P0751 on Nissan: How to Diagnose & Fix
Shift Solenoid A Performance/Stuck Off
2 Nissan models · 2 documented issues · 1 critical · $200-$4,000 repair
P0751 on Nissan by model: symptoms, diagnosis and fix
The CD009 6-speed manual transmission can develop synchro wear, particularly affecting 2nd and 3rd gears. This results in grinding when shifting, especially under aggressive driving. The synchros are brass and wear faster than some competitors.
Common Symptoms
- Grinding when shifting into 2nd or 3rd
- Notchy shift feel
- Difficulty engaging gears when cold
- Gets worse over time
- Metallic debris in transmission fluid
How to Fix
Change transmission fluid regularly with Nissan Matic S or equivalent. Rev-match downshifts to reduce synchro wear. For aggressive driving, consider upgrading to OS Giken or other performance synchros during rebuild. Use proper shift technique and avoid forcing gears.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- OEM Nissan 370Z/G37 six-speed manual transmission service kit
2009-2020 370Z six-speed manual transmission; includes four quarts of Nissan MTF 75W-85 and one drain-plug washer. Not for the automatic transmission and not a cure for worn synchros.
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Owner tips & cautions
- TipChange transmission fluid regularly with Nissan Matic S or equivalent.
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
- TipSearch Nissan 370Z forums and owner groups for real-world experiences and DIY guides
- TipGet multiple quotes from independent mechanics - dealer prices can be 2-3x higher for the same repair
The 4-speed automatic transmission in the Nissan Stanza is prone to premature failure, particularly the torque converter and forward clutch packs. Symptoms include slipping, harsh shifts, and eventual loss of forward gears. The transmission was marginal for the KA24E engine output and deteriorates faster with aggressive driving or towing. Rebuilds are possible but finding a transmission specialist familiar with the Stanza-specific unit can be challenging.
Common Symptoms
- Transmission slipping under acceleration
- Harsh or delayed shifts
- Loss of forward gears
- Burnt transmission fluid smell
- 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 Nissan?
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 Nissan it is documented across 2 models: 370Z, Stanza.
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 Nissan?
Published repair estimates on Nissan range from $200 to $4,000 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.