2019 HYUNDAI TUCSON Fuelpropulsion System Problems

Oil extremely hot and burnt to oil stick. Running really hot. Dangerous possible fire hazard

Low oil, burnt oil on dip stick, engine running dangerous hot, lights on on dash, engine knocking

The vehicle is experiencing excessive oil consumption and increasingly severe engine performance symptoms. The oil level drops rapidly between changes, but the loss is not due to external leaks. The engine burns oil internally, causing residue buildup and damage to other components — specifically the intake manifold and catalytic converter, which the dealer has now recommended replacing. These issues align with the symptoms addressed in Hyundai Campaign 966 (Engine Monitoring / Knock Sensor Detection System), which is intended to detect early bearing wear and related oil consumption defects. However, the dealership refused to perform the required campaign diagnostics (bearing inspection, KSDS verification, and oil-consumption test) without charging a diagnostic fee. Even though the engine has not yet fully failed or entered limp mode, the excessive oil consumption is already causing secondary damage to emissions and intake components. If left unresolved, this can escalate to engine seizure, catalytic converter overheating, or...

While almost at a complete stop in the process of putting my 2019 Hyundai Tucson in park at my friends home to drop her off, the car involuntarily surged/accelerated forward over a cement curbing and landscaping timber and slide down a small incline into a tree and landscaping boulder! After looking on line concerning the malfunction it seems there are abundant claims from other 2017-2019 Hyundai Tucson owners that have experienced this exact mechanical defect under this frightening description of a surge or acceleration out of the drivers control! It's the craziest, scariest thing ever. We have taken the car in for a recall concerning the check engine light regarding the catalytic converter prior to this incident. The car is well cared for and maintained and has never been in any accident.

The vehicle was brought in just after a month of owning it due to it was accelerating slow and driving bad salesmans sent it to Hyundai dealership for diagnosis and it came back that the motor needed to be replaced due to recall vehicle was in repair shop for over 3 months to get a new motor once returned the very next day the check engine light came back on so I brung it back to the Hyundai dealership per Hub City's salesmans instruction to have vehicle diagnosis again. Hyundai advised that the vehicle needed a catalyst converter among other codes detected on vehicle.

On a busy highway, my car broke down. It was due to the rod bearings, specifically, the Hyundai Theta "extended warranty"/recall issue, or "recall" issue. There is currently a class action lawsuit against Hyundai. I had the car towed to Hallmark Hyundai in Nashville, TN. I, however, live in Louisville, KY and I was making a road trip to Nashville, TN. I was told by the Service Rep in Nashville that they couldn't provide me with a loaner vehicle because I would be driving it, back home, out of state to Louisville, KY. I paid for a rental car out-of-pocket. Hyundai Corporate told me it would take 60 days to get reimbursed. I picked up the car at the beginning of July, 2025, after the engine was replaced by Hallmark Hyundai. I was told by Hallmark Hyundai that a service employee performed a test drive but it was immediately noticeable...

on [XXX], we received the Tucson back from dealer from a complete engine replacement due to recall. On [XXX], our college son was returning to school from visiting a friend. He said he thought the car sounded a little different. There were no engine light warnings, so he didn't think much of it. About an hour into the trip, he started to smell gas, a few minutes later he started to smell smoke and saw smoke coming into the vehicle through the consoles. He looked behind him and saw a trail of fire and smoke. He decided to pull over but the brakes FAILED. He went into the median, applied the emergency brake and waited until the car slowed down. He was able to grab his phone that had fallen beneath his seat from driving onto the median. Once he was out of the vehicle, he could definitely see the...

formance exhaust. I bought catalytic conVerter that they told me to buy for 600+ dollars and took it to child's shop they told me that the catalytic converter isnt clogged nor is it affecting my car and provided me with these codes about the camshaft and crankshaft (P0017,P000B, P000A) which they stated hyundai should have fixed under the engine warranty because it was a recall on these engines on this year car. They stated that even if fixed the converter my car would still perform the same and 3 other mechanics have said the same and stated hyundai would have to fix it. After oil changes the oil consumption in my car is constantly getting oil before its even due for another oil change. I have already paid so much just by having people look at it, buying oil, parts, and etc. i am furious to know that i was...

Lost power when accelerating up highway hills, it coded P0420, catalytic converter on Bank 1 is not operating as efficiently as it should. This code is often caused by issues with the fuel or exhaust systems, which can result in insufficient oxygen leaving the catalytic converter. Hyundai dealer changed the catalytic converter July 2023, 1 yr to the day my vehicle did the same thing and had another Hyundai dealer change the catalytic converter to which 1 week later my car is still showing the code and is still jolting as I try to pick up speed.

On 05/11/2024, I accelerated onto the freeway at which point my vehicle would no longer go past 50 mph with the pedal to the floor. I had my two small children in the car at the time. It was dangerous as cars around us were going 65+ mph. The check engine light started blinking when this was occurring. Prior to that the check engine light had been on because the dealership claimed they didn’t know why it was triggering and that they have to take my engine out and replace it just to explore the issue. I don’t have the money for that. It has a knocking sound, a pungent fuel smell and it still won’t accelerate. I only have 85k miles on the car.

I was just entering the expressway about 70 miles from my home, and the engine light came on in the vehicle. I could not accelerate to more than 52 mph even with the pedal to the floor. I had to drive home in the right-hand lane with my hazards on. This was the second time this happened within a month. The first time the dealer replaced the knock sensor after one week. It ran fine for 3 weeks and then the exact same thing happened in exactly the same place 70 miles from my home. My car has been in the shop for a week now, and they still don't know what the issue is, even though they are communicating with Hyundai. I see a pattern here after reading so many similar complaints from other people owning a Hyundai Tucson.

I was driving on the highway. The engine began making a ticking noise that momentarily went away and then quickly got louder. I saw white smoke out of the back, pulled over, and then saw black smoke from the front. The check engine light only momentarily came out AFTER the white smoke was visible and I was actively pulling over. I ran out of the car, and turned to look only to see a fire under the engine bay. I did not have a collision nor hit anything on the road. Engine had full synthetic oil in it, and the oil was changed less than 10,000 miles precious. (Also checked oil level/condition the week before). The car went from driving fine, to entirely engulfed in flames within 2-4 minutes. Maine state police: case# 245000657 The vehicle has not been inspected by the insurance company yet. The report will be sent...

Replaced catalytic converter been to the shop twice. It keeps having reoccurring issue of not wanting to accelerate, won’t go over 54, wont go over 2000 rpm, stalls and misfires. My neighbor has same model and year and just had to replace catalytic converter as well.

Car caught fire on the expressway.

*Inside of car smelt like urine upon start. Car went into limp mode. First trip to dealership, catalytic converter was replaced. After the 6th time to dealership for same issue, manufacture approved engine replacement. *The car went into limp mode which posed a safety risk to our family as well as other vehicles on the road. This happened twice while on the freeway and we could have been rear-ended due to unexpected reduced speed. This also happened twice while turning with oncoming traffic approaching. *The problem was reproduced as this happened 6 times before the manufacture would approve an engine replacement. *The dealership replaced all the fuel injectors. No change engine went into limp mode P1326 (failure code). *The dealership installed a new short block engine. *The engine smelling like urine appears to be the first symptom (catalytic converter failure and replaced). When the car went into limp mode the...

2019 Hyundai Tucson I purchased 13 months ago with a mere 5, 241 miles on it., (Currently 29k mi) from Bert Ogden Subaru/Mazda in Edinburg, TX. On 6/26/22 it Started Shaking violently then "rodknocking" and finally failing in middle of major, high-traffic hwy. Near causing accident. NOwarning lights, check engine lights, oil lights, etc. Car was towed to Tipton Ford Hyundai, in Brownsville, TX. As it urns out (through my own research), my vin# falls under a recall issue that was not fixed prior to purchase nor disclosed to me, re:"engine monitoring and logics warning system failure". More importantly, 2) There are several class-action lawsuits underway, one settled, in which Hyundai was found liable for faulty "class II Theta Engines" and a suit involving "GDI NU 2.OL" (same as my vehicle) leading to rod knocking sensor failure, premature worn bearings and even cars catching fire! This is a no-brainer situation...

MY 2019 TUCSON HAS BEEN GETTING HORRIBLE GAS MILEAGE AND ALSO MAKING SOME STRANGE NOISES THAT I'M UNSURE OF WHAT THEY ARE. IT'S ALSO ACTING LIKE IT HAS NO POWER INSTALLING ON A PRETTY REGULAR BASIS SINCE THE DEALERSHIP HAS STATED NOTHING'S WRONG WITH IT AND MY VEHICLE HEALTH REPORT CONTINUES TO STATE NOTHING IS WRONG I DECIDED TO GET A OBD2 ADAPTER TO PLACE ON IT SO I COULD SEE WHAT WAS HAPPENING. WHILE THE VEHICLE IS RUNNING AT IDLE DOESN'T MATTER IF IT IS COLD OR WARM THE THROTTLE BODY SENSOR DOES NOT GO UNDER A 10 SO IT'S OBVIOUSLY STICKING I DON'T KNOW IF IT IS DEFECTIVE OR IF IT'S BEEN LIKE THAT FOR SOME TIME BUT IF THE THROTTLE BODY IS STUCK THEN THAT'S GOING TO CAUSE IT TO STALL THAT'S GOING TO MAKE IT BURN MORE GAS THAT'S GOING TO MAKE IT RUN PRETTY CRAPPY...

WHEN MERGING INTO INTERSTATE CAR IS HESITATING NOT PICKING UP SPEED LIKE IT SHOULD. CARS MERGING BEHIND ME HAVE TO COME AROUND ME AND PASS BECAUSE I AM NOT PICKING UP SPEED FAST ENOUGH. *TR

WHEN YOU STEP ON THE ACCELERATOR, SOMETIMES THE VEHICLE STOPS AND TAKES A COUPLE OF SECONDS TO CONTINUE RUNNING. I'VE FACED A COUPLE OF INSTANCES WERE AT A CROSSROAD VEHICLES ARE COMING TOWARDS ME, AND THE CAR STALLS AND TAKES A WHILE TO START MOVING. I'VE BEEN TOLD BY THE MECHANIC CAR DEALER THAT THIS IS NORMAL IN THIS NEW ACCELERATING SYSTEM. IT'S CAN OF SCARY AND YOU NEED TO ACCELERATE AND GET STUCK IN THE MIDDLE OF THE ROAD. MINE IS A HYUNDAI 2019 TUCSON.

I PURCHASED NEW 2019 HYUNDAI TUSCAN ULTIMATE THIS MAY. IN THE FIRST WEEK THE SERVICE ENGINE LIGHT LID UP. I TOOK IT TO DEALER AND 2 DAYS LATER THE VEHICLE WAS RETURNED AS FIXED. BASED ON DEALER'S RESOLUTIONS IT WAS EVAP LEAK CODE AND THEY JUST HAD TO REPLACE THE CAP. WEEK LATER THE SIGN CAME BACK AGAIN AND I DROPPED OFF VEHICLE FOR ANOTHER 4 DAYS, DEALER STATED IT WAS SAME CODE AGAIN AND IT WONT HAPPEN AGAIN. I TOOK IT BACK AND TWO WEEK LATER THE LIGHT CAME BACK ON AGAIN AND DISAPPEARED AFTER THREE DAY. THE FOURTH TIME LIGHT CAME BACK AGAIN AND I WILL BE DROPPING OFF THE VEHICLE AGAIN. THE DEALER IS STILL UNABLE TO FIND THE CAUSE AND UNABLE TO FIX THE ISSUE. BASED ON THE DISCUSSION WITH SERVICE MANAGER, IT IS MINOR PROBLEM FOR THEM BUT THE ISSUE IS KEEP COMING BACK AND...

VEHICLE WAS IN MOTION ON I20/459 ENTRY RAMP IN BIRMINGHAM, AL. VEHICLE STOPPED AND CUT OFF COMPLETELY IN THE MIDDLE OF THE BUSY INTERSTATE. ACCELERATION SLOWED UNTIL VEHICLE DIED AND ALL ERROR LIGHTS APPEARED AND FLASHED ON DASH WITH A "SERVICE NOW" ALERT. PLACED THE VEHICLE IN PARK, AND TURNED THE SWITCH TWICE BEFORE IT WOULD CRANK AGAIN. UPON STARTING- THE SAME "SERVICE NOW" LIGHT APPEARED AND CAR WAS ABLE TO DRIVE. "SERVICE NOW" LIGHT VANISHED ABOUT 10 SECONDS AFTER VEHICLE WAS DRIVING AGAIN.

UNCONTROLLED SPEEDING HARD IMPACT ON BUMP VERY LOW SUSPENSION SYSTEM HIGHER MPG THAN ADVERTISED