Alternator/generator/regulator Problems of Hyundai Sonata - part 1

The alternator and battery of this vehicle has been switched at least 3 times. Purchased new and all, yet the car keeps getting drained and left powerless. Something is draining the energy of the vehicle and the root to the problem is not known.

See all problems of the 2011 Hyundai Sonata 🔎.

The contact owns a 2007 Hyundai Sonata. The contact stated that while driving at various speeds the vehicle drove sluggish and unresponsive and would not properly accelerate. Upon inspection it was discovered that engine oil from the valve cover gasket had leaked onto the alternator. The vehicle was taken to the local mechanic who diagnosed that the alternator was damaged due to the presence of oil inside and needed to be replaced. The vehicle was not yet repaired. The contact indicated that the vehicle was previously serviced by the manufacturer to prevent the failure from occurring but the failure had occurred on two separate occasions. No further information was available. The manufacturer and local dealer were not notified of the failure. The failure mileage was 151,000.

See all problems of the 2007 Hyundai Sonata 🔎.

I had to replace the battery within a month of getting the car, then again 6 months later. The radio and back up camera went out after a year of having it. The headlights kept going out, and eventually the wiring started burning. Battery went out again along with the alternator now. Mid drive the lights would cut off, speed thermometer would be off by 15, and almost impossible to turn the wheel.

See all problems of the 2016 Hyundai Sonata 🔎.

My car battery light went on. I replaced the battery 2x, replaced the alternator, checked the ground and all connections. My battery light flashes, then goes off then my seatbelt light blinks and goes off and my windshield wipers are not getting the power to wipe and the rear defroster turns off every time the battery light flashes. Ive been to 3 mechanics and they all say bring it to Hyundai. When I brought it they said there was no recall so I left the service room and am now on the NHTSA site. All of this is while both stationary and in motion.

See all problems of the 2006 Hyundai Sonata 🔎.

Valve cover leaks onto alternator, can cause sudden power loss and premature alternator failure. I've been researching this issue and other people have had this exact thing happen. Apparently once you get the valve cover gasket fixed, it will fail again in another year or so. There is a defect either in the gasket or the valve cover mating surface. Currently my car is only at the stage of oil leaking from cover gasket and getting onto the alternator. No further failure has happened yet. My car has 67,000 miles.

After a tire change the hazard light and tire light came on. I was advised to take it to the shop and see if the sensor needs to be reset. I took it in a shop and the tire light went away but the hazard light remained. After about a week with the hazard light on, I was driving in the morning around 7:30am the car started to brake itself while driving about 30mph on an austin town street. I pulled over due to risk of getting rear ended. I was able to drive about 10 feet before it did it again and I parked. The "check hybrid engine" light then came on. I sat for about 20 min and tried to turn it on and the "check hybrid battery light came on again and this time the car wouldnt turn on. I called a tow truck and had them tow it to happy hybrid in austin TX and was advised it may be my hybrid battery generator as my hybrid battery was at 5%. They could not fix it but it should be covered under warranty and I had to have it towed to the Hyundai dealership in south austin TX on south ih-35. It has been there now for 2 weeks and I am without a vehicle. The dealership stated this may be related to 2 recalls I have on my vehicle but they are not sure. I purchased this car February 2018 and it is now March 2020. Only 2 years.

See all problems of the 2017 Hyundai Sonata 🔎.

Replaced alternator due to faulty leak oil gaskets. Oil leaks onto alternator in 3. 3 liter v6 Sonata. This will be the second alternator in less than a yr. I also read in a auto forum others have complained of the same issue. This can be very dangerous causing car to just die with little warning other than battery light lighting up on dashboard. Vehicle barely made it home.

Both headlights and break lights continue going out. First time I replaced the break lights, they had melted to the unit. I have had both headlights go out at the same time on two separate occasions. I have replaced the alternator twice now and it is looking like I will have to replace it again soon, headlights are getting dull (it's hard to see, and my brights won't click on (it is not the blinker column)), the battery has been replaced when the alternator was replaced as well. This is getting expensive. The dealership told me it was the blinker column when it was actually the alternator. Replacing the lights have been happening for years, the alternator problem started last year, so within 2 months of replacing it the first time, it went out again, and now 5 months later, it is needing to the be replaced again. It appears that it is perhaps an electrically issue since lights, battery, and alternator are going out.

See all problems of the 2013 Hyundai Sonata 🔎.

Takata recall I was driving my 2012 hyndai Sonata down the highway going on vacation my kids and I and it gave me a warning sign to stop driving putting us on the side of the road for 5 hours my hazard lights stop working and the car went completely dead after a long crazy night trying to get help off the side of the road I had put a new alternator and belt on because the belt caught fire but it's still isn't starting no one knows what's going on what do I do?.

See all problems of the 2012 Hyundai Sonata 🔎.

Oil leak from from engine leaks on alternator causing the alternator to become damaged and not working. Caused car to stall and shut down while driving. There where all lights light up and blinking before car shut down. While there is a recall for certain Hyundai models with the same problems. There is not one for the Sonata which has displayed similar problems. The recall number is 14v415000.

Leaking valve cover is allowing oil to leak down onto the alternator. Car can be stationary or running. Most notable when car engine is running. Oil leaking onto alternator can cause alternator to short. Alternator failed and car battery could not charge battery. Car died while my wife was driving and she had to pull quickly off to the side of the road.

See all problems of the 2004 Hyundai Sonata 🔎.

While driving in traffic car began to jerk and lose speed though the engine was running. The car stopped in the middle of moving traffic. Transmission fluid spilled out profusely. Transmission was replaced but started to slip again the same day I picked it up after new (remanufactured) transmission was installed by the Hyundai dealer. Prior to this transmission issue, the alternator in my car failed while driving in the middle of moving traffic. This complete transmission failure occurred shortly after a new engine was installed because the original engine seized and failed prior. Alternator was replaced. The newly installed alternator failed again. A new alternator was once again installed. I am now having similar electrical problems yet again and there is a current concern that the vehicle may possibly stop suddenly and hazardously again while in motion.

I have had my alternator and battery replaced within the last month and my car is cutting off while I'm driving it. The lights on the dashboard come on the radio powers off and the wheel starts jerking back and forth and it cuts off or begins to cut off and corrects itself. I was driving in the city during these incidents and the car was either turning or pulling off. Once on the highway it cut off while in motion.

See all problems of the 2014 Hyundai Sonata 🔎.

There appears to be something wrong with the car's electrical system. While driving at night, the headlights flicker, and the radio/clock lights flicker on and off when the turn signals are used. In addition, about a month ago I was driving in the rain, and had the a/c running. Whenever the windscreen wipers were running, the car's engine lost power and felt like it was going to cut off. When the electrical load was reduced, the engine operated normally. I had the alternator checked and was told that it was functioning fine.

April 3, 2018: two years ago we replaced the alternator in our car. Suddenly we are having issues with the battery light and seat belt warning lights coming on and off or staying on. We went online to see if there were complaints or issues of the same kind. We find that others have complained with the oil valve and alternator problem as well as the indicator lights coming on and off or staying on. So we took the alternator out and returned it because thankfully it was still under warranty. Therefore, this is now the third alternator for our car. However, if this is an ongoing problem, we want to be part of documented cases with the same issue. As of today, the car is running fine with the newest alternator. Our frustration is with the fact that this is the second one in two years to have to be replaced because of whatever reason. Thanks. . .

Oil leaks from front valve cover gasket drips onto the alternator causes electrical system to shut down causing engine to shut down in traffic while in motion.

See all problems of the 2008 Hyundai Sonata 🔎.

Noticed oil was leaking onto my alternator, causing the car to shut off. Issue with the valve cover gasket.

I first noticed the valve cover gasket leaking onto the alternator at about 121,000 miles and at 140. 000 miles I had the valve cover gasket replaced, thermostat, intake plennom gasket also. And had the alternator replaced after it failed because of the oil leaking onto it at 156,092. Luckily I just drove by my mechanics garage at about 50 mph and about a mile passed his garage the car started to buck and stall and all the dash board lights were flashing along with the cd turning on and off along with the seat belt light which was flashing on and off when it was buckled for about 1 month prior to this failure. I actually made it to his garage before it shut down in his parking lot.

On Saturday 9/16/17 I was at a stop light sitting still when my car stalled and went dead. I looked at the dashboard and saw the engine light was on. The brake was frozen and before I could restart the car it rolled into the vehicle in front of me. There no damage to her Jeep. However my car hit the spare tire and rack on the back of her trunk, causing damage to the hood of my car, the grill and lower bumper. We did not exchange information, as she did not have damage to her car, so she left the scene. I drove the car home (2 miles from my house) and called the dealership. They told me to bring the car in. I brought it in the same day. Raymond, the service agent came outside to survey the damage and I told him what happened. He went to talk to the service manager and later came out and said they will take the car and put it on the machine to get a diagnostic reading to see why the car stalled. They gave me a loaner car and I left. On Monday, 9/19/17, I returned to the dealership after I got off work and was told by raymond that they could not find anything wrong thus far. He said he wanted to keep the car another day or two to take it for a drive and try to see if it would stall again. I agreed and asked raymond to also check the fuel injectors, fuel pump, fuel regulator, as my friend who is a car mechanic suggested to me that this can cause a car to stall also. He said okay. On today, Wednesday 9/21/17, raymond called me and said they took the car out for a drive and it did not stall, nor could they get a reading that anything was wrong when they put it on the machine. He said he could not understand why the car would stall. I asked for a diagnostic report and he said he could only give me a copy of the service ticket. I am afraid that this car could stall again and what if it happens while driving -- it could be much worst damage and bodily harm. Please help!.

It all started with 3 bad alternators. The alternator was replaced 3 times in 2 years all brand new alternators. In those 2 years the car had trouble starting in interments. Turning the key 5-6 times the car will eventually start. Recently the car's headlights, air conditioning, and radio turn off when the car is slowing by applying the brake. Computer prompted no code for a problem. I have read about these same issues with the same make, model, and year. What is the malfunction?.

For the second time, I have had oil leaking out of the valve cover or timing belt cover onto the alternator. So much so, that the alternator becomes soaked and "shorts out" according to a Hyundai dealer. Mechanics who have repaired this all agree that this is a hazard and public safety issue. "fire risk" and "sudden complete loss of control at highway speeds" were both mentioned. Hyundai states that my vehicle is out of warranty due to mileage and says that there is no recall for this problem despite the obvious risks that their mechanics and other mechanics mention. After very little effort in researching this problem on the internet, it immediately became obvious that this is a common recall for Hyundai concerning this engine(3. 3l v6). The recalls name other Hyundai products but for some reason skip my vehicle even though two reps at Hyundai customer service state that "you are describing the exact same problem". We have spent close to $1000 on this one issue in the last year. It nearly caused my wife to be stranded on the interstate 10hrs from home. And Hyundai admits that it is an issue but because my VIN is not listed, they refuse to help fix or refund any thing that has already been spent on this manufacture defect. Again, I emphasize that this is a public safety hazard that needs to be addressed. Despite recent repair, this problem still continues. The vehicle was traveling at 70mph each time this issue occurred. I have records of repair from independent mechanics and statement from Hyundai stating this problem. This occurred at 118,000 and 132,000 miles. It seems like it occurred prior to this as well(looking for records).

The contact owns a 2015 Hyundai Sonata. While driving 32 mph, the contact heard a loud noise underneath the hood. The overheating, steering, and battery warning indicators illuminated and the engine stalled. The contact pulled over to the parking lot. The vehicle was towed to the dealer where it was diagnosed that the alternator needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 66,000.

See all problems of the 2015 Hyundai Sonata 🔎.

I have the 3. 3l v6 engine that is also in two other vehicles made by hyndai. Both of those vehicles have been recalled due to the fact that the engine leaks oil from a faulty gasket and drips onto the altenator. This causes the alternator to fail prematurely and often without warning. I am on my third one now and it is showing signs of failure. This can be extremely dangerous on the freeway when the vehicle all of a sudden loses all electrical power. This scenario has happened to me twice now. No headlights, no dashboard indicators, no brake lights, no turn signals. At 70mph this creates an extremely dangerous scenario.

On the 3. 3l engine there is a fault in the intake manifold gasket that causes oil to leak onto the alternator causing premature alternator failure. If the vehicle loses power while driving this can increase the risk of a crash. This problem has happened on other vehicles with this same engine such as the veracruz and a recall has been initiated. For some reason the recall does not extend to the Sonata as it should. The following is from the veracruz recall involving the same engine. "Hyundai motor company (Hyundai) is recalling certain model year 2007-2012 veracruz vehicles manufactured from December 26, 2006, through July 24, 2012. The affected vehicles may experience an oil leak from the front cylinder bank valve cover gasket. If there is a sufficient amount of oil dropped onto the alternator, the alternator will be damaged causing the charging system to become inoperative. " my alternator has failed twice now, once while driving and I experienced a total loss of vehicle power. I was able to force the vehicle to the side of the road without incident but it easily could have gone bad on me as I was on the freeway in traffic. Once my alternator and subsequently my battery died I was left without control of the vehicle and without lights on the vehicle to warn other drivers of my situations.

Front engine valve cover gasket leaked oil onto alternator causing it to become damaged, which led to poor transmission shifting and then complete loss of all electrical power.

See all problems of the 2009 Hyundai Sonata 🔎.

My valve cover gasket leaked oil onto the alternator and caused it to fail prematurely. My research has uncovered many Hyundai vehicles having recalls with the same engine specs but Sonata is not covered. Why is this? why are so many consumers paying for this problem on the Sonata when other Hyundai vehicle (santa fe; veracruz) having identical engine setups are being recalled? I realize my Sonata is almost 10 years old but shouldn't it still be a consideration?.

Car started as usual and I was driving on a city street getting ready to get on the highway. All of a sudden the car would only go about 20 mph and reach 1000 rpm. It died shortly thereafter on the highway frontage road. All of the lights for abs, brakes, check engine etc. Came on but the emergency flashers would not work so I had to keep pumping the brakes so nobody would run into the back end of my car. It would not restart so I had to have it towed to the dealer. Dealer stated valve cover gasket had leaked oil onto the alternator and ruined it. That in turn ruined the battery. Car was repaired for $1400 including the tow and a rental car. After looking at Hyundai recalls, I noticed the one for the 2009 vera cruz (NHTSA# 14v415000) in which 61,122 units were recalled for this same problem. In researching the affected valve cover gasket, I found the same one was used on my 3. 3l engine that was listed as defective on the 3. 8l vera cruz engine. If that part was defective on that vehicle, why was the scope of this recall not extended to cover all possible vehicles that could be affected? I would like the cost of repairs refunded to me since Hyundai obviously knew this part was defective but didn't issue a recall to cover all affected vehicles.

Engine control module(ecm) failed without warning while the vehicle was stationary, requiring extensive repairs. May have also caused battery, alternator, brake switch, condenser fan, and other electrical components to fail.

I first noticed a problem with my 2008 Hyundai Sonata on Friday 08-05-16 when I exited a highway and my seat belt and battery indicator lights began to alternate flashing. I scheduled an appointment with my mechanic a few days later (they are closed on weekends). While driving the vehicle over that weekend those same two indicator lights would continue to alternate flashing when driven below 40 mph. On 08-09-16, while driving on the highway to the mechanic, numerous other indicator lights on the dash began to turn on one by one. After exiting the highway the vehicle began stalling and ultimately lost power. My mechanic replaced the alternator and noticed a significant oil leak near the alternator. He steam cleaned the engine and then found an oil leak from the "front valve cover gasket" was the cause. He replaced it. I'm aware other Hyundai models have been recalled for the exact same problem. We also own a 2007 Hyundai veracruz and we experienced the same problem to that vehicle one year ago, when the veracruz was 8 years old. This happened to my Sonata at the same "age", 8 years old. The veracruz damage was covered by a Hyundai recall. I believe the 2008 Hyundai Sonata needs to be included in Hyundai's recall.

While driving, the damper pulley seperates and the power steering fails along with the water pump and the alternator. This damper as it is called is a device that drives all the belt powered devices on the engine. I asked the dealer if there was a recall on this and the reply was no. How can a power steering failure not be a recall? when you are turning and the power steering fails I would say the majority of drivers would not be able to steer the vehicle out of this situation. Look online and view all the places that list this problem. This is a big safety issue the vehicle steers very hard and is difficult to control.

Same problem as described in 14v415000 Hyundai veracruz recall. While driving the esc warning light on, then intermittent battery + seat belt indicating alternator failure, caused by leaking valve cover. Can cause sudden failure. This defect is not isolated to the veracruz and perhaps the recall should be broadened.

The contact owns a 2006 Hyundai Sonata. While driving the vehicle, the contact heard an abnormal noise. The vehicle was taken to an independent mechanic who stated that the drive gasket was leaking onto the alternator and the alternator needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The contact referenced NHTSA campaign number: 14v415000 (engine and engine cooling); however, the VIN was not included. The failure mileage was 59,158. The VIN was not provided.

While driving the seat belt light came on. About a minute later the radio shut off. Next most of the dash lights came on , the engine would not make power/accelerate, and the braking seemed weak/jerky. Pulled into a parking lot as soon as I could. Now all dash lights were on/blinking and the radio, sunroof, windows etc would not work. Thinking it was an electrical issue I left it running to investigate. Next thing I know the car is overheating even though the gauge isn't showing it. Steam everywhere and the overflow popped the cap off. Shut the car off. Once the car cooled I was able to see what happened. Oil has been dripping on to the alternator from a leak in the valve cover gasket. This killed the alternator which in turn caused the control/braking/acceleration issues one it was on battery only. I'm assuming the fan was not cooling either which resulted in the overheating.

Oil leak from engine valve cover - left (front) side of 3. 3 v6. This is directly above alternator. Eventually alternator fails due to severe oil/dirt contamination. First noticed when battery light comes on at idle, showing charging problem. By then damage is done. Valve cover must be replaced along with alternator or problem will quickly recur. *there is currently a recall for Hyundai veracruz with same engine for the same problem. Sonata is not included, but a quick internet search shows this to be a common, well-known problem for many years.

Intermittent flashing and blinking dashboard and exterior light while turn signal or wipers are engaged after this incident happens the battery is drained of power. Battery test full load and alternator test good. The battery is wearing down because of this malfunctioning electrical problem. Last night (8/21) something new happened. When I went to start the car I found it dead again; yet the " lights on" indicator light was visible on the dash buy the light switch was in the off position. I have others witness this crazy malfunction over the past 4 months and yet the Hyundai dealership cannot replicate the problem and therefore will not replace the combo switch (as diagnosed by my corner mechanic).