P0751 on Subaru: How to Diagnose & Fix
Shift Solenoid A Performance/Stuck Off
3 Subaru models · 3 documented issues · $150-$2,000 repair
P0751 on Subaru by model: symptoms, diagnosis and fix
The clutch throw-out bearing (release bearing) commonly develops a chirping noise that goes away when the clutch pedal is pressed. This is a known issue on WRX models and while the noise is annoying, it doesn't always indicate imminent failure. However, it should be monitored.
Common Symptoms
- Chirping or squeaking noise at idle
- Noise goes away when clutch pedal is depressed
- Noise returns when clutch pedal is released
- Sound may vary with temperature
- Grinding noise in severe cases
How to Fix
Replace throw-out bearing during clutch replacement. Consider upgrading to a better quality bearing. Some owners report improvement with different clutch fork pivot ball. Replace entire clutch kit when addressing this issue to avoid repeat labor costs.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Exedy FJK1001 OEM Replacement Clutch Kit
complete stock-style clutch service kit when teardown and clutch condition justify replacement Fitment/availability: 2015-2017 WRX 2.0-liter turbo 6-speed manual, 9-1/16-inch 24-spline push-type branch; not 2018-2021 Fitment/availability…
- Exedy FJK1008 OEM Replacement Clutch Kit
later complete stock-style clutch service kit when teardown and clutch condition justify replacement Fitment/availability: 2018-2021 WRX 6-speed manual, 240mm push-type; includes disc, pressure plate, release bearing, pilot bearing and a…
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
- TipGet a proper diagnosis before replacing parts - similar symptoms can have different causes
- TipSearch Subaru WRX 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
Sources for this issue (1)
Manual transmission BRZs commonly develop throwout bearing (release bearing) noise, typically a chirping, squealing, or grinding sound when the clutch pedal is pressed or released. The noise is most apparent in cold weather and often appears between 20,000-60,000 miles. While the noise itself is mostly a nuisance, a failed throwout bearing can cause clutch disengagement problems. Subaru has not issued a recall, but the issue is well-documented across both BRZ and Toyota 86 communities. Replacement requires transmission removal.
Common Symptoms
- Chirping or squealing noise when pressing clutch pedal
- Grinding noise at clutch engagement/disengagement point
- Noise worse in cold weather, may quiet when warm
- Difficulty shifting gears in advanced failure
- Clutch pedal vibration or pulsation
- Rattling at idle that goes away when clutch is pressed
How to Fix
Replace throwout bearing (Subaru 30502AA162 or Koyo equivalent). Since transmission removal is required (6-8 hours labor), replace the clutch disc, pressure plate, and pilot bearing at the same time. Exedy OEM replacement kit (FJK1005) includes all components. For track-use BRZs, upgrade to an Exedy Stage 1 kit (BRZ01H1). Apply Subaru grease to input shaft splines and throwout bearing guide tube during reassembly.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Exedy FJK1005 OE-replacement clutch kit
Not for second-generation FA24 BRZ, automatic transmission, or a track-power build requiring a separately engineered clutch/flywheel combination.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (1)
Subaru Service Bulletin 16-86-12 (12/11/2012) covers 2013 Tribecas with the EZ36D and 5-speed automatic, along with the 2013 Legacy and Outback. On these vehicles the AT OIL TEMP lamp comes on with one or more stored solenoid and pressure-control DTCs: P0751, P0756, P0761, P0766, P0771 or P1840-P1844. Subaru traced it to TCM logic. The fix went into production in mid-November 2012 starting at Tribeca VIN D*400781. Earlier 2013 Tribecas with TCM part numbers 30919AB190/191/192 are affected. The bulletin's applicability is written for low-mileage vehicles (6,000 miles or less). This lamp is separate from the torque-converter shudder that is already cataloged.
Common Symptoms
- AT OIL TEMP lamp on or flashing on the dash
- Stored transmission solenoid DTCs
How to Fix
Have a Subaru technician check the current bulletin and calibration. TSB 16-86-12 is expressly limited to low-mileage (6,000 miles or less) 2013 5AT vehicles with the listed codes. For an applicable Tribeca, it specifies TCM calibration 30919AB193, memory clear, ATF drain/refill with pan and magnet cleaning, then Dynamic Check Mode on a workshop lift—not an owner road-test cycle. If the symptom persists after that procedure, it specifies valve-body replacement. Its warranty labor allowance is 1.2 hours for the combined reprogramming and ATF flush; it is not a current retail quote or extended warranty. An older, higher-mileage vehicle needs diagnosis before applying this low-mileage remedy.
Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.
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 Subaru?
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 Subaru it is documented across 3 models: WRX, BRZ, Tribeca.
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 Subaru?
Published repair estimates on Subaru range from $150 to $2,000 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.