Engine Knocking Noise Problems of Kia Motor Optima - part 2

Kia Motor Optima owners have reported 118 problems related to engine knocking noise (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Kia Motor Optima based on all problems reported for the Optima.

36 Engine Knocking Noise problem of the 2011 Kia Motor Optima

Failure Date: 10/27/2019

I was on I 95 yesterday in the evening heading home and all of sudden my car went to shaking in the engine light was blinking on and off I pulled over to the side of the road to stop the car as I pulled over on the side of the road I sat in the car while the car was still running part in the car cut off by itself end it all the sudden started making a knocking sound once I turn the car back on.

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37 Engine Knocking Noise problem of the 2014 Kia Motor Optima

Failure Date: 10/25/2019

Tl-the contact owns a 2014 kia Optima. The contact stated that while driving at 65 mph, the check engine warning started to flash and the vehicle lost motive power. The contact stated that there was a knocking sound coming from the engine. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The vehicle was not included in NHTSA campaign number: 17v224000 (engine and engine cooling). Neither the dealer nor the manufacturer were contacted or notified of the failure. The approximate failure mileage was 100,000. Ah.

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38 Engine Knocking Noise problem of the 2016 Kia Motor Optima

Failure Date: 10/05/2019

I am starting to experience engine trouble with my 2016 kia Optima. I purchased the vehicle new with 0 miles. My issue stated on Friday evening, September 27th when the check engine light came on. Immediately, I took the vehicle to the dealership Saturday morning, September 28th. The tech person at kia country of savannah hook the computer device to find the issue. He stated it was due to air flow sensor. I advised him I would be traveling to port canaveral, FL in the early morning for a cruise. He said the vehicle would be fine and I would lose a mile or two on fuel economy. Wth! he disengaged the engine warning signal then says "if it come back on, you will be okay. " well, the next morning, I drove my car to orlando for an overnight stay then on to port canaveral the following Monday. Of course, I drove around orlando area. The check engine come on, again, then went off on its own. Here is where things really went downhill. I made it back to savannah during a bad thunderstorm. The car started to stutter like it was about to shut off. I managed to get the car home and parked it until Monday morning. Upon driving to the dealership, I lost all acceleration power and coast for about an half mile to the service center. By this time, I am about to explode with anger. My car has been in the shop since Monday morning, I am driving a rental car paid by the dealership. Finally, yesterday, I was told the issue was the wiring harness that was covered by a recall. I brought the car in them months ago about some knocking noises that I heard. Only to be told, I was hearing things. After reading reviews, I am concerned that issue is going to grow into a major one. The car has only 36,000 miles.

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39 Engine Knocking Noise problem of the 2013 Kia Motor Optima

Failure Date: 10/01/2019

Tl-the contact owns a 2013 kia Optima. The contact stated that while exiting the highway and passing another vehicle all of the power was lost to the vehicle. The contact was able to turn into a parking lot. The whole dashboard was illuminated and the contact tried to restart the vehicle but smelled a burning smell. The contact quickly evacuated the vehicle along with her disabled daughter. There were no immediate flames showing from the vehicle. A tow truck driver came and noticed the burning smell but was able to tow the vehicle to the dealer dutch miller kia of charleston, wv 335 maccorkle Ave sw, charleston, wv 25303 (855) 739-5369. The vehicle was towed to the dealer last night. The dealer called the contact this morning and she gave them the past history of repairs. The vehicle had been in for a past recall repair for the engine several times . Back in may 2019 the contact called the manufacturer since she was concerned about a knocking noise that was getting louder and louder. The manufacturer directed the dealer to put a device to quite the knocking noise. The device would enable the vehicle to be driven at 35 mph should the engine malfunction for an unknown distance. The failure mileage wads 116,000. Tf.

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40 Engine Knocking Noise problem of the 2011 Kia Motor Optima

Failure Date: 09/17/2019

Tl- the contact owns a 2011 kia Optima. The contact stated that while driving, a knocking noise occurred that was coming from the engine. The contact costed over to the side of the road and noticed smoke was coming from the engine compartment. The vehicle was towed to the contact residence and was not taken to a dealer or an independent mechanic for a diagnostic testing. The manufacturer was not made aware of the failure. The approximate failure mileage was 116,000. Aw.

41 Engine Knocking Noise problem of the 2011 Kia Motor Optima

Failure Date: 09/10/2019

Driving to work and my car was making a knocking sound. It started to sputter and I was trying to pull over and it just shut off.

42 Engine Knocking Noise problem of the 2012 Kia Motor Optima

Failure Date: 08/31/2019

I was driving yesterday and as I came to a red light the car died and all the dash lights came on, I was able to start it back and had no problems. Tonight I was in the interstate at about 70-75 mph car lost power and engine made terrible knocking sound.

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43 Engine Knocking Noise problem of the 2013 Kia Motor Optima

Failure Date: 08/26/2019

I own a 2013 kia Optima my car wouldn't start. Then after a few tries it started up. Then it did it again. My car wouldn't start. My car would stall out. Then it started making a knocking noise in the engine. The next day the check engine light went on. My odometer just hit over 100,000 a few weeks before. I made an appt at a kia dealership service dept but it's not until next week. I've only had this car for 3 months. I just purchased it. Now I've learned about the kia recall sc147 & NHTSA recall 17v224000 on bearings that lead to engine seizure & that can lead to metal in the oil. And it causes a knocking noise. I am positive this is what's wrong with my car. I hope the kia dealership will fix my car next week that's the earliest appointment they have. I hope I can get a car loaner.

44 Engine Knocking Noise problem of the 2015 Kia Motor Optima

Failure Date: 08/20/2019

Tl-the contact owns a 2015 kia Optima. While driving at 40 mph, the contact stated that their engine decelerated with no warning. The contact had to call a tow truck. The vehicle then made an abnormal knocking noise. The vehicle was towed to university kia 5105 durham-chapel hill blvd, durham, nc 27707 where the vehicle was diagnosed. The test read that the engine died in reference to metal shavings in the oil. The manufacture was not made aware of the failure. The failure mileage was 104,673. Jw.

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45 Engine Knocking Noise problem of the 2014 Kia Motor Optima

Failure Date: 08/18/2019

While driving 75 mph on interstate I realized my car (it had been set on cruise control) when I tried to accelerate nothing happened realized it had completely shut down. Pulled to shoulder. First time restarting failed second time I started and hit the gas it started up but had a terrible knocking sound and can barely accelerate. Dropped off at kia dealership. It's Sunday so waiting to here back tomorrow.

46 Engine Knocking Noise problem of the 2015 Kia Motor Optima

Failure Date: 07/03/2019

My car is knocking and wont go over like 35mph without shaking and knocking sounds.

47 Engine Knocking Noise problem of the 2013 Kia Motor Optima

Failure Date: 06/28/2019

The motor in my 2013 kia Optima spun a rod bearing on the way to a out of town softball tournament for my daughter the weekend of June 28th thru June 30 2019. My family and I were about 40 miles away from home on the highway when the vehicle started to lose power. We stopped to check the car to see what could be the problem and that's when I heard a knocking noise coming from the motor. At that point I had no choice but to have it towed to a mechanic shop in another city and star where the car still is today. The vehicle has not been started spence the day of break down. (June 28th 2019)the mechanic recommended me to see if there was a recall on the vehicle for this problem and with your VIN lookup tool I was able to find out that the motor does have a recall on it for this very reason. (oil passages may be block due to debris from manufacturer cleaning defect. Causing premature rod bearing wear from not cleaning engine properly before engine assembly). . I never received notice in the mail about a recall on my vehicle nor do I have recall number. The mechanic is willing to fix the entire problem for us but I need to know if I should allow him and will receive reimbursement after paid repairs or would you like me to have it towed to a kia authorized dealer for repairs. Thank you for your help.

48 Engine Knocking Noise problem of the 2012 Kia Motor Optima

Failure Date: 06/15/2019

Engine is making knocking sound. Sounds like piston. It's a 2012 and keeping up with oil changes and tender loving care. It's 7 years old there's no reason the engine should be knocking and turning off in the high way at speed 65 mph with my children in it. I am very mad this should be taken care for free (xxxxxx) parts of this document have been redacted to protect personally identifiable information pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

49 Engine Knocking Noise problem of the 2015 Kia Motor Optima

Failure Date: 06/01/2019

Tl the contact owns a 2015 kia Optima. While the vehicle was in reverse, a knocking noise was heard from the front end of the vehicle. The vehicle was taken to kia atlanta south (770-968-3400, located at 7310 jonesboro rd, morrow, GA 30260), but the failure could not be duplicated. The manufacturer was not made aware of the failure. The failure mileage was approximately 73,000.

50 Engine Knocking Noise problem of the 2013 Kia Motor Optima

Failure Date: 06/01/2019

The cars engine light has been on for over a year. The engine is constantly burning oil even though oil changes are done every 2000 to 3000 miles. The vehicle engine sounds louder every month. The car passed two recall tests at a kia dealership, one for which I paid out of pocket. I was told the engine is burning oil by my mechinic and there should be a recall on my car. The kia dealership cannot explain to me why my car is passing the recall even though it's obvious the car has had an engine problem since I bought it. There is a distinctive knocking sound coming from the engine and you can hear the engine hiccup while the car is turned on, as if were about to brake down.

51 Engine Knocking Noise problem of the 2014 Kia Motor Optima

Failure Date: 05/31/2019

I was driving on the road and noticed my car hesitating to go over 20. Like it was about to cut off my check engine light kept blinking on and off. I took it up to auto zone near me and a code read my rod bearing is defective. I heard a loud knocking noise, it got louder as I drove the car on the road.

52 Engine Knocking Noise problem of the 2016 Kia Motor Optima

Failure Date: 05/19/2019

I just bought this car a month ago and have not been able to work in it as a lyft driver because there is always something wrong with it it's been in the shop more than I've drove it it makes a knocking noise and I'm not safe in the vehicle I did a history check on it and come to find out their are a bunch of recalls on it can anyone help me please?I was driving on a city street and highways.

53 Engine Knocking Noise problem of the 2013 Kia Motor Optima

Failure Date: 04/18/2019

My car engine shut down after making a left turn, which I almost got rear ended by traffic turning right from a faster street. I had to place the car in park to restart the engine after a couple tries. I noticed my engine light and other lights on dash turned red. After a couple tries the engine started and I seen my oil light also so I thought maybe my oil was bad so I went and had an oil change done and after getting that completed was driving home and my engine has this knocking noise now and it seemed to get worse. The technician stated that the engine light showed that the overhead cam sensor was the cause of the light. But after changing the oil the light went out. Technician stated the car was a quart low before the oil was changed out. I do not understand why this happened because I used the best oil and changed my oil on a regular basis and have records to show if needed.

54 Engine Knocking Noise problem of the 2015 Kia Motor Optima

Failure Date: 04/15/2019

Every since I bought my 2015 kia Optima from the kia dealership in woodstock GA I have noticed a strange smell like burning oil in the engine I could smell it inside my vehicle while driving as well . Also the engine always seemed to be running hot and certain days it took numerous trys to make the car start . Also my lights would constantly flicker inside the vechile . I have payed off my kia and sold it now but I received a letter stating I would be be eligible for somekind of compensation even after it was sold I'd like more information on this I lost the first letter I was sent so please let me know all my options here thank u and god bless my my car was a 2015 kia Optima I began financing the vechile through ally on 12/04/2018 it was paid off 10/31/2019 also I kept hearing a knocking sound the whole time I drove my vehicle comeing from my engine as well as a burning smell while driving ## #vpic# 1 - check digit (9th position) does not calculate properly #vpic#.

55 Engine Knocking Noise problem of the 2014 Kia Motor Optima

Failure Date: 03/30/2019

The contact owns a 2014 kia Optima. The contact stated that while driving at an undisclosed speed, a knocking sound was present coming from the engine. The vehicle stalled without warning. The vehicle was not taken to be diagnosed nor repaired. Shicker Ford located at (3300 s. Kingshighway, st. Louis, mo 63139, (314) 664-4100) was notified of the failure. The manufacturer was not notified of the failure. The VIN was not available. The failure mileage was 95,000.

56 Engine Knocking Noise problem of the 2010 Kia Motor Optima

Failure Date: 03/16/2019

Driving car just shut off in heavy traffic on rd average speed 40 no warning lights came on restarted stalled all the way home and huge knocking sound.

See all problems of the 2010 Kia Motor Optima 🔎.

57 Engine Knocking Noise problem of the 2011 Kia Motor Optima

Failure Date: 03/10/2019

Tl the contact owns a 2011 kia Optima. In 2017, the vehicle was repaired per an unknown recall regarding metal debris that was left in the engine, which constricted oil flow to the vital parts of the engine. While driving, the oil light illuminated and there was a pinging and knocking sound coming from the engine. The contact had the vehicle's oil changed, but the noise continued and the vehicle stalled. The contact took the vehicle to an independent mechanic who diagnosed that the engine needed to be replaced. The dealer and the manufacturer had not been contacted. The failure mileage was 130,000.

58 Engine Knocking Noise problem of the 2016 Kia Motor Optima

Failure Date: 02/25/2019

Tl the contact owns a 2016 kia Optima. The contact stated that the engine made an abnormal knocking sound and the vehicle stalled. In addition, the check engine indicator illuminated. The failures occurred without warning. On four occasions, the vehicle was towed and driven to sunset kia of venice (179 u. S. 41 bypass, venice, FL 34285) where it was diagnosed that a new wiring harness for the knock sensors was needed along with a new engine. The vehicle was repaired, but the failures recurred. The manufacturer was made aware of the failures and not assist. The failure mileage was 62,000. The VIN was unknown.

59 Engine Knocking Noise problem of the 2014 Kia Motor Optima

Failure Date: 02/12/2019

I noticed my 2014 kia Optima's engine knocking a few months ago. I only noticed because I was parked and stepped out of my vehicle. I took the car to kia dealership where they told me there is a recall on the engine bearings and it would be very dangerous for me to continue to drive it. They kept the car a couple of days, said they could not hear it knocking and sent the car back to me. On 2/12/19 I once again was parked and stepped out of my vehicle to hear it knocking very loudly. I took out my phone and recorded the noise, emailed kia dealership and took the car in the next day. They listened to the video and was alarmed at how loud and bad the knocking was. They kept the car about 12 days and are now saying my video is not relevant because I did not get the VIN # in the video and they still can't hear a knocking sound. At this point I'm worried to drive the car. I'm afraid the engine could lock up without warning, but I am also not in a position to buy a new car or trade. If they would just replace or repair the item recalled that would be great, but kia does not want to honor their recall for me. This is my only vehicle that my kids and I can use for our commute to school and work. I have attached the video I sent to the kia dealership.

60 Engine Knocking Noise problem of the 2012 Kia Motor Optima

Failure Date: 02/11/2019

Theta ii engine failure while driving at high speeds (50-65mph) the engine began to make a loud knocking sound. Soon after, the check engine light illuminated as well as the oil light. I did pull over and contact my local kia dealer and was advised to drive the vehicle to the service department. Upon inspection I was advised the vehicle needing a new engine. It had bearing damage due to metal shavings. . . Surprisingly 3 months ago the vehicle was previously inspected for metal debris / engine bearing failure and no issues were found by the same local kia dealer.

61 Engine Knocking Noise problem of the 2014 Kia Motor Optima

Failure Date: 01/27/2019

My boyfriend and I took a trip on a Sunday afternoon about 35 minutes from home. We stopped just off the highway for lunch and as we existed the parking lot we noticed a knocking noise. We continued driving but the knocking was worsening. We pulled off the highway because the bearings began to make a noise and the car sputtered as we reached the exit. We barely made it to a gas station where we parked the car and called a tow truck. Two days later we tried to start the car and the engine has locked up. I've contacted kia support and they have not responded, I've also contacted the dealership with the same result.

62 Engine Knocking Noise problem of the 2013 Kia Motor Optima

Failure Date: 12/27/2018

Tl the contact owns a 2013 kia Optima. While the vehicle was stopped, a knocking sound was heard coming from the engine and the check engine indicator illuminated. The failure recurred and the knocking sound became louder. The vehicle was towed to the contact's residence. The contact called dutch miller kia of charlotte (704-247-7124, located at 7725 south blvd, charlotte, nc 28273) and scheduled a diagnostic appointment. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was approximately 126,000.

63 Engine Knocking Noise problem of the 2014 Kia Motor Optima

Failure Date: 12/22/2018

While on the highway trying to make a pass I suddenly loss power. I wasn't able to get the engine restarted once I pulled over. After a period of time on the side of the I restarted the car and was hearing a consistent knocking noise coming from me engine. Never had any issues or anything with the car.

64 Engine Knocking Noise problem of the 2015 Kia Motor Optima

Failure Date: 11/20/2018

Had oil changed and a month later noticed the car making a knocking noise and skipping while driving on city street and highway. Had the oil rechecked and the car was out of oil. First thought that the oil place forgot to put oil in. However, it was later determined by a mechanic that the valve was gone in the engine and I would need a new engine at 130,000 miles in a 2015 kia Optima lx. The car stopped on the highway at 70 but I was able to move to the side.

65 Engine Knocking Noise problem of the 2015 Kia Motor Optima

Failure Date: 11/20/2018

Vehicle started to make a knocking noise going down the hey at 60 mph. Car was taken to the dealer and catastrophic engine failure was diognosed. Kia commissionsers was notified.

66 Engine Knocking Noise problem of the 2013 Kia Motor Optima

Failure Date: 11/03/2018

Tl the contact owns a 2013 kia Optima. While driving approximately 30 mph, a loud knocking noise was present coming from the engine compartment, the oil pressure indicator illuminated, the vehicle would not accelerate properly, and the engine stalled. The failure was not diagnosed or repaired. The manufacturer and local dealer were not notified of the failure. The failure mileage was 94,000.

67 Engine Knocking Noise problem of the 2012 Kia Motor Optima

Failure Date: 09/14/2018

Tl the contact owns a 2012 kia Optima. While driving approximately 40 mph, the vehicle shook and stalled without warning. During the failure, a knocking noise was heard from the engine compartment. The contact exited the vehicle, lifted the hood, removed the oil cap, and noticed smoke. Furthermore, the contact smelled a burning odor as smoke escaped from the vehicle. A police report was not filed and there were no injuries. The vehicle was towed to the contact's residence. A dealer and the manufacturer were not made aware of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 148,000.

68 Engine Knocking Noise problem of the 2013 Kia Motor Optima

Failure Date: 07/22/2018

Apparently there was a recall on my car in which I was never notified of. Today while driving the car started making a knocking noise, and stopped running. All the lights came on and th ecar is broke down on the side of the road.

69 Engine Knocking Noise problem of the 2011 Kia Motor Optima

Failure Date: 06/21/2018

Was driving to work. Drove through the front gate entrance to my station when an awful metallic knocking noise could be heard in the engine compartment. Had to have the vehicle towed all the way home that day. 80+ miles. Turns out I need a new engine. Took it to a kia dealer who diagnosed the problem being a failure to a crank bearing.

70 Engine Knocking Noise problem of the 2015 Kia Motor Optima

Failure Date: 06/02/2018

Driving down the freeway- car died- all dashboard lights came on- started back up-- had a knocking noise- drove it out of traffic and parked it. Towed to kia dealership- engine is gone. Maintenance has been done regularly- the check oil light never came on - still isnt on- no oil in the engine- check engine light came on only after the car died. . This is very dangerous- the cars die in the middle of traffic.



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Optima Defect Investigations