2014 Hyundai Elantra: misfire or rough idle

Filed Jan 21, 2025 · Engine · OH

The engine in my car (Hyundai Elantra gt 2014) basically did everything I read about all the other Hyundai engines doing that are under engine recalls. Years ago it started having misfires, had the catalytic converter or parts of it replaced, sensors, over consuming oil, loud noises when it's lower on oil and eventually it just recently died. Unfortunately it's only 11,000 miles over the extended warranty period to get it replaced. The bad engine stuff basically broke the current catalytic converter and the dealership wants over 10,000 dollars to fix it and replace the engine... not including tax. The worse part is sometime like a year ago I went to a dealership because I had an apt for an oil change. The day before my check engine light turned on. So at the apt while checking in my car I mentioned to the guy taking photos of my car that the check engine light was on and please check it out. I waited two hours for them to give me my keys back and say I didn't make the appointment for the check engine light so they couldn't see what was wrong with it that day. And that had never happened before. At the time I had only been to dealerships to fix my car and The dealerships always agreed to check out the engine light when it was on except for this one time. Felt like I was getting pushed out the door. So I've spent the last year going to other mechanics attempting to fix the check engine light and it always just came back on when I got my car back. Tune ups, spark plugs, cylinder misfires. Elantra GT's are not represented in any of the recall articles I read about online so I felt the need to share my story because I think my car had the same engine as some of the other cars. RIP Elantra GT

Filed Apr 19, 2024 · Electrical, Engine · VA

The car has little ticks..buzzy sounds,rough idle,decease power,loss in the fuel economy, had regular tune up, but the car stillnot right and could possibly be the computer

Filed May 28, 2023 · Engine · VA

I purchased the car at a used car dealership. I drove it home and the next day the engine light lit up and it started to run rough. While driving it down the road the car shut down and I could not even get it off the road. I had it towed and they agreed to take it at the hyundai dealership. After running diagnostic on it they told me I needed a new engine and that there was no recall and that it was not covered under warranty. After paying 9500.00 for this vehicle and it dying leaving me stranded on the road. I have no vehicle.

Filed Apr 8, 2023 · Engine · PA

My 2014 Elantra has a blinking check engine light on. This is an ongoing problem. The dealership diagnostic keeps saying that it is a misfire and I have paid to have it fixed. Change all the plugs twice and the check engine light is back blinking. I can't drive it at all. Each time this happened I was in the middle of traffic when I was forced to try to pull over. Very dangerous situation.

Filed Sep 13, 2022 · Engine · MI

I noticed a rattling noise while accelerating in second and third gear under my car in the spring. I took it in to a repair shop and they resecured an under tray but otherwise did not seem concerned. The rattling noise continued. After driving on a longer trip on the highway recently the rattling became more frequent and intense, causing the whole car to shake. I also had difficulty accelerating above about 50 mph. I took my car in to a different shop the following day. They discovered that there was a misfire occurring in cylinder 3, causing buildup in the exhaust system (the rattling that I noticed) and which caused the catalytic converter to go bad, which I had to pay to replace. Throughout this entire time, my check engine light never came on, although it illuminated normally when turning on the car. The lack of a warning via check engine light when the misfire began occurring caused the converter to go bad, resulting in a very costly repair for me.

Filed Dec 2, 2020 · Fuel system · 106,271 miles · TN

I got a tune up on my car then discovered that the misfire in my engine coils is a manufacturer defect. This needs to be fixed as soon as possible. Some times when I crank my car the engine will try to start but makes a constant sputter and then I cut it off I have to let it sit for an hour and then try to crank it again to seee if it will start. My battery, starter, and alternator are good.

Filed Jun 25, 2020 · Engine, Fuel system · 60,000 miles · FL

Engine has rough idle since I got it I believe it has knock engine issues and should be on the recall list I have replaced engine coils injection system cleaning the RPM at idle is so rough my transmit fluid when I had my meter plugged in is so hot I'm afraid of a fire. But hyundai I've had such bad experience I'm afraid of the run around I just want it replaces fixes it is faulty engine now it surges. I don't want to die for this mystery hyundai engine issue.

Filed Jun 21, 2018 · Engine · 65,000 miles · MD

Dec of 2017 the car stalled while I was driving through a tunnel. Luckily we weren't moving really due to traffic. The car started right up and was fine. Jan 2018 my engine started to make a loud thumping sound, especially upon cold start up. Brought vechile in feb 2018 bc the souls was starting to happen all the time. First trip into hyundai they told me there were no codes coming up and it t was bc of my oil filter not being be correct size. However, I have had my oil changes done every 3-5 thousand miles and never once had any issue, ever. Mind you my car just turned three. They changed the oil filter even though I literally had an oil change about two weeks earlier and the issues starts in december. Nothing changed and nothing was fixed, the sound was still there. Brought it back about a week and a half later overnight so they could do the cold startup. Hyundai called me that morning and said my engine was failing and that I needed a new one replaced. I waited three months for the replacement engine bc it was on back order nationwide. I relieved the car back mid may on a saturday. That following monday the car was dead. Could not start it. The car was towed to hyundai, and the battery was dead. Hyundai replaced the battery. About two weeks later I started having issues while idling and in gear. The engine was skating and my rpms were going over 1 just sitting. I brought the car in and they again told me there were no codes and that the engine needed to get used to the car again. Another two weeks go by and now it's getting worse and it's especially bad in reverser. I brought it back in and they said that I needed my ignition coil packs changed bc my engine is misfiring. They sent me home with my car and said it was fine to drive. A few days later I leave work and it won't start again. It was towed to hyundai and they can't find anything wrong.