Engine Rattling And Whining Sounds problems of the 2007 Mazda CX-7

I have a 2007 Mazda cx7, my vehicle has 71,000 miles I have noticed a rattling noise for the past few months. I visit three mechanics and all three mechanics are telling me it's the vvt timing chain. The cost the repair my vehicle is $3,000 to $4,000 dollars. I contact the Mazda dealer and because I have no warranty I have to pay out of pocket. So I begin to do my research online. I realized that there are hundreds of other Mazda cx7 owners that are having the same issues as I. What a coincidence Mazda has discontinued manufacturing the Mazda cx7. This is a manufacture issue and Mazda needs to own up for it. Hundreds of people are losing their vehicles due to this vvt timing chain issue and Mazda needs to make this a re-call. I know one thing I hope and pray nothing happens to me while driving my vehicle because I will not hesitate to file a lawsuit against the Mazda corp. I hope someone can help all of us who are current owners of Mazda cx7. I will use social media to spread awareness.

I drove 200 miles stopped the car to get something to eat, when I restarted it a loud whistling noise came from engine and wouldn't stop. Called roadside assistance and it was towed 2 days later because it happened on a Saturday night. It took 3days for it to be fixed and I'm not sure it is running properly. I also had the timing chain replaced at 60,000 miles. I will never buy another Mazda.

While driving on interstate highway, loud ticking and whirring sound came from engine. Black smoke came from rear tailpipes and white smoke from under the hood. Vehicle lost power and stopped.

My husband was driving home when he suddenly heard a loud whining noise then lost power. On the way to the dealer, he noticed it was smoking.

After six months, we began to have mechanical issues with the vehicle. A diesel-sounding chug coming from the engine seemed off for an unleaded four-cylinder SUV. The common issue seemed to be a part called a vvt actuator. No recalls or service advisories had been issued for engine parts at this time. However, in January 2012, an entire half-decade after the vehicle rolled off the assembly line, we received a ‘variable valve timing noise and timing chain noise warranty extension’ notice by mail from Mazda. A month or so after we received the notice, the vehicle began leaking oil. We took our vehicle into a roger beasley Mazda center and had it examined. The oil cooler on the vehicle was beginning to fail. We explained the notice that we received in the mail and they were already well aware of these issues. We were told the engine had engine sludge and with it being a second-owner vehicle, we did not have the documentation to prove that regular oil changes had been performed. Instead, all repairs and replacements would come from our own pockets. The result ended up being a need to replace the vvt actuator, the timing chain, the oil cooler, and replacing all of the gaskets. The technician showed us a side-by-side of the current timing chain and the new replacement – the used chain had literally stretched to be about half-an-inch longer than the replacement. We drove off the lot and hoped that the problems had been solved. Within two months of the repairs, the engine began making a high-pitched whining noise. My wife contacted the dealership that day while at work and they said to bring it in. On the way to the dealership, which is less than ten miles away, the vehicle died on the freeway. This ended up being the result of a blown turbocharger. Again, we had to take money from our nest egg to replace yet another part on this vehicle.

The contact owns a 2007 Mazda Cx-7. The contact stated that the engine was started and a rattling noise was heard from the engine. The vehicle was taken to the dealer where the dealer confirmed that the variable valve timing actuator failed and would need replacing. The manufacturer was not contacted and the vehicle was not repaired. The failure and current mileage was 69,000.

The contact owns a 2007 Mazda Cx-7. The contact stated that the engine would make a loud rattling noise after starting. The vehicle was not taken to a dealer. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 34,000 and the current mileage was 65,164.