2008 Hyundai Sonata: engine knocking or ticking

Filed Nov 29, 2021 · Acceleration, Brakes · TX · crash · 1 injury

I put the car in reverse while parked in a parking lot, when I put the car in reverse, the car took off at a high rate of speed striking one vehicle and continued at a high speed in reverse about 20 or 30 feet also hitting a return cart station, knocking it over and the car still proceeded to crash into a large parked pickup truck causing significant damage to the truck and also my vehicle. The brakes would not stop the car. The car finally stopped after the hard impact with the truck. My car has been deemed a total by my insurance.

Filed Mar 31, 2019 · Electrical, Engine · 152,800 miles · TX · 1 injury

2008 hyundai sonata 6cyl dohc 3.3l / 152812 water pump went out. Replaced it. Then water ended up in the oil that got into the lifters. Ended up getting another motor. Then my A/C stopped working (didn't blow cool or cold air). Changed oil and oil filter myself along with the oil sensor ( connected to oil filter spot) that was leaking bad as long as the car was running.I was driving on the interstate, in front of a loaded 18 wheeler, driving 75 then my car jerked real hard then dropped down to 40. I had to pull over illegally to keep from getting hit by the truck. As I was catching my breath I turned the car off. When I started it back up it made a weird tick noise. Haven't heard that noise since. When I pulled off it hesitated to change gears from 2 to 3. It finally changed and did not come out of 3rd. Got it towed home. Had my moms boyfriend to check the transmission. He drove it and it was fine. Next morning started car and it sounded like a vacuum cleaner. (low volume) finally it went away. When I headed to work, it hesitated at first. The vacuum noise came back and was louder. Then I sped up to 50, it hard jerked again, and stayed in 3rd gear. As I went further loss power in inside lane of highway and car was smoking under the hood. Like it didn't know I was pushing the gas pedal. Started shaking at around 20 miles an hour. Pulled over and check engine light came on. Called a friend to pull me back home. It was reversing fine but would not go forward. So I changed the accelerator pedal sensor (whole pedal) that wasn't the problem. So then I changed the entire fuel pump/ injector. Still have all parts by the way. That wasn't the problem either. Put it on the machine and it gave a code for ECM and oxygen sensor. Esc light came on as well as TPMS, when I started the car. I could move forward but it was like I wasn't. This all started in february 2019

Filed Jan 28, 2019 · Engine · 174,000 miles · CA

I purchased this vehicle from a small car dealership, when purchased the vehicle had a pretty high mileage however when test drived no service lights came on and the car ran smoothly. After four months of owning the car with only around 2k miles added to it, while I was driving down the freeway a knocking noise suddenly became apparent and the check engine light came on, I pulled over as soon as possible since there was visible smoke coming out of the hood of the vehicle.

Filed Dec 6, 2018 · Engine · 77,000 miles · PA

The engine out of nowhere began to knock (engine knock) and nobody from any point of management will help me out with this problem, even though it their engine and they will not take responsibilty for it, not help or anything was provided, the vehicle had began knocking after I had started it up one day and began driving it, I noticed the warmer the engine got, the louder it got, I took it to 2 different dealers and one of them being a hyundai dealership and one being a kia, both said the same thing

Filed Oct 16, 2018 · Engine · 125,500 miles · TX · fire

Tl* the contact owned a 2008 hyundai sonata. The contact stated that the check engine indicator illuminated. The following day, the vehicle started making a knocking and rattling noise, similar to metal on metal, while driving 40 MPH. The contact pulled the vehicle over to the side of the road and noticed flames under the hood near the engine. The fire was extinguished by the fire department. There were no injuries and a police report was not filed. The vehicle was totaled and towed to a junk yard. The dealer and manufacturer were not contacted. The vehicle was not diagnosed. The failure mileage was 125,500.

Filed Jan 1, 2018 · 106,000 miles · CA · fire

First there was a knocking sound and the car would drag to accelerate. This lasted 3 days each day it gradually getting worse. By the third day I was driving the knocking sound grew louder, something fell off the bottom of the car the check engine light came on, the car completely stopped driving, then up under the hood it was a fire and under the front part of the car.

Filed Nov 16, 2017 · Electrical, Engine · 35 miles · TX

I have a 2008 hyundai sonata and I have well maintained my vehicle but one day I hear a small ticking noise I took it to the dealership and they said it was the spark plugs so I got the full tune up. The very next day the car didnt want to start. Ive tried everything but nothing seems to work. I also did research and a few others were having the same exact symptoms in their cars. Also lots of people were complaining about the 2011 hyundai sonatas also. I also found out that they use the same engines for the 2008 I think we alll should get a fair play

Filed Aug 28, 2017 · Engine · 98,500 miles · CA

This issue effects 2.4 liter gasoline direct injection engine model sonatas. Metallic debris may not have been fully removed during manufacturing of the engine crankshaft. If the debris was not completely removed, oil flow may be restricted through the connecting rod bearings, causing connecting rod damage. A worn connecting rod bearing will produce a metallic, cyclic knocking noise from the engine and possible engine failure resulting in the need to rebuild or replace engine. My engine first failed out in october of 2016 and caused me to require an engine replacement. In august 2017 that same engine had the exact same issue happen to it. This has been 2 of the 2.4 cyl I-4 engines having the exact same issue on the exact same care with around the same mileage on both engines. There have been many various complaints reported all over the internet effecting this engine. Additionally, there is an open recall by hyundai for the 2011 hyundai sonata for the exact same issue because the 2011 sonata used the exact same engines that are in the 2008 sonata. The link for that recall is here: the federal safety agency campaign number: 15v568000 url:

Filed Apr 8, 2017 · Engine, Transmission · 116,630 miles · MN

Loud knocking sound from under hood. Gets louder as engine heats. Unsafe to drive

Filed Dec 26, 2016 · Engine · 179,000 miles · AL

The engine started knocking loudly, slowing down and idling rough. I pulled over and the car would not remain running in idle. I had the vehicle towed and inspected at the house and the valves are bad. It happened without any warning, lights or gauges coming on or prior noise. I was driving around 45-50 to work when this happened out of the blue. 179,000 miles on the car and regular oil changes since I had the vehicle. I purchase the vehicle with 60,000 miles.

Filed Jul 24, 2016 · Airbags, Engine · 131,189 miles · FL

On july 19, 2016 at or about 1500 hours, I was driving to the store to get some food, on the way out my apartment complex, I believe my hyundai sonata 2008 allowed me to go about two blocks down from where I live to shut off in the street right before I approached the stop sign. I also remember hearing two weeks prior to my vehicle shut off, while driving I heard this knocking sound in my engine, I thought it was the new starter that was replaced but then a day or two later it stop making that knocking noise. I called around to find answers no one had a clue to what was going on with this vehicle. Everything was working just fine until july 16, 2016. I had this vehicle since april 17, 2009 and I can't not believe this vehicle has a major issue like this at point and time. I could deal with regular maintenance services but on this flip sided coin; not having a vehicle to crank or one that just shuts off with out any engine lights or warning is a complete mystery for me, but I think it is time hyundai give me some answers to this problem... Lets also be clear there was oil and gas in the vehicle at this time of vehicle in motion shut off.

Filed Sep 28, 2015 · Engine · OH

I read your recall today re: the same make/model of car that I own. My hyndai sonata is a 2008. I am experiencing exactly the same issues listed in the recall since the beginning of 2015. I have spent more money than I have trying to fix this car (which I am financing currently). The engine light has been on, there is a knocking noise coming from the engine and the car will not "get up and go" and feels as if it may stall out upon taking off forward after coming to a stop. Loud knocking noise coming from under the hood when you step on the gas. They only way to get rid of the noise is to let off of the gas.