2014 Hyundai Santa Fe acceleration problems

Filed Sep 22, 2025 · Acceleration, Engine · NE

The engine has been running rough for awhile and emissions light came on. My car was having problems accelerating, 2 years ago the light came on but didn’t stay on so the dealer couldn’t diagnose problem.

Filed Aug 28, 2025 · Acceleration, Engine · MA

In relation to this incident, approximately 3,00 miles after an oil change, the engine oil drain plug fell out and caused all oil to leak and cause engine damage. Engine oil change was at approximately 125,000 miles. Drain plug fell out at approximately 128,000 miles. No warning lights or symptoms were present prior to vehicle shutting off and dying while driving. Vehicle was then towed to shop who previously did oil change. Shop confirmed drain plug was missing and oil level was empty. I am the manager of this shop submitting this on behalf of the customer with this vehicle. We are aware of the ongoing concerns in relation to case DP22-003 and would like to submit this information as further evidence for this case

Filed Mar 24, 2025 · Acceleration, Electrical · TN

Loss of acceleration and stuttering when I was trying to get up to speed on the interstate going up a hill. Instantly blinking check engine light. Won't go above 2000rpm or 60mph. P1326 code read glow relay short circuit

Filed Oct 7, 2024 · Acceleration, Engine · IL

I have been notified that I am in need of a new engine due to possible complete engine failure which is on the near horizon. I have the Lambda II V6 3.3L engine. It is knocking, making noises, hesitates to go, feels like it will stall out at all speeds, and is scaring me terribly. My certified local mechanic replaced a part for failed emissions, which cost almost $900. However the check engine light came back on. They stated I must go to Hyundai because they did not believe they could fix the car as it required a new engine. I took it to my Hyundai dealer, where my contact stated yes it should be covered as it was having the issues as have been identified with this engine. He later came back and stated his managers would not let him put through the claim, and said my estimate was now a whole new timing system at a cost of $4600. My car has less than 83,000 miles on it. My previous Hyundai is still running at 200,000 miles, so yes, I take good care of my vehicles. This is an early equipment failure on the part of Hyundai and Kia that they are now owning up to. I drive on busy 4 lane local roads, and I am afraid of this engine failure. Also, when I did take my Hyundai into the dealership, they did not have the ABS part needed for the recall. I was told it would be in within a couple of days. I have not been contacted back by them if it is in and to schedule me an appt. This is a huge failure in itself! I did make a claim to Hyundai Customer Care, that stated it was out of warranty. Today, I have my car at a 3rd automotive mechanic in the area to get a 3rd opinion. He has a minor timing issue code P0018 that emissions still kicked out once I finally got it passed. I am waiting to hear what he has to say regarding my engine with no beforehand knowledge of what I know so far. If my car catches fire or breaks down or seizes up on a busy road, I don't think that will go safely at all. I am very concerned for my safety and that of others.

Filed Apr 18, 2024 · Acceleration, Brakes · CA · crash

1) What component or system failed or malfunctioned, and is it available for inspection upon request? I tried to park in the parking space next to it by making a slight right turn. As soon as I stepped on the brake to park, the car began to rush forward. I noticed again and again that my foot was slamming on the brakes, but the car didn't stop. My car went over the ledge between the parking lot and the store, slammed into the pillar of the building on the left, smashed all the glass in the dance studio, and hit the wall on the right before coming to a stop. It took six seconds from rushing forward to into the store. 2) How was your safety or the safety of others put at risk? I must have been severe injured if the car didn't stop by hitting a right-side wall of the store. And if there were people, I was not able to avoid casualites. 3) Has the problem been reproduced or confirmed by a dealer or independent service center? No, the car was towed and reviewd by car insurance. Car insurance informed that th e car will be total loss. No information about reproducing the issue 4) Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No 5) Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No, that was suddenly occured 6) Request: I want the federal safety agency to investigate my car of sudden unintended acceleration. I would like to get EDR, X-ray of PCB board of electrical central unit(a.k.a ECU) managing brake and accelerator and car manufacturer's reliability sign-off report of the ECU board. I have a security footage taking the accident moment. I failed to upload the video. If you want, please let me know. Will send the video file with the federal safety agency.

Filed Mar 9, 2024 · Acceleration, Engine · CT

Same issue with my Santa Fe Sport with the engine burning oil. It left me stranded on a back road up hill when it just slowly stopped accelerating and shut off. I had it towed to Hyundai dealership who wanted me to purchase a brand new engine. After talking to a friend who is a mechanic he told me about the lawsuit going on. I confronted Hyundai with this new information I had gotten. I was able to get the engine replace but I’m appalled at Hyundais sketchy way of trying to bypass this. Had not for my friend told me then I would have paid for a new engine! Dealership kept my vehicle for 4 months because they were out of stock in engines due to the amount of vehicles having the same issue! Wow now the truth unfolds. Shortly after getting the car back the check engine light came on. When reversing the vehicle would buck and seem like it wanted to stall out. Autozone hooked up computer and said torque converter code showed. Autozone said if I just had my engine replaced then the dealership didn’t install it right or broke something during the process. I took it back to Hyundai and they verified converter code and said I needed a new transmission! Prior to the engine issue this car NEVER had problems. The second the engine was replaced everything went wrong! Seems very sketchy. The car started losing power when driving. I was on the highway and it would not accelerate. I was terrified I was going to get hit by all the other vehicles. Cars were dodging me and slamming on breaks and honking horns. I managed to make my way to pull over. Got the transmission replaced like I was told and the converter replaced. Car is still doing the same thing. Hyundai said I needed converter replaced AGAIN two months after they replaced it. Now everyone at Hyundai was fired… wonder why. Now I took it back to Hyundai again, car has not been driven in over a year. Now they are saying no issue with converter it’s the transmission! Hyundai needs to be out of business. They put us in danger!

Filed Jan 21, 2024 · Acceleration · PA

Check engine light came on and was blinking. Had to get it towed. There is an engine recall on my vehicle. Full diagnostics test was run showing faulty engine due to the engine recall.

Filed Jul 13, 2023 · Acceleration, Engine · CA

Car not shifting correctly. No power. Could not gain speed to merge into traffic. Was intermittent for months finally the engine light came on. My mechanics diagnostic showed it was the turbo charger. There is a service bulletin 22-22-EM-004H

Filed Jul 13, 2023 · Acceleration, Fuel system · CA

Car would not shift. Could not increase speed. This occurred intermittently and gradually got worse

Filed Jun 13, 2023 · Acceleration, Electrical · FL

Hi I'm in the car with my granddaughter 9 years old We will ready to visit my oldest son his daughter my 3rd grandchild 9 months old.my 9 year old granddaughter we were on I75 north ready to change lanes into the right slow lane as I am ready to merge onto exit 275 Ramp Land o lakes. I notice my rpm numbers are at zero, my SUV was losing speed, I had a green 18 wheeler tractor trailer exactly on my back end of my Hyundai Santa fe sport 2014, exactly on top of us. I can see the grill count bugs on it. My granddaughter was so upset, crying, panicky afraid to get hit by the cars, trucks,staying stranded.myquick thinking I kept my foot on the gas gave it all I could manage to get my SUV on the triangle safe spot in front of the sign exit 275. Once I took my foot slowly off the gas I notice all of the components were locking up shutting down slowly the lights just dimming into darkness nothing nothing was on as if she just shut down to sleep. It was very scary I am also suffering anxiety flashback what if I didn't think to get out of the tractor trailers way. My god my granddaughter I would have been hit slamed hard or pushed into on coming traffic or teadbone into the divider or over the slope. I dont feel safe my suv. That truck was not stopping he was pushing his way.i am devastated. I paid in full my suv in 2yrs under the 4 1/2 yrs. I bought my suv.from ford dealer Tampa fl.paid infull under a new steering columns has to be replaced? After I heard the clicking sound and I was shown a little tool was going to be put in. I said no a new steering column has to be replace due to safety. the Service tech who put my steering column also broke my power auto seat driver Side. Chair still pops out the electric left side button for lumbar, heat safetychair adjusting. I was told the recall took care of the chemical liquid brake fluid component quick fix I told the dealer about my age lights,traction, slope lights emergency brake lights on. road ranger can smell chemical burn