2014 Mazda CX-9: check engine light

Filed Jun 27, 2024 · Engine, Fuel system · CT

I purchased a 2014 Mazda CX-9 back in May of 2020 w/ roughly 60k on the dash. Literally 7 months later w/ about 72k on the dash, the day after Christmas I was driving to work (I worked in the next state over) on the highway my car just shut down. No warnings, no check engine lights NOTHING! It just completely shut off and would not turn on. Thankfully because of the holiday the highway was pretty empty and I was able to swing my car across the interstate so I wouldn’t get hit by oncoming traffic. After getting out and deciding to check my oil I noticed it looked milky. I had no idea what that meant so I had it towed to a Mazda dealership in the state I live in. It was going to cost me almost $8,000 to put in a new engine because the water pump that was placed inside of the engine failed, which in turn caused my engine to seize. The extended warranty I had on my vehicle was worthless so I ended up paying out of pocket. Thankfully Mazda worked with me and had me prove that I kept up maintenance on the truck so the price was chopped in half. This happened right at the beginning of Covid when the entire world was suffering financially. I still had to make my car payments on top of shelling out 4k on a truck I hadn’t even had for a year. This is a huge issue with a lot of people that own the same vehicle and is extremely dangerous! I could’ve killed someone or worse myself when my vehicle stalled out on the highway.

Filed Mar 12, 2024 · Engine, Fuel system · PA

The water pump failed causing water to mix with the oil and damage the head gasket. Estimates recommend replacing engine. The service engine light came on and we took it to our trusted mechanic right away. Got the estimates from two mechanics for this repair and then towed the car to Mazda dealer who confirmed the problem. We wrote to Mazda's corporate office and was told they would not fix it. My car has 68,000 miles and was regularly serviced. It is currently sitting dead in my garage. We bought this car in 2015 brand new from the Mazda dealer in Monroeville, PA. This is outrageous! I spoke with someone else who also owns a Mazda and the same thing happened to his car. From articles I have read and attached, this problem is occurring in many Mazdas. What needs to be in place for Mazda to take responsibility and fix this problem by recalling the affected vehicles?

Filed Nov 26, 2022 · Engine · TX

Sudden failure of water pump located inside the engine caused engine to shut down immediately while driving 70 mph on busy expressway. Extremely dangerous situation due to heavy traffic and high speeds traveled. Only by sheer luck were we able to coast across 4 lanes of traffic to an exit ramp and barely make it into a parking lot after crossing 2 more lanes on the frontage road. Very difficult to steer and brake due to no engine power. Repair cost was $4,433. Two subsequent follow up repairs for check engine light and oil control valve issues related to water pump failure were required and covered under initial repair warranty. Research on web indicates this is a common problem with this engine with many complaints occurring soon after 100k miles. In many cases customers reported having to replace the engine or sell the car for parts due to the high cost of repair. Locating the water pump inside the engine block was a terrible design fault and extreme safety hazard when it fails.

Filed Nov 3, 2021 · Engine · TX

I purchased a 2014 Mazda CX-9 on 12/14/2019. On Monday 10/18/2021 I was driving on the Hwy on the way home and my check engine light came. I had my mechanic check it out and he said the computer read a P0019 code. So on 10/20/2021, I took it to the dealer where I originally purchased it and this was the same code they found. At the local dealership, I was told that apparently, the water pump needed to be replaced due to water coolant in the oil pan. I had absolutely no warning. No leaking, no smell of coolant. This vehicle only has 88,000. Upon further research and to my surprise is that the water pump in the Duratec 37 engine and make and model has a design flaw with the water pump located in the engine with the timing chain. That is the number one problem that fails first due to the water pump gaskets wearing degrading without any warning pump has become damaged due to pump bearings too. I had my vehicle serviced with four oil changes over the past 28,000 miles since I purchased it. These late-model vehicles being built today I know do not burn that much oil nowadays. I also found out, the iVCT 3.7 Duratec is in the 2008-2015 Mazda CX-9 which I have the 2014 model. This 3.7 V6 uses a timing chain-driven water pump. I also found out this kind of water pump is prone to failing at the pump bearings which allows the timing center to move around. Once it’s bad enough coolant is dumped into the engine where it mixes with the oil dripping from the water pump into the oil pan. This is where the real problems begin. Coolant mixing with oil is not good. It can cause corrosion and lots of internal wear as the Duratec 3.7 engine oil is no longer able to properly lubricate moving parts and shut down the engine. Base on the number of oil changes I had during this time I'm sure it had nothing to do with the water pump failure issue. This is solely a Mazda manufacturing flaw with the design. At this time my warranty does not want to cover the repair. Thanks

Filed Mar 16, 2021 · Engine · 80,000 miles · WA

I purchased a 2014 mazda cx nine a year and a half ago. The other day I was driving and I don't know where my fan got really loud so I pulled over and turned up the heat and turned off any AC. All the sun steam started coming out of my engine and the car died. After towing it to the local dealership I was told that I had two options. I could either buy a brand new car or pay $13,000 to have it repaired. Apparently the water pump broke and the engine seized up. I had absolutely no warning. No leaking, no check engine light, nothing' I later found several reviews saying this was an issue with this make & model. I still owe over $16,000 on this car and now I have to get a new car.

Filed Aug 29, 2019 · Engine, Transmission · 108,000 miles · CT

My wife took our 2014 mazda cx-9 to liberty mazda for a check engine light that came on the evening before she already and an appointment for another issue. She asked them to check the light as well. After their findings they told sue the car had a catastrophic water pump engine failure. This water pump is located inside the timing chain cover and leaks coolant in to the engine. At this point we were handed over to a sales rep. Who informed us this was a foolish design with the water pump located in the powertrain behind the timing chain cover. This causes catastrophic engine failure with no warning this is wrong and should not happen. We talked to jason the sales manager who reiterated the same message and said he would put in a good word for me if cooperate called about my complaint. He did and cooperate offered us the eplan on a new car. Approximately $2,000.00 for a car valued at $12-14,000.00 this engine was manufactured by ford for mazda and the ford escapes have the same trouble. Please feel free to contact me

Filed Jun 21, 2018 · Engine · 81,000 miles · NY

I was slowly approaching a stop light when our 2014 mazda cx-9 started having vibrations, which at first came from underneath, between the driver's row and the 2nd row passenger. It immediately felt as if the car's engine was about to fail. I managed to make that right turn, carefully stepping on the brakes, and crossed a rail-road crossing. The car was running at a speed of 20 MPH. I slowed down to make another right turn towards my destination, then the engine abruptly died. The battery and check engine lights suddenly lit up on the dashboard. From the intersection's stop light to the location where the engine failed, it was a distance of approximately 0.5 mile. My wife came and picked up our 3 children from the corner of the street. My brother-in-law came to my location with jumper cables and gave my engine's battery a jump-start. The engine started but the vibrations were stronger. The car ran for another 0.3 mile before it died again. I had the car towed to the mazda dealership from where I purchased the car. After 1 day I was told that the incident was possibly due to a bad tank of gas. Another day later, I was told that something else was wrong with the engine, and that it was unrelated to the earlier suspicion of bad gas. After 5 business days, I was told that the engine's cylinder 6 needs a new cylinder head. The other option was a complete engine overhaul. The car has never been in an accident, and has approximately 81,000 mileage. The estimated cost for repairs was $5,834. This is a very serious safety issue that warrants an investigation. Had the car experienced engine failure on a busy interstate, my family and others could've been seriously injured or even killed.