2014 Infiniti Q50 engine problems

Filed Oct 1, 2023 · Electrical, Engine · LA

Engine overheating and system not keeping engine cool, locks don’t work

Filed Jul 6, 2023 · Engine, Transmission · 90,000 miles · AZ

The contact owns a 2014 Infiniti Q50. The contact stated that while driving at 45 MPH, the RPM inadvertently increased briefly before returning to normal. The check warning light was illuminated. The vehicle was taken to an independent mechanic, who determined a failure with the output speed sensor and transmission valve body. The vehicle was not repaired. The manufacturer was notified of the failure but referred the contact to the federal safety agency Hotline for assistance. The approximate failure mileage was 90,000.

Filed Jul 23, 2022 · Acceleration, Engine · KS

I brought a lemon from premier auto kc out in Kansas city, Kansas! I was sold a lemon and have had major problems with the car since

Filed Jul 23, 2022 · Engine, Fuel system · NC

-When braking while hybrid and engine system are attemping to determine the power draw the vehicle will propel forward increasing momentum of vehicle rather than braking. -Vehicle is available for inspection. -This issue can cause collision due to the sudden undesired propulsion of the vehicle, as well as addition unnecssary use of the braking system. -Dealer states this is normal condition. -Vehicle has only been inspected by dealer. -There are NO warning signs, indicators, or alerts. Issue first started around 35,000 miles. -In addition the drivetrain might also affect the ability to propel forward. While in slow speeds (10 mph and below) the vehicle the vehicle will stutter making take off difficult from complete stop. Additionally, vehicle stutters just the same while braking to come to a stop (10 mph and below) making it difficult to navigate a safe stop.

Filed May 9, 2022 · Acceleration, Engine · 133,000 miles · GA

The contact owns a 2014 Infiniti Q50. The contact stated while driving approximately 45 MPH, the vehicle independently decelerated to 10 MPH. The contact depressed the accelerator and observed that the RPMS was elevated however, the vehicle failed to respond. The contact pulled off the road into a parking lot and turned off the vehicle. The contact stated that when she restarted the vehicle, the vehicle jerked while driving and failed to exceed 20 MPH. The contact stated there was no warning light illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the valve body assembly needed to be replaced. The vehicle had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 133,000.

Filed May 9, 2021 · Electrical, Engine · TN

Engine has rough idle while in park. Even after the following maintenance was done. Replacing spark plugs, engine software update, coolant flush, power steering flush, fuel system clean, new mass air flow sensors both sides, serpentine belt, all new gaskets on top part of engine, valve cover, intake manifold, spark plug tube seals. Flushed rear and rear diff and transmission. Steering is heavy to turn. The colder it is outside the worse the engine shakes. Throttle response is delayed at times. Transmission shifts hard the worse the engine shakes. Colder it is the slower the windows roll up and down along with the wipers. Engine drops RPM when turning wheel while in park. When driving engine drops about 100 - 200 RPM then keeps going back up under acceleration but causes transmission to shift hard. This problem causes the output shaft seal to break and rear wheel speed sensors were replaced. After a sharp turn car hesitates to accelerate even if hard on the gas. Extreme cold temps outside make the engine almost sound as if something inside engine internals is not right. Hot and humid weather makes it run the best. No check engine light problem started at 90,000 miles now im at 126,000 miles and still no fix and no check engine light. Loss of engine power. Even going up the smallest hill incline maybe a couple feet over a distance of maybe 3 blocks engine downshifts to 5th gear just to maintain 70mph even though I can be going 50mph in 7th gear. Car jolts forward when coming to a stop as if the output shaft is still spinning at a different speed than the engine. Can cause an accident if not fixed. Other infiniti cars seem to have the same problem. Even the g37.

Filed Sep 13, 2019 · Acceleration, Electrical · 53,000 miles · NC

First instance: while driving on the highway going 60mph my car powered down, preventing me from controlling the car. The gauges and lights inside the car went dark and MPH went to 0. I lost electrical power and after 1 minute the car is back to normal. Second instance: as I was pulling into a driveway and went over a bump the car lost power and powered down, I naturally pressed the gas before I understood what was wrong, the car powers back up as I'm pressing the gas and caused me to almost hit another car.

Filed Mar 21, 2019 · Acceleration, Engine · 72,000 miles · GA

My power steering belt snapped off. Prior to that, my brake pedal was loose enough to move it up and down roughly a 1/4 of an inch with my foot. The only way to engage the cruise control was to hold the brake pedal up with my foot, then in order to keep the cruise control engaged was to keep holding the brake pedal up with my foot because it would sense that the driver slightly tapped the brake pedal to disengage it if I stopped holding it up manually. I had to have the brake pedal bolt tightened. It has happened again and I can't reach the bolt, so I have to pay to have it fixed again along with the other issues. The other issue is my A/C blend door is not operating, which is causing the two driver side A/C vents to blow warm air out of them while ever other vent blows ice cold . Not fun in these incredibly hot and humid georgia summers.

Filed Jan 24, 2019 · Driver assistance, Engine · 70,058 miles · DC

During 20 degree f, I drove my car with no issues to a retail store, parked it in a parking lot. After shopping, returned to my car & started it up, put in reverse, started backing up, then several malfunction lights lit up on the car's dash & the steering wheel locked all of a sudden. I could not turn the steering wheel. I could only move the car forward & backward & this is all while the car is powered on. I had to have the car towed to the dealership. In past history, there has been 2 other steering recalls (electric power assist system & adaptive steering parts) on this same make/model,& year. The dealership service team told me on 1/22/19 & the issue with my car was the chassis control module (the brain of the steering wheel) & a lane departure malfunction & the cost of repair is $1600 (not covered) despite I have an extended warranty. The chassis control module as the brain of the steering wheel clearly relates to the previous steering recalls (electric power assist system & adaptive steering parts) along with the lane departure malfunction as diagnosed by infiniti dealer in suitland, maryland. The description of the previous 2 recalls (electric power assist system & adaptive steering parts) say that in freezing climates, the engine compartment reaches freezing, disabling the power steering system, resulting in a loss of steering, increasing risk of crash. As diagnosed by infiniti, definitely the chassis control module & even the lane departure technology parts have not been included in the previous steering recalls & should have been. Please issue steering recalls for the chassis control module and lane departure malfunction parts or just the entire steering system. Infiniti is fixing my car at no charge to me after I told them about the related previous steering recalls. Per the internet, many people have experienced this with this car model. Danger!!

Filed Jan 24, 2019 · Driver assistance, Engine · DC

During 20 degree f, I drove my car with no issues to a retail store, parked it in a parking lot. After shopping, returned to my car & started it up, put in reverse, started backing up, then several malfunction lights lit up on the car's dash & the steering wheel locked all of a sudden. I could not turn the steering wheel. I could only move the car forward & backward & this is all while the car is powered on. I had to have the car towed to the dealership. In past history, there has been 2 other steering recalls (electric power assist system & adaptive steering parts) on this same make/model,& year. The dealership service team told me on 1/22/19 & the issue with my car was the chassis control module (the brain of the steering wheel) & a lane departure malfunction & the cost of repair is $1600 (not covered) despite I have an extended warranty. The chassis control module as the brain of the steering wheel clearly relates to the previous steering recalls (electric power assist system & adaptive steering parts) along with the lane departure malfunction as diagnosed by infiniti dealer in suitland, maryland. The description of the previous 2 recalls (electric power assist system & adaptive steering parts) say that in freezing climates, the engine compartment reaches freezing, disabling the power steering system, resulting in a loss of steering, increasing risk of crash. As diagnosed by infiniti, definitely the chassis control module & even the lane departure technology parts have not been included in the previous steering recalls & should have been. Please issue steering recalls for the chassis control module and lane departure malfunction parts or just the entire steering system. Infiniti is fixing my car at no charge to me after I told them about the related previous steering recalls. Per the internet, many people have experienced this with this car model. Danger!!