2016 Hyundai Tucson

I had my top engine block (not sure why not a full engine replacement) replaced under warranty June 2023. Shortly after the fix my AC unit stopped working. Once I got my AC unit fixed, about 1.5 months after my engine was not performing. My car would not turn over and when it did, it was in limp mode and would not run properly. I had it towed to dealership who could not find the issue until after they took out of the bay and went to move it, it wouldn't start. They replaced the crankshaft positioning sensor and it wasn't covered under the extended warranty. The top engine block only has 10k warranty which is fast approaching. Took car home and when accelerated past 60 car shakes and when i brake car shakes. Now car cabin smells of gas. All cars with KM are having multiple issues. Dealership not calling back regarding gas issue and has not responded to if they touched my tires. Local Mechanic said all my wheels were unbalanced.

At certain times my car doesn’t want to start. Like when there were carburetors in cars way back in the day, I literally have to pump the gas to make it start. And then once it does, it’s very hesitant to go on the road like it has no power. And then another time my car totally just shut down in the middle of traffic and would barely go, like it had no speed ability. This happens often my car is not under warranty. And it is not included in the recall with some kind of fuel pump situation. I had a mechanic look at it. He seems to think it’s something to do with the fuel pump. But unfortunately, I cannot afford the cost of repairing that, and he didn’t seem quite certain as well.

Vehicle has 101k miles on it, just over the 100k Hyundai warranty. Vehicle began shaking and sputtering while driving, and check engine light illuminated, I was able to get it to a local mechanic. Mechanic said it had multiple codes (P300, P302, and P304). They did a compression test and said the engine has internal failure and should be replaced; quoted 13k to replace. I had it towed to the Hyundai dealership where I bought it, and they are investigating it. The service manager told me even with perfect maintenance records, Hyundai will likely deny a goodwill claim to replace the engine. Looking at all these engine failure complaints for this year model, it is clear this is an ongoing problem and Hyundai needs to issue a recall.

There are four safety concerns I have with the 2016 Hyundai Tuscon: 1.) The Check Oil light failed to illuminate indicating the need for more oil. 2.) The excessive oil consumption may have caused my catalytic converter to misfire and melt. 3.) The Check Engine light failed to illuminate when my catalytic converter misfired and melted. 4.) The Knock Sensor (if it is bad), which is installed on my vehicle, could fail and not warn me about any engine problems. On 7/3/23, my vehicle was having a difficult time accelerating up a mountain. My brother and I also heard a rattling noise, so my brother drove to a safe place. I had my vehicle towed to a local auto service garage, where I was told the catalytic converter melted due to misfiring and that I needed to replace it. On 7/5/23, I had my vehicle towed to the closest Hyundai Dealership, where they confirmed that the vehicle's catalytic converter was melted due to misfiring. After researching the causes catalytic converters misfiring, I read several complaints about the said vehicle's oil consumption and poor acceleration. I suspect there might be a connection to the catalytic converter misfiring and melting. Incidentally, I have had two other incidents where my vehicle lacked acceleration and started shaking. One occurred on 12/28/22, while I was entering an intersection. The other happened on 4/1/23, while I was attempting to pass another vehicle. All three incidents could've ended tragically. The Check Engine light did illuminate during two of the incidents, but not the incident that occurred on 7/3/23. Additionally, the catalytic converter was previously tested on 12/31/22 and it didn't have any bad codes. Sparkplugs were also replaced on 12/31/22, and a 3-Step Fuel System Cleaning was done on 6/12/23. The Check Oil light only illuminated once since I have owned the vehicle, but failed to illuminate when my oil was getting low in between oil changes. My SUV is still in service waiting for a Catalytic Converter.

The Hyundai engine is defective and consumes oil at a rate of 5 quarts every 3,000 miles. It ran completely out of oil and left me stranded on the highway in rush hour traffic 3 hours from home. Several people were put at risk! No warning lights; no check engine and no oil light until the car stalled completely. I was able to add oil and get the car in limp mode to the dealership where they ran oil consumption tests, and it failed due to being 106k miles. The car was returned to me and I was told to watch the oil. Weeks later the car broke down again in the middle of the road. The spark plug tips were burnt completely off and there was a dime sized hole in a valve. Multiple mechanics outside of Hyundai agree that both the plugs and the valve damage are a direct result of the defective engine. Again, Hyundai has denied all claims and refuses to acknowledge any wrongdoing on their part, despite the amount of claims, lawsuits and upset customers stacked against them.

There have been several incidents where my Hyundai Tucson could have caused a major accident with another vehicle. The first time, I was driving down a hill and I barely could control the car. It began to jerk and I had to gradually steer it into another lane out of traffic. Another time, the oil just began to spout out from under the car while I was driving. It's still difficult keeping oil in the car, but the mechanic says there's no leak. Lastly. my engine light has been blinking off and on , and the mechanic changed the spark plugs and a number 2 coil, but I am still having engine problems. I was given the engine code P1326 from their diagnosis. Since purchasing the car with only about 43000 miles, I have had to replace the transmission, catalytic converter. get a tune up, spark plugs and a coil, and get the drivers side window fixed. All of this has come to over $5000, and now I'm told the engine needs to be replaced. Something about the camshaft.

Car is burning engine oil at the rate of one quart a week after normal city driving. Usual and frquent oil changes and almost dry when going in for every 3000 miles oil change. Took to a private (non-Hyndai) mechanic shop Christian brothers in Colorado and told that perhaps that my car had some engine damage or problems due to burn of engine oil and not leaking. Next car began to have engine check light go on and off with never staying on for more than one day. Called Hyundai dealership and told that light had to be on solid and complete for inspection. This week car starting misfiring and dragging when acclerating. Black smoke coming out of exhaust and check engine light illuminated and stayed on. Could not get into delaership until November of 2022 and currently September of 2022. Once again took car to Christian Brothers for diagnostics and told car was full of carbon and misfiring and told unsafe to drive and would not work on car as they believed that engine was damaged/defective and needed to be replaced. Made appointment with PLanet Hyundai in Golden, Colorado where I purchased the car brand new. October 20th is my appointment and car will need to be towed. Undriveable and needing car to work to see my autistic clients in their homes. Final event with engine and misfiring happened at 104,000 just past the warranty time even though no one would look at the car despite my former complaints and concerns prior to the warranty expiration.