2021 Kia Soul: engine knocking or ticking

Filed Oct 30, 2026 · Engine · CA

Subject: Safety Complaint Regarding Kia Recall SC336, Excessive Oil Consumption, and Engine Knocking I am filing this complaint against Valley Kia regarding its handling of Recall SC336 on my 2021 Kia Soul S. I was informed by Valley Kia that the recall repair was completed in May 2025. However, on September 17, 2026, I returned the vehicle because of excessive oil consumption and engine knocking, symptoms consistent with the engine problems addressed by the recall. The dealership changed the oil, but within two weeks, the engine had burned through the oil again. I am concerned that the underlying problem has not been properly diagnosed or corrected. Valley Kia is refusing to adequately address the issue under the recall and is asking me to pay for repairs that I cannot afford. I rely on this vehicle to commute approximately 45 miles each way to work. I am afraid the engine could fail while I am driving on the freeway, potentially putting my life and the lives of other motorists at risk. I am also concerned about the possibility of an engine fire. I am requesting that the federal safety agency investigate this matter and help determine whether Valley Kia properly completed Recall SC336 and whether my vehicle's current engine problems require further recall-related repairs or other corrective action. I should not have to bear the financial burden of a potentially serious safety defect that may be related to a recall the dealership claims to have completed. Please review this complaint and advise me of the appropriate steps to protect my safety and resolve this matter.

Filed Sep 28, 2026 · Engine · NJ

consumer protection complaint against Gateway Kia of North Brunswick for wrongful warranty denial, deceptive business practices, and failure to comply with a federally mandated class action settlement.On Friday, September 25, 2026, my 2021 Kia Soul was left at Gateway Kia due to engine distress. The service department performed a physical mechanical bearing test and confirmed that the vehicle has a failed connecting rod bearing (the engine rod is shot).Despite this definitive physical proof of mechanical failure, the dealership's service department and Kia Corporate Consumer Affairs flatly refused to honor the repair or provide a mandated loaner vehicle. They claimed the vehicle is "out of warranty" and "does not match a recall."This vehicle is explicitly covered under the Kia Nu Engine Class Action Settlement, which legally mandates a Lifetime Warranty Extension for connecting rod bearing wear and failures for qualifying vehicles, regardless of original ownership or standard factory warranty expiration. Furthermore, the settlement explicitly dictates that a free loaner or alternative transportation must be provided while a class vehicle is held for a qualifying engine failure.By running a physical test that proved a settlement-covered mechanical failure, yet refusing to honor the court-ordered warranty extension, Gateway Kia is engaging in deceptive trade practices and violating federal class settlement terms. They are holding my inoperable vehicle while I am forced to maintain a $449.13 monthly finance payment to Credit Acceptance Corporation for a vehicle they refuse to fix.Requested Resolution:I request that the Division of Consumer Affairs investigate Gateway Kia of North Brunswick and compel Kia America, Inc. to immediately authorize the engine replacement under the Class Action Settlement terms.

Filed Aug 11, 2026 · Engine · FL

My 2021 KIA Soul has a recall order for P1327 code which is the knocking noise from the piston ring. The KIA dealership in Idaho Falls is denying the recall order, claiming that it has to be from the upper chamber, not the lower chamber. Which is not stated in the recall letter. They have done everything to avoid this recall. I have evidence that they know the engine have all the symptoms of the piston ring, but trying to avoid everything to replace the engine. They even deny giving the part name that is causing the knocking noise and not giving me the diagnostic report. Even charging $6,000 for the engine replacement.

Filed Jul 3, 2026 · Engine · TX

Vehicle: 2021 Kia Soul LX, 2.0L Engine Subject: Loss of Motive Power and Stall While Driving Under Recall SC336 Description of Incident: On 07/02 @ roughly 6:15PM, while driving on the highway I-35E at approximately 60 MPH, my vehicle's engine experienced a sudden and complete loss of engine power, stalling while in motion. I was able to safely navigate to the shoulder, activate my hazard lights, and restart the vehicle after pulling over. This stall occurred despite the vehicle being covered by Recall SC336 for defective piston oil rings . The recall condition explicitly warns that engine seizure can result in "loss of motive power," creating a significant risk of crash or injury. Ongoing Symptoms (Documented): · Excessive oil consumption: Over 2.5 quarts low after approximately 1,000 miles since the last oil change. This aligns with the recall's "increased oil consumption" warning. · Audible engine knocking when shutting off and ticking during acceleration. This matches the "abnormal noise from the engine" described in the recall. · Active Diagnostic Trouble Codes (DTCs) stored: P0017, P0014, P000B, P0172, P0300, P0301, P0302, P0303, P0304. These indicate timing issues, misfires on all four cylinders, and oil pressure-related failures. Vehicle had similar codes when visited for recall February of this year. Was told everything looked fine. · The vehicle shows signs of instability when accessories (A/C, headlights) are engaged, suggesting the engine is struggling to maintain idle. Safety Risk: The vehicle is unsafe to drive. The stall on the highway presented an immediate crash risk due to the sudden loss of power, which also disables power steering and power brakes.

Filed Jun 2, 2026 · Engine · MI

Was issued a recall from kia for an oil piston ring that wasn't heat treated properly, kia told me the problem was fixed and the recall shouldn't affect me, my car was in an out of the shop for months after that, they replaced my timing belt and transmission under warranty, said i sould be fine between oil changes my car started knocking, i checked the oil and it was completely dry, no warning lights which is part of the recall fix is early detection warning light. I add oil to my car seems to run better for the day, the next morning on my way to an oil change the engine starts knocking the warning light comes on and then im on the side of the road with all my oil on the ground

Filed May 19, 2026 · Engine · 126,000 miles · VA

The contact owns a 2021 Kia Soul. The contact stated that upon starting the vehicle, the oil pressure sensor light was illuminated. The vehicle was making an abnormal knocking sound. The contact had to add additional oil. The vehicle was taken to an independent mechanic who informed the vehicle was related to the recall. The vehicle was towed to the local dealer, where it was diagnosed that the camshaft and timing needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle was taken previously to the local dealer for the federal safety agency Campaign Number: 25V099000 (Engine and Engine Cooling). The manufacturer was contacted, who confirmed there was no warranty coverage. The failure mileage was approximately 126,000.

Filed Mar 29, 2026 · Engine · OH

the federal safety agency SAFETY COMPLAINT: RECALL SC336 (CAMPAIGN 21V‑301) NON-COMPLIANCE VIN: [XXX] I. PATTERN OF RECALL EVASION Vehicle (2021 Kia Soul) was towed to Classic Kia [XXX] ) on 3/13 with documented engine stalling, knocking, and codes P0014/P0017 (VVT/Timing failure). The dealership withheld this data from Kia Techline for 13 days (3/13–3/26), delaying the safety remedy until state authorities intervened. II. MECHANICAL IMPOSSIBILITY & REMEDY VIOLATION On Saturday 3/28, the dealer claimed a full engine swap was "installed and tested" in only 6.5 hours (7:30 AM–2:15 PM). Per the SC336 mandate, a compliant Long Block assembly (Part # ending in QQK) requires extensive fluid flushes, software reflashing, and safety recalibrations that cannot be performed correctly in this window. I suspect a "Short Block" shortcut was taken, reusing contaminated components in violation of the federal safety remedy. III. FRAUD BY OMISSION & UNIFIED SAFETY HAZARD The dealership is demanding a $99 "diagnostic fee" for an exhaust back-pressure test. Under SC336, testing for "consequential damage" (clogged catalytic converter) caused by the recall defect must be covered by the manufacturer. By omitting the stalling/timing symptoms from the initial Techline report, the dealer bypassed the mandatory exhaust safety testing. Reusing oil-contaminated VVT solenoids, camshafts, and valves from the failed engine poses an immediate fire and safety hazard. IV. DEMAND FOR INVESTIGATION I request the federal safety agency oversight to ensure Classic Kia provides: 1. Proof of Long Block (21101-QQK) installation vs. unauthorized Short Block (21102). 2. Time-stamped DEVT and GDS Full System Scan logs from 3/28. 3. Verification that all contaminated components were replaced, as a partial remedy leaves the vehicle in a hazardous state. Reusing oil-soaked VVT/cams & skipping exhaust tests creates a fire risk. An incomplete remedy violates SC336, leaving the car a high-risk liability for fire & stalling. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S

Filed Mar 17, 2026 · Engine · OH

My 2021 Kia Soul is exhibiting a severe safety defect documented in Recall SC336: frequent, unpredictable stalling in traffic ("Loss of Motive Power") and audible engine knocking. These symptoms create a high risk of a rear-end collision or being stranded in a dangerous traffic situation. The vehicle is currently at Kia of Streetsboro. Despite being provided with evidence of these active mechanical failures, the dealership is attempting to "remedy" the safety recall based solely on a "Pass" result from the Piston Ring Noise Sensing System (PNSS) software diagnostic. As the TSB SC336 notes that the root cause is physical damage to cylinder walls caused by defective piston oil rings, a software diagnostic "Pass" is not a physical repair and does not address the existing mechanical stalling. I have not received any status updates or communication from the dealership service department since Friday. The dealership is refusing to perform a borescope inspection or open a Kia Techline case to investigate the stalling, effectively denying a proper safety remedy. I am reporting this as a failure of the manufacturer and dealership to provide a safe and effective remedy for a known life-safety defect. The car remains unsafe to drive.

Filed Feb 16, 2026 · Engine · GA

We are the 2nd owner of 2021 Kia Soul bought in July 2025. Took to a dealership for open recalls shortly after purchase. After supposedly passing the piston ring recall (the federal safety agency 21V259) for the next several months after it had severe oil consumption but other wise drove fine. Then immediately after our last oil change on Feb 13, 2026, less than 10 miles later the car stalled and was knocking badly. Towed to nearest dealership and after diagnostic was told engine needs replacing. Wants us to pay for it. The software update (Piston Ring Noise Sensing System or PNSS) installed during the recall visit did not fix the faulty piston rings and also failed to give any warning for the impending engine failure. We never had any check engine or oil pressure lights come on until this incident.

Filed Jul 31, 2025 · Engine · 24,000 miles · AZ

The contact owns a 2021 Kia Soul. The contact stated that while driving at an undisclosed speed, there was an abnormal ticking sound coming from the engine compartment, and the steering wheel was slightly difficult to turn. There was no warning light illuminated. The vehicle was not diagnosed or repaired by the dealer or an independent mechanic. The contact related the failure to the federal safety agency Campaign Number: 21V259000 (Engine); which was previously performed on the vehicle. The manufacturer was not notified of the failure. The failure mileage was 24,000.

Filed Jul 10, 2025 · Engine · IA

Engine burns oil irregularly and quickly. In October 2022, the check engine light was on and stalled while driving. Kia dealership in Sioux City stated my vehicle was not part of the original recall. The car was under warranty and they kept it for nearly 2 months to repair. Vehicle started stalling again last winter. Was told mice ate wires per dealership. In June 2025 - oil still burning quickly despite getting on time and regular oil changes. This time while driving on the interstate the check engine light came on again. Went to my local mechanic immediately (Car is out of warranty per mileage 85,000) and I hate the dealership - bone dry oil. They are convinced it's the pistons. Called the dealership. They made me call Kia. Kia claims my vehicle is not effected by the updated April recall - but they could repair my...horn. This car is dangerous. It constantly makes a knocking sound. I check the oil twice a week and have to add oil accordingly like it's a 1978 Buick. If this car stalls out while I'm commuting to work on an interstate, I and others could be seriously injured.

Filed Jun 12, 2025 · Engine · CA

My car had sputtered leaving gas station I took it to my mechanic February 17 had engine coil and spark plugs replaced There was a anti theft recall for software update I took my car to Kia dealer and they preform the update As I was waiting I looked up my vin for any other recalls and there was one but letters would not be sent out till April 4 2025 On May 10 th my car had loss power and on the 12 th I called Kia and they said there was a recall for sc336 piston oil rings I took my car in on May 17 they did a software update 2 days latter my car was making a knocking sound I had that repaired by my machanic on May 20th I received a email from Kia reference a up date to the recall and says my car will be fixed with no charge I spoke with a Kia representative and out in a claim for reimbursement but was denied…. WS my repairs related to the recall SC336 if so I would like to be reimbursed please help me get this resolved I would think Kia would send me a detailed explanation on why my part that was repaired are not reimbursed