2016 Hyundai Sonata: fuel pump failure

Filed Mar 27, 2025 · Fuel system · CA

The fuel pump where the fuel line connects to it is cracked and squirting fuel all over that area. Some time ago I started smelling fuel when getting close to the vehicle or when opening windows. Took it to a shop to have it checked out and the technician couldn’t find the problem, since there is no check engine light on or any type of warning. A few days ago I decided to check the bottom part of the fuel tank and noticed that there were traces of leaking fluid. Reached to it and checked it closely and certainly was fuel dripping. Checked the top of the tank where the fuel pump is and found out that the problem was there. Did some research online and found out that that’s a very common fail. I Would like to have it investigated and recall all those failing cars for my safety, my family’s safety and everyone else that trusted this company and is letting us down. First time I noticed this was back in 2022 and is when I took it to the shop.

Filed Aug 25, 2023 · Engine, Fuel system · 98,000 miles · TX

The contact owns a 2016 Hyundai Sonata. The contact stated that the vehicle failed to start. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed that the engine had failed. The vehicle was repaired; however, the failure recurred. The vehicle was taken back to the dealer, where it was diagnosed that the high-pressure fuel pump had failed. The contact related the failure to an unknown Hyundai Extended Warranty that had expired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 98,000.

Filed Jun 27, 2023 · Electrical, Engine · MD

The problem appeared on December 2020 in the middle of a Hwy 50 East in Washington DC. It was scary and dangerous. First it showed some malfunction sign on the screen and right way slowed down to 40 then 20 then zero. I push the gas pedal but didn't work. I have no idea what to do. I call Hyundai college park dealership agent explained what happened. She [XXX] told me to tow the car and suggested one of their partners tow truck driver. However when I turn off the car and turned on again it worked. The engine started to run. I begun to drive. After some time I took the car to the dealer and told me the car have safety recall. The repaired it and told me it will be ok. But in reality, it didn't. This happened again and again and again. Till this moment the engine continues to stalled in the middle of HWY . I got no solution from the dealership. When ever I visited they give me different issues that I need to fix. One time they said it is fuel pump and another day they said coolant pipe needs to get fixed. I am so tired of keep going to the dealer services. I put my life and my precious kids life at risk all the time while I am driving this car. It is frustration because I got no one to help me and understand why this issue is persistent. I don't want to end up being injured or got killed by an incident that caused by this problem. How awful it can be if a collision happens in the HWY. Driving this car every day with my kids are frightening and hard to imagine what could happen to us. So I am requesting an investigation on this car with the case number I got from the headquarters. Here is my case number [XXX]. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Filed Feb 8, 2023 · Electrical, Engine · FL

My car idles very rough at times, and sometimes when idling, it dies out. At times it is difficult to even start as if it's not getting the electrical signal to the engine. Hyundai replaced the fuel pump, but that did not fix the problem, but cost $1,200. No warning messages. Two other automotive companies also did a diagnostic tests, but couldn't find the problem as it seems it has to be tested WHEN IT IS ACTING UP. It died on me far from home a week ago, but eventually restarted. I'm afraid to drive it especially at night as it died when idling at a light and almost didn't restart.

Filed Jul 27, 2021 · Electrical, Engine · OH

Fuel Pump Control Module replaced before 50,000 mi. - 58,539 mi. got my 2016 Hyundai Sonata Sport for ECM Update. Told dealership I heard ticking/clicking noise coming from engine; said oil was low and suggested oil change & low key battery was causing issues. Oil consumption was more and more 1qt every 2,000 mi, then 1qt every 1,000 mi. 1/29/21 at 90,340 mi, on the turnpike (70 MPH), car check engine light came on, car started vibrating VERY bad, pulled over & LIMP mode had activated. Hyundai dealership was 5 miles away, - found cylinder 2 had a misfire(s) - one of 2 exhaust valves burned a hole through; valve seat - damaged. Cylinder head and exhaust valves, spark plugs were replaced, & oil change. Engine light came on a couple days later car did not go to LIMP MODE. 2/12/21 at 93,466 mi, took the car to Hyundai for service again, Exhaust CAM Phaser failing, Replaced CVVT & Timing Chain Tensioner & RTV silicone. 4/21/21-103,821 mi. went for an oil change & oil consumption test, went back after less than 1,000 mi, Hyundai dealership stated that the car was .73 qts low and normal, I checked before the service, oil was closer to the "E" than "F". Dealership unreliable; did not complete test. Adding oil about 2 qts every 1,000 mi. Car was also idling weird NO warning lights. 7/22/21, catastrophic break down while driving on the Turnpike (70 MPH), car died, after all lights and gauges shot up. NO warning lights before issue. Lost power steering, coasted at 70 mph to 0 mph (in 30 seconds), barley to side of the road, late night needed a tow. Battery & Alternator fried because of this - replaced next day. Car starts now; wont get past 2,000 RPM & stalls out after 5 mins of running in "P"- NO warning lights, Engine rocks before shut off. NO warning lights on after restarting. Called HYUNDAI Corp. case sent to supervisor, no help getting the car to dealership, no rental, told not to expect a call before 8/3/21. All oil services completed at or before suggested intervals.