2010 Mazda CX-9: check engine light

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 Aug 13, 2020 · Engine · 127,422 miles · PA

Tl* the contact owns a 2010 mazda cx-9. The contact stated that while driving 25-30 MPH, the vehicle shutoff with the check engine warning light illuminated. The contact checked under the hood and noticed the coolant reservoir was empty. The contact pushed the vehicle to her residence. The contact stated that the next day she noticed coolant mixed in with the engine oil. The contact called jack giambalvo mazda (2425 industrial hwy, york, pa 17402, (717) 755-2944) and was informed that the failure may be the water pump however, the vehicle was not diagnosed nor repaired. The failure mileage was 127,422. The water pump was previously replaced at 61,000.

Filed Mar 26, 2019 · Engine · 90,000 miles · TX

Vehicle was in motion on a busy street when suddenly the check engine light came on the AC stopped coming out cold, and the car stopped accelerating would only go up to 20 MPH, the car started making rattling noises and I drove by to the nearest place to stop and water fell out of the front bottom right of the car.. The water pump messed up

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 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 Oct 5, 2016 · Engine, Steering · 75,000 miles · CO

After recently receiving our vehicle back from a mazda dealer for warranty repairs on the ptu and control arms, we were driving down the highway at 65 MPH - initially going up a hill in the mountains. The car would not shift gears (an automatic) and then would not accelerate past 30 MPH. No dummy lights lit whatsoever. We got to the top of the hill and having no place to pull off on the highway mountain shoulder, stayed in the lane of traffic with our hazards on. The down side of the hill was a 6% grade with a cliff on the other side of the guard rails. All of a sudden - the power steering went out and the car was hard to steer. There was still no place to pull over on the mountain highway, so we coasted. We then noticed the RPM's were at 0 and all the dummy lights that are on when the car ignition is in accessory were lit up. The car had turned off - while we were going 65 MPH on a 6% grade. No warning - no sounds, smoke, dummy lights - just off. Very amazingly dangerous. We were very lucky to not die a fiery death. My husband was able to keep calm and thankfully the brakes worked - we were able to stop towards the bottom of the hill. We had the car towed as it wouldn't start/stay running. The diagnosis by the dealer (not the dealer who did the prior warranty work) was a failed engine rod. Would have been nice to get a check engine light before having the car completely shut off. We drove the vehicle for less than 100 miles after receiving back from the warranty work and now this.