2012 Hyundai Accent fuel system complaints

Filed Dec 27, 2015 · Electrical, Engine · 63,385 miles · PA

Around 50000 miles the car would over rev about 1000-2000 RPM when the clutch was released and foot off of the gas. It has progressively gotten worse. Now it will on its own while standing at idle run up to 5000-6000 RPM without warning and the only way to stop it is to turn the car off. When in gear, the car will accelerate without warning. If you depress the clutch, again it will run up to 5000-6000 RPM. The problem becomes exacerbated in warmer weather and lessened in cold weather. During the 12/24 heat wave here in pa, the car was undriveable and dangerous as I could not depend on it not "taking off". The dealer updated the software on 12/22 which did not resolve the issue, and no codes were found in the computer! Before 50,000 miles everything was fine.

Filed Aug 19, 2014 · Electrical, Engine · 22,102 miles · VA

7/15/2012, while pulling off from a stop oil and battery light illuminated and vehicle lost power. No check engine light. Approximately 10 minutes later, vehicle experience same problem. Shutting vehicle off and restarting corrected instant problem. No fault codes stored. Dealership removed, cleaned and re-installed throttle body and suggested using only exxon, mobile or shell gasoline. 7/17/2014, while sitting at a stop light, oil and battery light illuminated and vehicle stalled. Would crank but not start. Vehicle towed to dealership. No fault codes stored. Dealership replaced high pressure fuel pump. 7/31/2014, picked up vehicle from dealership following fuel pump replacement. Drove vehicle 14 miles, when pulling off from a stop, oil and battery light illuminated and vehicle stalled. Restarted vehicle and drove approximately 100 yards, oil and battery light illuminated and vehicle stalled. Upon restart vehicle went into "limp mode". Dealership diagnosed problem as being the computer. 7/18/2014 dealership called and advised hyundai tech line directed replacement of transmission range switch not computer. 8/15/2014, while pulling off from a stop oil and battery light illuminated and vehicle stalled. Restarted vehicle and took to dealership. 8/16/2014, no fault codes stored. Dealership advised nothing wrong with vehicle but will continue to drive. 8/18/2014, about 10 miles from dealership, while pulling off from a stop oil and battery light illuminated and vehicle lost power. 8/19/2014, dealership advised no fault codes were stored and hyundai tech line advised to replace low pasture fuel pump, fuel injectors and fuel rail.