P0751 on Hyundai: How to Diagnose & Fix
Shift Solenoid A Performance/Stuck Off
3 Hyundai models · 3 documented issues · 2 critical · $100-$3,000 repair
P0751 on Hyundai by model: symptoms, diagnosis and fix
The concentric slave cylinder (CSC) in manual-transmission Genesis Coupes fails prematurely, causing soft or spongy clutch pedal feel and eventually inability to disengage the clutch. The internal seal leaks, allowing fluid to contaminate the clutch disc. Replacement requires transmission removal, making it a labor-intensive repair.
Common Symptoms
- Soft or spongy clutch pedal
- Clutch pedal goes to floor
- Difficulty shifting into gear
- Clutch fluid level dropping
- Grinding when shifting
How to Fix
Replace the concentric slave cylinder (Hyundai part 41421-2C000) when symptoms first appear. Since the transmission must be removed, most owners also replace the clutch disc, pressure plate, and throw-out bearing at the same time. CSC alone is $100-150 for the part. Complete clutch kit with labor is $1,200-2,000.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Hyundai 41421-38000 concentric slave cylinderOEMHyundai 41421-38000
internal concentric slave-cylinder/release-bearing replacement after hydraulic diagnosis confirms leakage or failure Fitment/availability: 2010-2016 Hyundai Genesis Coupe with manual transmission, as sold and cataloged by the specialist …
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Owner tips & cautions
- TipWhen replacing the CSC, always do the full clutch kit at the same time since the transmission is already out - saves $600+ in labor later
- WarningDo not drive with a leaking CSC - clutch fluid will contaminate and destroy the clutch disc
Sources for this issue (2)
The 2006-2011 Hyundai Azera with the 5-speed or 6-speed automatic transmission develops shift hesitation, particularly a noticeable 1-2 shift delay under wide-open throttle when cold. The torque converter lockup clutch also develops shudder during light-throttle cruising at 35-55 mph. Hyundai issued a PCM recalibration procedure to address the cold-start hesitation. If the transmission fluid is not changed regularly, the shudder progressively worsens and can lead to torque converter failure or internal transmission damage. The Azera shares its transmission with the Sonata and Santa Fe of the same era.
Common Symptoms
- Delayed or hesitant 1-2 upshift, especially when cold
- Shudder or vibration at 35-55 mph during light throttle
- Harsh shift from 2nd to 3rd gear
- Transmission slipping sensation on acceleration
- Check engine light with transmission-related codes
- Hesitation as if transmission cannot decide whether to shift
How to Fix
Sources for this issue (3)
Like its Excel sibling, the Scoupe automatic transmission suffers from premature wear and failure. The same 4-speed automatic unit is used, with identical failure modes including clutch pack degradation, valve body issues, and torque converter problems. The Scoupe Turbo model puts additional stress on the already marginal transmission. Manual transmission models are far more reliable and the preferred choice among enthusiasts.
Common Symptoms
- Transmission slipping
- Harsh or delayed shifting
- Loss of gears
- Burnt fluid smell
- Shudder during shifts
How to Fix
Sources for this issue (2)
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 Hyundai?
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 Hyundai it is documented across 3 models: Genesis Coupe, Azera, Scoupe.
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 Hyundai?
Published repair estimates on Hyundai range from $100 to $3,000 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.