P0751 on Kia: How to Diagnose & Fix
Shift Solenoid A Performance/Stuck Off
1 Kia model · 1 documented issue · 1 critical · $1,500-$3,500 repair
P0751 on Kia by model: symptoms, diagnosis and fix
The 5-speed automatic transmission in the Kia Amanti is prone to premature failure, particularly affecting the torque converter, forward clutch pack, and valve body. The transmission was shared with the Hyundai XG350 platform and struggles with the 3.5L V6 engine torque output. Symptoms progress from harsh shifting to slipping to complete failure, typically between 80,000-120,000 miles. Regular ATF changes can extend life, but the transmission design has inherent durability limitations.
Common Symptoms
- Harsh or delayed shifts
- Transmission slipping under acceleration
- Shudder during gear changes
- Loss of forward or reverse gears
- Check engine light with transmission codes
How to Fix
Sources for this issue (1)
P0751 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0751 mean on a Kia?
P0751 stands for "Shift Solenoid A Performance/Stuck Off." This code means the transmission control module commanded Shift Solenoid A (sometimes called Shift Solenoid 1) but the transmission did not respond properly, with the solenoid acting as though it is stuck 'off.' Shift solenoids are electrically operated valves that direct hydraulic fluid pressure to engage gears, so when one underperforms the transmission may shift harshly, slip, or fail to change gears at the right time. The computer sets this code when the measured gear ratio or shift behavior does not match the commanded state. It generally indicates a hydraulic or performance issue with the solenoid or the fluid circuit it controls inside the automatic transmission. On Kia it is documented across 1 model: Amanti.
What are the most common causes of P0751?
The most common causes of P0751 are: Stuck or failed Shift Solenoid A, Low, dirty, or degraded transmission fluid, Clogged solenoid screen or valve body passages, Sticking or worn valve body components, Wiring or connector problem at the solenoid, Internal transmission mechanical wear, Faulty transmission control module. The specific cause varies by vehicle.
How much does it cost to fix P0751 on a Kia?
Published repair estimates on Kia range from $1,500 to $3,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0751 on a different make?
View P0751 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.