2010 Mazda CX-9: engine failure

Filed Apr 9, 2022 · Electrical, Engine · TX

I had engine failure with a complete loss of power and a shuttering of the steering wheel while pulling into a parking lot and going less than 30 miles per hour. The temperature gauze went from cold to hot suddenly. There were no leaks of coolant or oil and no signs that the engine was out of water or that the water pump had "melted". On the final car repair trip we found out that the engine has an internal water pump that failed and resulted in oil & water getting into the engine. The engine light NEVER came on, I had complained about the tire pressure light blinking on and off in November 2021 and the deceleration issue I was having. The dealer did a coolant flush 11/2021. In early March 2022 the engine shut off as I was backing out of the driveway. I took it to a repair shop nearby they could not find anything wrong except that the car went into limp mode. They also did a coolant flush and radiator cap exchange since I forgot I had just done one on Nov. Less that a week later the engine failed again. We towed the car to the dealer for the third trip in less than four months. I am really disappointed that Mazda failed to recall the engine. I could have been seriously hurt if I had been traveling at high speeds. The CX9 had less than 135,000 miles at 12 years old.

Filed Oct 10, 2021 · Engine · MA

Our 2010 Mazda CX-9 stopped on the highway and had to be towed away. The dealer determined it was an engine failure due to a faulty water pump. It had leaked into the engine, causing permanent damage. No warning lights. The car just stopped. Two dealerships did not want to repair. There is a class action lawsuit. https://www.ktmc.com/mazda-water-pump-engine-failure There should be a recall. We need a refund for the repair we had done, totaling more than $7000. Please look into this safety issue. Mazda Corporate has our complaint on file. We are expecting a refund.

Filed Jan 18, 2019 · Engine · 110,000 miles · NV

On jan 12, 2019 we were driving home and without warning the temperature gauge spiked and the check engine light came on. The engine stopped and I was able to get the vehicle off the road. I looked to see the coolant reservoir was empty. I was able to refill it, thinking possibly there was a leak. It got us home safely. The next day, enroute to the radiator shop; the same thing happened. After a tow home, then a tow to the radiator shop and eventually a tow home, it was diagnosed as a water pump failure and now a new engine is the answer for the repair. There was absolutly no warning to this happening and the water pump is internal. I understand that the pump can/will wear out. I get it. Where it's located is a joke and I've read it's at least a $1500 - $2000 fix, just for the pump replacement. The main issue is the no warning whatsoever!

Filed Jul 22, 2018 · Engine · 108,000 miles · MA

Car was always serviced regularly. One day I was about to get on a busy highway into boston just before rush hour, when my car suddenly made a loud knocking noise in the engine. I immediately pulled over and then the car shut off. No lights ever came on beforehand and no leaking of fluids ever happened before incident. Had it towed to mazda dealer, who at first told me they wouldn't be able to even look at it for 6 days. Friend worked there and got mechanics to look at it right away. They said the water pump was gone and it would cost $3500 to fix it. The worst part of it was, that according to the dealership, they know that there is a flaw with where the water pump is located in the engine, and that because of this the engine was most likely gone as well. In their words, they have replaced many water pumps in these same situations over the years, and only one car didn't need a new engine. They recommended fixing the water pump, then putting in a new engine--$10,000 worth of work. We bought this car certified pre-owned from a dealership. It only had 108,000 miles on it and the extended warranty had just ended 8 months before. I have numerous other cars in my lifetime and never have I had to replace an entire engine, just because the water pump was gone! This car should have been worth about $9k-$11k for resale, and instead mazda wanted to give us $2k towards a down payment for leasing another of their cars. They gave us a rate that they claimed was a special one, however, I found out I could get an even better one online myself! When we called them on this and said we were tired of dealing with this, they told us they wouldn't talk with us anymore. Very disappointing to a family that carefully watches its money and budgets for emergencies, but weren't prepared to need an entirely new car before the other was even paid for! So unfair!

Filed Jul 18, 2018 · Engine · 10 miles · PA

While traveling 65mph on highway with family the vehicle shut down, engine light appeared and we nearly were struck by another vehicle when pulling over. Cx-9 was towed 75 miles to mechanic who informed us coolant entered the engine from failed water pump and engine needs replacement ($4000). Mazda service manager confirmed this is not uncommon and confirmed engine will need to be replaced. When researching cx-9 water pump failure online I found many disturbing testimonials of other cx-9 owners with similar experiences. There were no warning signs of water pump failure. Mazda needs to warn cx-9 owners with tsb or recall the water pump. The water pump is not buried inside the engine and cannot be visually inspected. Having a vehicle shut off abruptly when traveling at high speeds is a serious risk for both driver, vehicle occupants and surrounding motorists. I hope nstsa takes this complaint seriously and takes action before a serious or fatal injury occurs.

Filed Jun 7, 2013 · Transmission · 26,000 miles · OH · fire

Tl* the contact owns a 2010 mazda cx9. The contact stated that the vehicle exhibited an overpowering burning odor from the vents. In addition, a loud knocking sound came from under the hood. The contact took the vehicle to the dealer and was told that the transfer case needed to be replaced. The dealer test drove the vehicle and the engine seized. The vehicle had not been repaired. The failure mileage and current mileages were 26,900.

Filed Dec 2, 2012 · Engine · 38,409 miles · TX

Ticking noise was heard as I accelerated the vehicle and as left turns where made. The ticking noise was louder when the engine was cold. Mazda recommended to replace engine immediately without further inspection. When I asked what was wrong with the vehicle mazda said sludge was found on the dipstick. They blamed me the consumer and mazda would not honor my extended warranty which I purchased though them at the time of my initial purchased of the vehicle.