TECHNICAL SERVICE BULLETIN: PRODUCT IMPROVEMENT CAMPAIGN: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2002Y/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 (PI2002A, PI2002B and SC200**1) titled “Knock Sensor Detection System - ECU Logic Improvement”. 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 Ra
full bulletin at NHTSA ↗2013 Kia Forte engine problems
severe Owners of the 2013 Kia Forte have filed 88 NHTSA complaints about the engine, typically surfacing around 90,000 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 →
Failure mileage
Complaints
88
Recalls
0
Avg fix
$3,100
| Model year | engine complaints |
|---|---|
| 2010 Forte | 60 |
| 2011 Forte | 38 |
| 2012 Forte | 123 |
| 2013 Forte (this page) | 88 |
| 2014 Forte | 157 |
| 2015 Forte | 131 |
| 2017 Forte | 110 |
6fires
When does it fail?
Of the 88 engine complaints filed for the 2013 Kia Forte, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
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.
What stands out
Engine accounts for 45% of every owner complaint on file for this vehicle — the dominant problem area across 9 categories tracked.
Owners have filed 88 engine complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Is there a fix? Manufacturer service bulletins
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: ENGINE REPLACEMENT INSTRUCTIONS FOR DTC P1326 (PI2002Y/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 (PI2002A, PI2002B and SC200**1) titled "Knock Sensor Detection System - ECU Logic Improvement". 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 ↗TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - 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 regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Worm Gear Assembly or Steering Column Housing on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit.
full bulletin at NHTSA ↗TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU, WORM GEAR AND/OR STEERING COLUMN HOUSING - 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 regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU), Worm Gear Assembly or Steering Column Housing on some 2010MY~ Kia models listed on page 8, equipped with a Column Motor Driven Power Steering (C-MDPS) unit.
full bulletin at NHTSA ↗TECHNICAL SERVICE BULLETIN: PARTIAL REPAIR OF C-MDPS MOTOR, ECU AND/OR STEERING COLUMN HOUSING - This bulletin has been revised to include additional information.This bulletin provides information regarding the partial repair of the Motor Driven Power Steering (MDPS) Motor, Electronic Control Unit (ECU) or Steering Column Housing on some 2010MY~ Kia models listed on page 5 equipped with a Column Motor Driven Power Steering (C-MDPS) unit. Follow the MDPS Flowchart (page 2) along with the MDPS DTC Table (page 3) procedure outlined in this bulletin before replacing the C-MDPS Motor, ECU or Steering Column Housing.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Owners describe sudden, severe engine failures in 2013 Kia Fortes across a wide mileage range. Most failures involve rod bearing wear-through or piston/wrist pin failure, characterized by escalating engine knock that starts faint and grows into loud, metal-on-metal clatter. Many failures happen without warning lights; some show oil pressure warnings only moments before the engine seizes or stalls completely. Engine stalls occur at highway speeds (55–75 mph), forcing drivers to coast to shoulders or sit stranded in traffic. Power loss is abrupt—steering and brake assist fail when the engine dies, creating unsafe situations. Some owners report the engine restarting after stalling, only to fail again within days. A few cases documented smoke from the engine bay and one vehicle fire. Owners consistently report regular oil changes and proper maintenance; dealerships often falsely claim "oil sludge" caused the failure without opening the engine for inspection. Repair costs run $3,700–$7,000 for engine replacement. Recall 20V750000 exists but excludes many 2013 Forte models, particularly 2.0L MPI engines, even though owners note these engines share identical internal components and fuel delivery systems with recalled 2.4L engines. Many dealerships deny warranty coverage citing owner fault or second-owner status; the manufacturer frequently refuses coverage or demands dealership compliance before approving repairs. Service advisors claim the knocking noise is "normal for these cars," yet the volume and consistency of complaints—across different model years, service conditions, and mileages—point to a manufacturing defect rather than owner error.
Same Kia Forte engine reports on nearby years: 2010 · 2011 · 2012 · 2014 · 2015
Failure modes owners describe
Rod bearing failure with catastrophic engine damage
Internal rod bearings wear through or fail, leading to metal-on-metal contact, engine knock, loss of power, and complete engine seizure. Failures occur with no prior warning lights or often with only oil pressure warnings appearing moments before total failure.
When: 45,000 to 140,000 miles; most commonly 60,000–90,000 miles
Symptoms owners cite: Loud knocking or tapping noise from engine, escalating from faint to severe; Loss of engine power and inability to accelerate; Engine stalling at highway or low speeds, sometimes without warning lights; Smoke from engine compartment or exhaust; Oil or check engine light illuminating shortly before failure; Engine will not restart or restarts but knocks loudly; Steering and brake assist lost when engine fails
Codes mentioned: P0300 (Random misfire), P0101 (Mass airflow), Check engine light (generic)
Repairs/costs cited: Engine replacement required; owners report $3,700–$7,000 repair costs. Some dealerships initially denied coverage citing 'oil sludge' without internal inspection. Independent mechanics confirmed no sludge or defects in maintenance.
Recalls/TSBs owners mention: Recall 20V750000 exists but excludes many 2013 Forte models and does not cover all engine variants (2.0L MPI engines excluded from most recalls, though 2.4L GDI engines are covered). Some dealerships refuse coverage claiming 'sludge' or owner fault; manufacturer often denies warranty due to second-owner status or mileage limits. Some cases refer to ECU update requirement before engine replacement.
Engine seizure with no warning
Engine suddenly locks up and becomes immobile with little to no prior indication. Occurs during normal driving, acceleration, or at idle. No warning lights illuminate in many cases.
When: 50,000 to 140,000 miles
Symptoms owners cite: Sudden engine lockup while driving, turning, or at traffic light; No warning lights prior to seizure; Loud clunking noise when trying to restart; Engine turns over but will not start; Loss of power steering and vacuum-assisted brakes; Vehicle stranded in dangerous positions (highway, intersection)
Codes mentioned: None typically (no warning lights present before seizure)
Repairs/costs cited: Engine replacement only solution; estimated $6,500 for repair and replacement. Many owners left with stranded, unusable vehicles and ongoing loan payments.
Recalls/TSBs owners mention: Manufacturers and dealerships deny warranty coverage in most cases; refer vehicle to junkyard when seizure occurs. No recall remedy available for most affected 2013 Forte models.
Engine fire and fuel leak
Engine overheats or catches fire during operation or after failure. Fuel delivery tubing ruptures and leaks near hot exhaust components, creating fire hazard. One case documented engine catching fire after seizure on freeway.
When: 85,400 miles reported in one fire case; typically during rod bearing or catastrophic failure sequence
Symptoms owners cite: Smoke emerging from engine compartment; Engine compartment fire; Smoke entering vehicle cabin through vents; Fuel leak from delivery tube near exhaust; Check engine and oil warning lights illuminated
Codes mentioned: Check engine light, Oil pressure warning light
Repairs/costs cited: One vehicle deemed total loss by insurance after engine fire; fire department response required. Engine replacement required if vehicle salvageable.
Recalls/TSBs owners mention: Recall 20V750000 addresses engine fire risk but does not include all 2013 Forte models. 2.0L MPI engines excluded despite identical fuel delivery design to recalled 2.4L engines. Owners note same part numbers used for fuel delivery systems across engine sizes.
Oil starvation and loss of oil flow
Oil fails to flow through engine oil lines, depriving rod bearings and other internal components of lubrication. Mechanics find no oil reaching critical engine areas despite full oil level. Symptoms persist even after routine maintenance and oil changes.
When: Variable; can occur suddenly or develop over months; typically 70,000–100,000 miles when failures occur
Symptoms owners cite: Oil warning light illuminates despite full oil level; Engine knocking and overheating; Stalling and loss of power; No oil flow detected in engine lines during inspection; Repeated stalling after multiple attempted repairs
Codes mentioned: Oil pressure warning light
Repairs/costs cited: Mechanics have performed crankcase flushes and oil line cleaning as temporary fixes; requires repeat procedures. Root cause often points to manufacturing defect in oil pump or internal passageways, not maintenance failure.
Recalls/TSBs owners mention: No recalls address oil starvation. Dealerships and independent shops treat as maintenance issue despite owners performing regular oil changes. Some service advisors suggest lifter or piston problems without engine removal for inspection.
Limp mode and power loss during acceleration
Vehicle enters limp mode (speed limited to 20–30 mph) or loses ability to accelerate during normal driving. Check engine light illuminates. Vehicle becomes undriveable at highway speeds.
When: 55,000–125,000 miles
Symptoms owners cite: Check engine and check oil warning lights illuminated; Vehicle unable to exceed 20–30 mph despite accelerator input; Loss of power during acceleration or overtaking; Engine stuttering and rough running; Smoke from exhaust during power loss events
Codes mentioned: P0300 (Multiple cylinder misfire), Check engine light (multiple possible codes)
Repairs/costs cited: Knock sensor replacement attempted as temporary fix in at least one case but failure recurred within 2 days. Root cause is internal engine damage, not sensor malfunction.
Recalls/TSBs owners mention: Recall 20V750000 issued but does not cover all 2013 Forte models. Some dealerships attempted to charge for engine replacement despite recall notification stating free replacement. Manufacturer declined coverage citing ECU update requirement not performed prior to failure.
Engine knock/detonation with piston and wrist pin failure
Loud knocking noise from pistons or wrist pins failing internally. Noise escalates from occasional to continuous metal-on-metal contact. Indicates imminent engine failure.
When: 45,000 to 136,000 miles; often persistent for months or years before total failure
Symptoms owners cite: Loud knocking at low RPM during acceleration from stop; Knocking increases with load (air conditioning engaged, going uphill); Ticking or tapping noise that becomes severe knocking; Noise present intermittently then becomes constant; Engine continues to run despite knocking for extended periods
Codes mentioned: No diagnostic codes in many cases; engines continue running despite internal damage
Repairs/costs cited: One owner had rod and bearing replaced but car still had stalling and knocking; suggests broader internal defects. Mechanics unable to isolate cause without full engine teardown. Owners report mechanics dismissing noise as 'normal for these cars.'
Recalls/TSBs owners mention: No factory remedy. Dealerships acknowledge 'common problem' for these model years but deny recalls and warranty coverage. Owners report dealerships refusing to investigate, claiming vehicle makes 'normal noise.'
Synthesized from 88 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 12 most recent
The engine has been making humming noise which is getting louder with time
Coming home on september 25th 2020 at 1am on nj turnpike car started to tap very loudly and lost power at 65 MPH. Car has 83,659 miles. Car was towed to dealer on september 29th ,2020 dealer notified us on october 1st that the engine failed and it is not covered under any recall. Bought the car with 21,530 and was told we had the full factory warranty. Car has full service records, very…
Engine making clicking sound. Sounds exactly like the other engine issues Kia has recalled.
I was driving the vehicle at highway speed and it began to make a loud knocking noise, the engine increasingly became louder and I lost the ability to accelerate. There was a lot of traffic around me and my 9 year old son was in the car. We were scared. I barely got the vehicle to the breakdown lane where other cars and tractor trailers were passing us only feet away from us. The vehicle…
Simply started the car one cold morning, and the engine started knocking extremely bad, car no longer drivable with less than 80,000 miles similar to other Kia models, however the 2013 forte doesn't seem to be covered by recalls at this point.
Tl* the contact owns a 2013 Kia forte. While driving 70 MPH, the motor failed. There were no warning indicators illuminated. The vehicle was towed to deland Kia (2322 s woodland blvd, deland, fl 32720, (386) 734-7800) where it was diagnosed that the crank shaft failed and destroyed the engine. The vehicle was repaired. The manufacturer stated that they would not repair the vehicle because there…
Driving one day and check engine light came on. Car began to stutter and a billow of white smoke came from rear. Vehicle was disabled. Towed to Kia dealership. Dealership states they are doing a cylinder test. The car has been at the dealership since 08/14/2023. I have reached out to the dealer 5 times and have not gotten a response. Each time I have called I have been told that a service advisor…
Engine Knock, Engine failure and replacement. The car had to be towed to the dealer and they would not cover the repair because we were the second owner. We purchased the car with 67k miles on it and the engine failed 6 months after purchase.
There was a knocking noise coming from underneath the hood of my car and I could smell smoke. When I lifted the hood, I could see smoke arising from underneath the hood. Unsure why my car had begun smoking, I called for a tow truck to come get my car because I didn't know what was wrong and if it would catch fire. I had the tow company take my car to a mechanic for him to identify why my car…
The engine makes a loud rattling sound and vibration during initial start and initial acceleration, the said noise is much louder during cold engine start ups. The problem only started when the mileage reached around 70,000 miles. Maintenance has been religiously followed especially oil change. I even use factory engine oil filter.
Had engine trouble with your 2013 Kia Forte?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2013 Kia Forte?
It's a meaningful issue. 88 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $3,100.
At what mileage does the engine typically fail?
Across the 64 complaints that reported odometer mileage, most engine failures cluster between 66,917 and 117,000 miles, with the median around 90,000. A quarter of owners report trouble before 66,917; a quarter make it past 117,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
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.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2013/Kia/Forte.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.