Kia Telluride misfire problems

Filed Oct 26, 2026 · Electrical, Engine · OH · fire

There was a low-speed collision with a deer (approximately 10-15 mph). The vehicle continued to run fine after the collision and we were able to drive it home. After the next start, the engine was shaking all over and started smoking from behind the engine. The battery was disconnected but it continued to smoke. After further inspection, we were able to find a fire and extinguished it using a fire extinguisher. We had issues with this car prior to the collision where the engine would misfire after the car would get wet, but would only produce temporary codes. This was checked out by the dealer and we were told there's nothing that they can do. A few weeks prior to the collision it happened again and the check engine light went to a confirmed/permanent code and it was related to cylinder misfires. If we would not have had a fire extinguisher or had been able to roll it away from the house, the occupants, vehicle, and house would have been in danger of the fire. The source of the ignition has been confirmed to be the ignition coils, but the root cause of this has not been determined and it has just been assumed that it is related to the collision, without an actual root cause identification.

Filed Aug 27, 2026 · Engine · WA

Vehicle experienced significant drivability issues including shaking/clinking at speeds over 50 mph, check engine light, and reported two-cylinder misfires. Engine oil level was critically low, not registering on the dipstick, requiring approximately 2 quarts added to continue driving. An independent mechanic inspection found excessive oil in Cylinder 2 and assessed that oil was likely leaking past the piston rings and burning, recommending a bottom-end rebuild or engine replacement. Kia dealership (Sunset Kia) inspection subsequently found a score mark in Cylinder 6 and two external oil leaks (oil pan gasket and oil filter housing). Kia approved goodwill repair of the external leaks only, after which I was instructed to drive approximately 1,000 miles for a follow-up oil consumption test. After that period, the dealership confirmed the engine was still consuming oil beyond the external leaks. Kia Corporate took approximately three weeks to review a goodwill request for engine replacement, ultimately denying it. During this three-week period the vehicle remained at the dealership, and I incurred over a week of out-of-pocket rental car expenses due to no loaner vehicle being available and no transportation assistance offered. The vehicle has fewer than 100,000 miles. I am concerned this reflects an internal engine defect (oil consumption/piston ring or cylinder wall issue) affecting the vehicle’s safe operation, given the drivability symptoms (shaking, misfire, near-zero oil level) that initially prompted this investigation.

Filed Jul 10, 2026 · Engine · NY

About 3 months after I bought a brand new 2025 Telluride the vehicle started to randomly accelerate rapidly without increasing the gas while driving and stall when idling at lights, stop signs, or slowing down and would not turn back on for several minutes. When it does start back it misfires causing a rumbling before the check engine light comes on. It would show code P006800 and P017100 saying “critical engine error”. Despite bringing it into the dealership multiple times we were told they couldn’t replicate the problem and sent home with no solutions just to wait for it to happen again. This became a extremely dangerous situation when recently at a red light on a busy highway in the rain my telluride stalled leaving me and my young children trapped inside unable to restart the car while other vehicles flew past narrowly missing us. I’m extremely concerned for the safely of my children if we continue to drive this car. We went back to the dealership just to be told that Kia may not honor our warranty despite this being a documented problem with the 2025 Kia Telluride.

Filed Jun 17, 2026 · Engine · 115,000 miles · MI

The contact owns a 2020 Kia Telluride. The contact stated that while driving at various speeds, the vehicle was consuming an excessive amount of engine oil. No warning light was illuminated. The contact stated that while driving at slower speeds, the vehicle lost automotive power. The vehicle was taken to a local dealer, where it was diagnosed with oil consumption and a misfire in cylinder #3. The vehicle was repaired; however, the failure reoccurred. Upon further inspection, the contact stated that as per the Kia App, the vehicle was diagnosed with error codes: P030300 and P030500. The local dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 115,000.

Filed Jun 8, 2026 · Engine · MD

Vehicle experienced catastrophic engine failure while traveling approximately 70 mph on a highway. I heard a loud popping noise and immediately lost power. The vehicle would no longer accelerate normally and I was forced to pull over. White smoke was visible from the engine compartment, and a large amount of engine oil leaked from the vehicle. This failure created a safety risk because it occurred at highway speed, resulting in sudden loss of power while traveling with surrounding traffic. The vehicle required towing and could not be driven from the scene. Prior to the failure, the vehicle had exhibited symptoms beginning around May 11, 2026. A check engine light illuminated and an independent mechanic diagnosed a cylinder 3 misfire and replaced the ignition coil. Following that repair, the check engine light returned. Additional symptoms included stalling at idle, knocking noises from the engine, and intermittent oil pressure warning lights. The vehicle was subsequently inspected by an independent mechanic who diagnosed a thrown connecting rod with damage to the engine block, including a hole in the engine near the transmission area. The mechanic advised that the engine requires replacement. The damaged engine is currently available for inspection. The vehicle has not been inspected by the manufacturer. No injuries or crash occurred, but the sudden engine failure and loss of power at highway speed created a significant safety concern.

Filed Apr 2, 2026 · Fuel system · AR

Code P0087 on a Kia Telluride indicates that the fuel rail pressure is too low. This means the engine is not receiving enough fuel, often resulting in poor acceleration, stalling, rough idle, and decreased power. It is frequently caused by a faulty high-pressure fuel pump... This is the code is threw when it stalled in busy traffic on a hill. The CEL came on at this point. Then continued to stall. Before this incident, it would periodically stall while in park, or rough idle and prolonged startup. However, this was sporadic and couldn't be recreated when taken to a mechanic. We were coming back from vacation with 5 kids in the car ranging from a baby to a 12 year old. It was towed BY Kia to the nearest dealership. They claimed the recalls were addressed and the software updates cleared the codes. I came home tonight and it almost immediately started acting up again. This is a known and recognized issue in certain other vehicles (like the Sedona) and has been given an extended warranty. I'm not sure why this isn't addressed in all their GDI vehicles with these High Pressure Fuel Pumps. I'm afraid of it dying and being stranded in the heat again with young children, as well as being hit when/if it stalls.

Filed Feb 11, 2026 · Engine, Transmission · NY

I am the original owner of a 2020 Kia Telluride with 48,409 miles. My wife purchased it new. It has never been sold or transferred. It is fully covered under Kia's 10-year/100,000-mile Powertrain Warranty. What component failed and is it available for inspection? The engine is consuming excessive oil due to failed internal components—likely the piston rings. This has fouled the spark plugs and caused active misfires on cylinders 1,3,4,5. Codes: P0300, P0301, P0303, P0304, P0305. Kia acknowledges this defect in TSB ENG222, which defines consumption over 1 quart per 1,000 miles as abnormal. The failed components remain in the vehicle and are available for inspection. Has the problem been confirmed by a dealer? Yes. [Dealer Name] confirmed the misfire codes and excessive oil consumption. Despite being original owners with an active warranty, they refused to cover the repair. The advisor said they "only cover internal engine parts"—which is exactly what is broken. We were sent home with a flashing check engine light. Has it been inspected by manufacturer or others? No. Only the dealership. Kia Corporate has not inspected it. How was safety put at risk? A solid check engine light means active misfire and risk of sudden engine stall or seizure. Other Telluride owners report complete power loss on highways and intersections—no acceleration, no power steering, no power brakes. My wife and children drive this car. I fear for their safety every time they start the engine. Were there warning symptoms? Yes. Two weeks before the check engine light appeared, I noticed a slight shudder during acceleration that gradually worsened. The light came on solid, then began flashing within days. No oil light appeared. No other warnings. Kia advertised a 10-year/100,000-mile warranty. At 48,409 miles, they denied coverage for a known, documented defect. That is not a warranty. Not true. I request an investigation into the 2020 Telluride 3.8L engine. Thank you

Filed Jan 11, 2026 · Engine, Seats · TX

We have had multiple issues with this car. First the pearl white peeling off on hood and above the windshield. Second CV3 axles boots leaking on our vehicle and multiple others at the Kia dealership. Third burnin oil even with good maintenance records. 3rd sunroof won’t open or close now for no reason at all. 4th back seat now attempts to fold at random times. Even with our kids in the seat. 5th oil housing leak. 6th CEL comes on and off randomly causing it to run rough. 7th screen is now to have issues of not working right. We’ve had to pay out of pocket for multiple things. Including the paint. We’ve spoken to service department and common issue they don’t see why it’s not a recall by now. Dealership is no help. Beware

Filed Jan 7, 2026 · Engine, Fuel system · MA

On 12/24/25 the vehicle experienced the very same issue, on the highway, with my family in the car, coming from Christmas Eve festivities. The car decelerated and NO cel (check engine light) ever came on. when transporting to dealer, the car began rough idling like it wanted to die, but still no CEL. At this time, I am told there is a need for a new engine but no supporting documents or other diagnostic documentation has been shared with me and KIA at this time is refusing to resolve the issue under the powertrain warranty and the car is still under 80k miles (powertrain is until 100k) Additional Info: on Aug 5, 2025, the vehicle, with no warning lights or CEL present, the vehicle decelerated on the highway, putting me and my family in imminent danger (large truck behind us who narrowly missed hitting us) and after about 10 min the CEL came on. the vehicle would not drive above 45mph. Once the car was stopped, the CEL went off and the vehicle was diagnosed as failed high-pressure fuel pump, OCV harness, and solenoid, along with accompanying lines/gaskets/plugs and seals. After the repairs were done, I reported rattling noise to the dealer within 5 days of picking up the vehicle, when I had to bring it in for an axle joint replacement (aprox 8/12/25).

Filed Dec 30, 2025 · Engine, Transmission · IA

I purchased the 2021 Telluride (former owner of a Sportage, Rio and Sorento). I have our local mechanic handle maintenance and service. After paying $1,400 for a tune up to address misfiring, we quickly concluded the transmission was shot and my engine was burning theough every drop of oil before it was due for a change. I went to Kia of Des Moines, since it is covered under a 200k/20-year warranty. They replaced the transmission under warranty, I shared my mechanic details for records, and they told me they were going to do an oil consumption test. They sent me on my way, asking for me to return after 1,000 miles. I did (and then my car began shaking, but we thought it was due to snow conditions) and they quickly said, "Yes, it is an issue!" My Telluride burned through almost 2.5 quarts of oil in 1,000 miles. I left on 12/15, being told they would have direction from Kia corporate on next steps and acknowledged I need a vehicle loaner during repairs (single disabled mother, who has to travel safely). I did not hear back, chasing for updates. Yesterday, Steven text me saying I would need to authorize $1,600 engine tear down fee in order to confirm issue. I asked for Denny, the manager to contact me. I also called Kia Care, who said it is up to dealer. I am seeing so many issues with Tellurides burning oil. And, I do not have $1,600 to make my vehicle safe - that amount would make me sacrifice my home or another necessity. Google said to fight it and to submit a form to you also. I have to fight this because I have no other choice than to sell an organ. I will stock up on oil to keep filling it so my engine doesn't blow up, but have incredible fear of being stranded and not being able to get my vehicle towed or us home safely. If there is anything you can assist with, I appreciate it. I just found out my parent's 2023 telluride is burning too much oil too - they haven't got the $1,600 sticker, but I know that amount will wreck them also.