehicle< we cant all be wrong!!!!!!!!!!!!!!!!!!!!!!!.

Timing valve replaced at 34,951 miles, then engine replaced at 41,060 miles on July 24, 2008.

I have a 2007 Mazda Cx-7. It is a very beautiful car but also has tons of problems. At 15000 miles it was leaking oil and they replace the engine gaskets. Then later was also leaking oil. Was told by the dealer that it was not. Took it to someone else who said it was leaking from the timing chain. Mazda resealed it. Since then my car doesn't shift properly going up and down hills. My air conditioner is hot and makes a funny sound. My car has loss of power and sound like a diesel. Overall I think that Mazda needs to step up and take care of the problems or they will not get many returning customers! something needs to be done! it was a 35000 dollar car!.

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 avial. 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.