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severe Owners of the 2011 Kia Sorento have filed 190 NHTSA complaints about the engine, typically surfacing around 101,000 miles at roughly $3,100 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See engine across all vehicles →
| Model year | engine complaints |
|---|---|
| 2007 Sorento | 6 |
| 2008 Sorento | 17 |
| 2011 Sorento (this page) | 190 |
| 2012 Sorento | 344 |
| 2013 Sorento | 385 |
| 2014 Sorento | 278 |
| 2015 Sorento | 284 |
Of the 190 engine complaints filed for the 2011 Kia Sorento, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
Owners have filed 190 engine complaints against 1 active recall — roughly 190 complaints per campaign.
A fire increases the risk of injury.
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
TECHNICAL SERVICE BULLETIN: SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (SC291YZ) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information related to the Technical Service Bulletin previously published in (SC291) titled “Engine Inspection/Replacement and KSDS Software Installation” for 2011MY Sorento (XMa) vehicles equipped with Theta 2.4L MPI engine, produced from October 24, 2009 through June 24, 2011. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the
full bulletin at NHTSA ↗This bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below return to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).
full bulletin at NHTSA ↗TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2101Y/Z) - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This bulletin provides information related to the Technical Service Bulletin previously published in (PI2101) titled “Knock Sensor Detection System - ECU Logic Improvement” for 2011MY Sorento (XMa) vehicles equipped with Theta 2.4L MPI engine, produced from October 24, 2009 through June 24, 2011. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of
full bulletin at NHTSA ↗TECHNICAL SERVICE BULLETIN: BEARING CLEARANCE TESTER (BCT) PROCEDURES - This bulletin provides information regarding test procedure of the Bearing Clearance Tester (BCT) Special Service Tool (SST). The SST comes pre-calibrated from the supplier however, in some cases, due to variable shop compressor air pressure, the SST may need to be re-calibrated to ensure that the tool provides accurate readings when testing the engine rod bearing wear. The calibration and BCT measuring point maintenance is included in this bulletin.
full bulletin at NHTSA ↗SUBSEQUENT REPAIR ACTION: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2101Y/Z) - This bulletin provides information related to the Technical Service Bulletin previously published in (PI2101) titled "Knock Sensor Detection System - ECU Logic Improvement" for 2011MY Sorento (XMa) vehicles equipped with Theta 2.4L MPI engine, produced from October 24, 2009 through June 24, 2011. Specifically, this bulletin provides instructions on which procedures to follow if, after installation of the KSDS, any one of the subject vehicles below return to the dealer with Diagnostic Trouble Code (DTC) P1326 (Knock Signal Range/Performance).
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The 2011 Kia Sorento 2.4L engine shows a clear pattern of catastrophic failure across 50 complaint narratives. Owners report spontaneous engine fires with connecting rods punching through the oil pan, sudden seizure without warning, and stalling in traffic that caused loss of power steering and brakes. In some cases, engines shut down on the highway; in others, they caught fire while parked in garages.
Rod bearing failures are the most common diagnosis, often with zero advance warning. Owners describe keeping meticulous service records, checking oil regularly, and encountering locked-up engines with full oil on the dip stick but no oil pressure reaching critical surfaces. Metal shavings in the oil, timing chain failures, and cracked crankshafts feature in multiple reports.
Hesitation and rough running plagued early ownership in some vehicles; one owner swapped the defective 2011 for a replacement 2012 model and experienced identical symptoms within 50 miles. Stalling issues recurred repeatedly after dealer repairs, and dealerships frequently told owners they could not replicate or diagnose the problem without a stored code.
Kia's response has been inconsistent. Recall campaigns (SC147, 17V224000, 23V877000) exist for knock sensor detection and engine protection, but many 2011 units fall outside the qualifying window. Second owners are regularly denied coverage. Some owners were refused free recall work because they missed an ECM update notification they claim never arrived, leaving them liable for $4,500–$6,500 engine replacement bills.
Same Kia Sorento engine reports on nearby years: 2008 · 2012 · 2013 · 2014
Engine compartment fires, rod bearings blowing through oil pan, connecting rods failing and puncturing engine block, oil spray igniting on hot exhaust, and complete engine destruction. Multiple complaints describe flames emerging from under the hood or engine bay, with some vehicles destroyed entirely. Fires occurred both while driving and while parked.
When: Various—reported at mileage ranges from 44,000 to 150,000+ miles; timing varied from immediately after startup to highway speeds
Symptoms owners cite: Loud bang or popping sounds from engine; Flames and smoke coming from engine compartment or under vehicle; Loss of power while driving; Rattling or knocking engine noise preceding failure; Burning oil or plastic smell; Vehicle stalling or shutting down
Codes mentioned: Rod bearing failure, Connecting rod failure, Crankshaft failure, Timing chain/belt failure
Repairs/costs cited: Engine replacement required; costs cited at $4,500–$6,500 total including labor and fluids. Some owners reported partial warranty coverage or denial.
Recalls/TSBs owners mention: Kia issued recall campaigns (17V224000, 23V877000, SC147) but many 2011 models were excluded. Kia often denied coverage citing missed recall updates (knock sensor detection system/ECM reprogramming) or second-owner status. In some cases Kia offered 50% cost-sharing but refused full replacement.
Engine locks up due to loss of oil pressure or low compression in cylinders. Oil dip sticks showed no oil despite no visible leaks, and no warning lights preceded failure in most cases. Some owners reported knocking sounds days before seizure; others had zero warning.
When: No warning in most cases. Mileage ranged from 43,000 to 230,000+ miles; some occurred within one year of purchase with modest mileage
Symptoms owners cite: Engine suddenly shuts down while driving; No oil on dip stick despite full level at last check; No visible leaks under vehicle; Loud knocking or rattling from engine (sometimes days before); No check engine or oil warning light before failure
Codes mentioned: Low compression in multiple cylinders, No oil pressure, Rod bearing failure
Repairs/costs cited: Engine replacement $3,000–$6,500+. Some owners reported they had kept all service records and religiously maintained the vehicle.
Recalls/TSBs owners mention: Kia often denied coverage for second owners or vehicles outside recall parameters. Some owners were told repairs were not covered by warranty due to mileage (100,000+) or ownership status.
Engine suddenly stalls or loses power without warning while driving at various speeds (30–70 mph). Drivers lost power steering and brakes, creating immediate safety hazards. In some cases, the vehicle would not restart immediately; in others it restarted after waiting or disconnecting the battery.
When: Reported from 4,800 miles to 205,000 miles; incidents occurred during normal driving, traffic, highway merges, and intersections
Symptoms owners cite: Sudden loss of engine power; Engine stalling mid-drive; Loss of power steering and power brakes; Check engine light may or may not illuminate; Vehicle difficult or impossible to restart immediately
Codes mentioned: Check engine light (intermittent or no code present), Multiple pending misfire codes P1326, P0300 series, PCM/computer malfunction
Repairs/costs cited: Dealers often unable to replicate the problem during service visits. One repair involved PCM replacement ($1,500 estimated). Some owners reported no permanent fix after multiple dealer visits.
Recalls/TSBs owners mention: Recall campaign for knock sensor detection system (SC147, 23V877000) existed but many 2011 models fell outside the recall window (e.g., manufactured before July 2010 or after certain cutoff dates). Kia customer service often replied there was 'nothing they could do' without a stored diagnostic code.
Engine hesitates or bogs down during acceleration from stop or low speed, sometimes with misfire and rough running. Check engine light may flash. One owner switched vehicles and the replacement 2012 model exhibited the same problem, suggesting a systemic issue.
When: From 4,800 to 50,000+ miles; hesitation occurred when pulling into traffic, merging, accelerating from stops
Symptoms owners cite: Engine hesitation when depressing accelerator; Rough running or bogging down during acceleration; Check engine light flashing; Engine running rough even after coil and O-ring replacements; Disappears after vehicle sits or is restarted
Codes mentioned: Misfire codes (2 coils detected, then no codes on repeat scan), No codes present in many cases despite symptoms
Repairs/costs cited: Dealers replaced ignition coils and O-rings without resolving the issue. One dealership replaced two coils; problem recurred within days. No permanent fix identified in complaints.
Recalls/TSBs owners mention: Kia contacted dealerships but provided no resolution. Dealers tested vehicle under tech line cases but offered no remedies. One owner was told to check fuel source; another was refused same-day service at dealership closing time.
Loud rattling, knocking, or banging sounds from engine, sometimes followed by catastrophic failure (rod thrown, crankshaft cracked). Noises ranged from minor rattles to grinding sounds on startup.
When: Reported from 44,000 to 120,000+ miles; knocking sometimes present for days before engine failure
Symptoms owners cite: Loud knocking or rattling from engine; Grinding sound on startup (hard start); Metal shavings in engine oil; Timing belt/chain failure noise; Banging from engine with loss of power
Codes mentioned: Rod bearing failure, Timing belt/chain failure, Crankshaft pulley bolt pin shear
Repairs/costs cited: Clogged oil filter was one disputed diagnosis (44,000 miles, still under warranty). Mechanic added oil and knock subsided temporarily but engine later threw rod. Rod bearing and timing belt replacement necessary in severe cases.
Recalls/TSBs owners mention: Recall SC147 and 23V877000 addressed knock sensors and engine protection, but not all 2011 models qualified. One owner with 44,000 miles was denied warranty coverage for 'clogged oil filter' despite never receiving proper diagnosis.
Oil leaking from seals, gaskets, and pan areas. In some cases, owners reported no oil spots on driveway despite burning oil smell; leaks only appeared after dealer service. One owner was diagnosed with a leaky oil pan seal that did not resolve the underlying issue.
When: Reported from new vehicle condition through 150,000+ miles
Symptoms owners cite: Engine smoke and burning oil smell; Oil spots under vehicle; Oil level dropping between service intervals (engine burning oil); Warped valve cover; Leaking oil onto exhaust manifold
Repairs/costs cited: Oil pan seal repair $369.64 (one complaint); valve cover and manifold replacement $1,668+ estimated (2024 complaint). Repairs did not resolve underlying engine problems in most cases.
Recalls/TSBs owners mention: Dealer service diagnosed oil pan seal leak and performed repair, but issue persisted. Later service showed engine shutting down while driving—unrelated to seal repair per dealer claim. Kia recall notice for fire risk due to oil onto exhaust led to denial of coverage due to missing secondary repair component.
Timing chain or belt failure detected after engine failure. One complaint explicitly diagnosed timing belt failure; others had rod bearing and metal shaving issues consistent with timing system failure.
When: Detected post-failure at mileage ranges from 90,000 to 120,000 miles
Symptoms owners cite: Loud rattling or knocking preceding failure; Metal shavings in engine oil; Engine unable to start after stall; No warning before failure
Codes mentioned: Timing belt failure, Rod bearing failure (secondary to timing system collapse)
Repairs/costs cited: One owner was charged $200 diagnostic fee and refused further service; experienced mechanic (20+ years) stated they had never seen such a failure.
Recalls/TSBs owners mention: Recall SC147 mentioned by some owners but vehicle excluded. Kia denied claim citing 100,000+ mileage or second-owner status despite vehicle being a 2012 body style made in 2011.
Crankshaft cracked in multiple spots, rod bearings spun or failed, or connecting rods blown through oil pan. In one case, full oil level and no leaks were present but oil was not reaching the engine.
When: Reported at 65,500 miles (one year ownership), 98,000–120,000 miles (mid-life failures), and 108,000+ miles (despite meticulous service)
Symptoms owners cite: Loud bang or grinding from engine; Loss of power and stalling; Full oil level on dip stick but no oil pressure; Oil light and check engine light illumination; Rod pushed through oil pan or block
Codes mentioned: Low or no oil pressure, Rod bearing failure
Repairs/costs cited: Engine replacement $4,500–$6,500 total cost. In one case, owner was charged nearly $200 diagnostic fee and told warranty did not apply (second owner, over 100,000 miles). Some owners reported Kia offered 50% coverage.
Recalls/TSBs owners mention: Kia often excluded 2011 models from recall coverage or denied second-owner claims. One complaint noted extended warranty was denied post-catastrophic failure due to missed recall update (knock sensor detection system).
Exhaust camshaft broken off or melted in cylinder head, blown head gaskets, cracked cylinder heads, and warped blocks. Metal shavings found in oil. In one case, valve cover was warped and leaking onto exhaust.
When: Reported from 77,000 to 230,000 miles
Symptoms owners cite: Engine wanting to die out at idle and red lights; Check engine light illumination; Metal shavings in engine oil; Cracked coil housings (coils 3 & 4); Cylinder head warping without visible over-heating (temp gauge normal)
Codes mentioned: Broken exhaust camshaft, Blown head gasket
Repairs/costs cited: Cylinder head removal and replacement required. Kia covered approximately 50% of repair cost in one case ($1,668+ total estimated). Head gasket and bolt replacement noted as necessary.
Recalls/TSBs owners mention: Kia covered 50% of repair when issue was reported during warranty period; refused coverage on second report for same vehicle. No explanation provided for head warping on low-mileage vehicle (77,000 miles) with normal operating temps.
Synthesized from 190 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
Engine light flashes fast then Kia will slow down to about 30 mph when going up a hill, I've make claims on this Kia for the fire loss, transmission, brakes and now it won't run unless I pay $85 to have the sensor reset which lasts a short time and the light starts flashing again. Was told it doesn't qualify for a new engine because the mileage is over 150,000.
While driving through a shopping plaza, going about 15mph,the vehicle suddenly shut off, causing the loss of all power assist functions and electrical operation. The electrical came back on-line right away, but the car had to be restarted. The second time it happened was in rush hour traffic, 4 days later. The car was coasting at about 25 MPH when it shut down again. *kb
While driving the vehicle and while pressing the gas pedal the vehicle starts to come to a stop as if the gas pedal is not being applied. I have to release the gas pedal and press it again for the sorento to respond and continue to accelerate. I took it to the dealer and they have no clue as to what is the problem. They reset the computer and released the vehicle to me but the problem…
The engine on my 2011 Kia Sorento has failed and the mechanic at the Kia dealership told me it was because of the rod bearings. My car was serviced at the Kia dealership in April 2021 and apparently 2 weeks later an ECU update recall was placed on my vehicle. I did not receive anything notifying me of this update. In November of 2021 my engine started making a loud noise and then failed to turn…
It's a meaningful issue. 190 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
Across the 133 complaints that reported odometer mileage, most engine failures cluster between 58,500 and 137,440 miles, with the median around 101,000. A quarter of owners report trouble before 58,500; a quarter make it past 137,440. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Yes — 1 active recall(s) cover engine issues on this vehicle. Recall fixes are always free regardless of mileage or warranty status. Use the VIN decoder at the top of the page to check if your specific vehicle is affected.