2017 Mazda CX-5 fuel system problems

Filed Oct 12, 2026 · Acceleration, Engine · CO

My 2017 Mazda CX-5 has experienced a recurring condition more than six times involving sudden jerking, rapid deceleration, and loss of normal accelerator response during extended highway driving, often while cruise control is engaged. On multiple occasions the engine has also shut down. On 09/11/2026, while traveling south on I-35 at approximately 80 mph with cruise control engaged, the vehicle suddenly began jerking violently and rapidly losing speed. Normal accelerator response was lost and a vehicle behind me nearly struck my vehicle. I was able to reach the shoulder just before the engine shut down. The vehicle would not restart and required towing. There was little or no meaningful warning before the loss of power. The vehicle was inspected by a Mazda dealer. I specifically reported the recurring highway jerking, deceleration, loss of throttle response, and shutdown concern. An aftermarket OBD-II device was removed after the dealer identified parasitic battery draw. The dealer subsequently stated in writing that the battery and alternator were healthy and that the vehicle was “operating as intended.” On 10/09/2026, with that device no longer installed, the same symptoms occurred again during highway travel and the vehicle again became disabled and required towing. The Mazda dealer has now verified the drivability concern and reported a Fuel Rail Pressure Sensor “A” Circuit Low fault and low fuel pressure. The dealer is recommending replacement of the high-pressure fuel pump as an initial repair, followed by further testing of the in-tank fuel pump. The vehicle is currently available for inspection at the Mazda dealer. the federal safety agency’s VIN lookup currently shows 0 unrepaired recalls. I am reporting this because sudden loss of acceleration and power at highway speed creates a serious collision and roadside safety risk.

Filed Oct 7, 2026 · Fuel system · NY

My car started to smell like gas. I brought it to a shop and there was a leak in my high pressure pump in which the gas was leaking on to my engine. I paid $1600 to have this replaced and there is only 88,000 miles on the car.

Filed Oct 14, 2024 · Electrical, Engine · WA

Twice now, my 2017 Mazda CX-5 stalled on the highway with a check engine light popping up--both times was driving around 60-70mph for a couple of hours and had about a quarter tank of gas left. The first time, no code was found, but the second time, after a deeper diagnostic, the dealership found a P0192 code. After reading here and many other places online, based on the code and the car's behavior, it really sounds like the Denso low-pressure fuel pump is to blame; that's the source of the recall for 2018 and 2019 Mazda CX-5s experiencing this same issue [XXX] ). If the 2017 model also uses that fuel pump, why isn't it included in the recall? If this dangerous and erratic car behavior is due to a faulty part, it really should be covered by the recall. Shame on you, Mazda. Lives are at risk. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 7, 2024 · Fuel system · FL

18-20 year same model and trim were recalled for fuel pump. Mine a 2017 has same symptoms died on highway going 75 almost life threatening. SEVERAL threads online with 2017 models are stating same case. I believe should be included in recall - very dangerous. Please please escalate so no one gets hurt on the highway!

Filed Dec 24, 2023 · Engine, Fuel system · DE

My car has been getting the P092 code with check engine light, it runs really rough, i have had many parts replaced at my expense when i know the model years 2018 and 2019 have been recalled, I am many others are having the same issues, is it going to take people dying on highways because their car just shuts off. My cat has been having the same issues reported in safety recall 19V497-6744. after googling around, I may have found an answer. Denso, who makes low pressure fuel pumps for a lot of different manufacturers, recalled several million of them a couple of years ago. They determined that there was a manufacturing defect that causes the pump impellers to crack and deform. Then they don't move enough gas to the front of the engine. I guess there is no pressure sensor between the tank and the high pressure fuel pump, so the problem isn't recognized by the car until the sensor in the fuel rail sees it. Several auto makers have issued recalls, including Mazda. But Mazda only went back as far as 2018. Toyota recalled cars as far back as 2013. There are now several lawsuits against various auto makers arguing that Denso knew about the problem in 2015, and the recalls should go further back in time. These two articles do a good job of covering the history of the problem:

Filed Jul 24, 2023 · Engine, Fuel system · 80,000 miles · OR

The contact owns a 2017 Mazda CX-5. The contact stated while driving approximately 65 MPH, the vehicle jerked and stalled. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The dealer retrieved DTC code: P0192 with a faulty fuel pump. The contact added fuel, and the vehicle operated as designed. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted. The failure mileage was approximately 80,000.

Filed Jul 6, 2023 · Fuel system · MI

I purchased my Mazda CX5 in July of 2017. In August 2018 I was driving on an expressway and the car started balking and cut out completely on the side of the road. The engine light was on. I called roadside assistance which I had purchased at the time I bought the car. They had no one in the area. After sitting at the side of the road with the hood up the car started. I took the car to an Auto Zone. They put the car on their computer and did not find a problem other than the engine light coming on. Since that incident the car has had identical problems in city driving and expressway driving. There is absolutely no warning other than the sudden balking and stalling. Twice I have been driving on the expressway at 75 mph in New Mexico and have had to limp to the breakdown lane with semitrucks going by within a foot of my disabled vehicle. We never let the car go below a quarter of a tank of gas. Mazda had recalls on fuel pumps in 2018 and 19 CX5s. The description of the problems on the recalls are identical to what happens with my car. That doesn't seem to impress Mazda as the dealership dismisses my problem as not being under the companies recall specifications. I checked with the dealership each time I brought the car in and got the pat answer, 'not covered under the recall list". I finally took the car to Crippen Mazda where I purchased the car specifically to check the problem. They had the car for the day, did not find anything and although they said they road tested the car it hadn't gone 1 mile according to their records. $130 charge.The answer, "bring it in when the engine light is on". The engine light does not stay on. I called "Mazda customer service" and was told to take a picture when the car stalled. Take a picture of what? They told me they would send an email which never happened. I wrote a letter to Mazda headquarters and have not gotten a response. I now have a car which has intermittent problems and no help from Mazda.

Filed May 18, 2023 · Fuel system · PA

What component or system failed or malfunctioned, and is it available for inspection upon request? Sudden loss of power (and speed) on interstate highway at ~65 mph. Fuel level was under 1/4 tank level. Weather was clear and approx. 60-70 deg F. Cruise control was on and vehicle working normally for hours on the road trip with cruise control on and functioning properly on the highway. Suddenly, the vehicle lost power, check engine light came on, and vehicle was running very sporadic. P0192 code thrown. Low fuel pressure which resulted in car suddenly going into reduced power mode. Sudden loss of high pressure pump would have resulted in complete loss of propulsion, which did not occur in this case - this indicates low pressure from the in-tank LP fuel pump. How was your safety or the safety of others put at risk? Sudden and unexpected loss of power on the highway which could have resulted in rear end accident or loss of control while trying to get the vehicle off the highway. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes - if fuel tank level gets below 1/4 tank the problem will occur. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No - sudden loss of power and then engine light came on (constant, not flashing) and vehicle had sporadic power issues until we could get off the highway. Certified technician put scanner on car. Code was P0192 - low fuel rail pressure. Filled fuel tank to full, cleared code, and continued to drive car. Issue did not reoccur until fuel level fell below 1/4 level (approx.). 2017 Mazda CX5 is believed to have the same or similar low pressure fuel pump in tank, OEM = Denso, which is on recalled Mazda models from 2018 and newer. I believe older models of Mazda's with the same pumps should also be recalled!

Filed May 5, 2023 · Acceleration, Engine · VA · crash

On February 14, 2023 around 3:30 - 4:30 p.m. (EST), I drove to the local WAWA. Upon entering the driveway of WAWA at a very low speed and depressing the brake the car failed to come to a complete stop. I pressed down on the brake as hard as I good, but the car did not come to a stop until hitting the security/safety bollard in front of the WAWA store. I did not get injured and no one else was injured. The front end of my car sustained over $4000 worth of damage. The insurance company repaired by car. I was asked by the insurance company what caused the front end damage. As I played the accident over and over in my head, I just could not see what I did wrong. My foot was on the brake. Also, I entered the entrance of WAWA at a very slow/low speed. After a few weeks I took the car to the Mazda dealer to let them know the car accelerates and engine revs. Also, the car jolts forward while decelerating from about 20mph to 10mph. The car dealer/repair shop could not replicate the problem. Was told to bring the car back in, if problem continues.

Filed Apr 24, 2023 · Engine, Fuel system · MO

While driving on the interstate (continuously for about 4 hours) the vehicle suddenly lost power and the engine stalled. Power steering and power brakes were impacted and the vehicle was difficult to get off the road safely. Once stopped, it would not restart over a 30 minute period. A tow truck was called and it was taken to the dealer. A couple hours later when the dealer checked it, the vehicle started normally and drove without issue. A P0192 code was stored in the ECU so the high pressure fuel pump was replaced even though they could not reproduce the problem. The vehicle has 63000 miles on it now, but a similar sequence happened at 15000 miles. In that situation while driving at a steady speed all power cut out and the engine abruptly downshifted to the point where the tires squealed. After pulling off the road and stopping/starting the vehicle it seemed to drive normally again. We were traveling at the time with no dealer nearby, but when we returned back home we took it to the dealer and they found the same code P0192 and ran various tests and decided to replace the high pressure fuel pump even though it was driving properly. In only 63000 miles this vehicle has twice failed dramatically and without warning in ways that could easily cause an accident or injury. I am lacking in confidence that the root cause has ever been identified.