P0751: How to Diagnose & Fix — Shift Solenoid A Performance/Stuck Off
46 vehicles · 17 makes · $5-$8,000 repair
How to diagnose and fix P0751: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Honda Odyssey · 1999–2004
Complete transmission failure due to faulty bearings and defective 3rd clutch components in 4-speed (1999-2001) and 5-speed (2002-2004) automatic transmissions. The 2002-2004 transmission can suddenly downshift from 5th to 2nd gear causing dangerous drivability issues. Honda recalled 1.1 million vehicles in 2004 and settled class-action lawsuit in 2006.
Common Symptoms
- Sudden harsh downshifts from 5th to 2nd gear
- Grinding or whining noises from transmission
- Slipping between gears
- Transmission overheating
- Complete failure to shift
- Metal fragments in transmission fluid
How to Fix
Complete transmission replacement or rebuild required. Honda extended the transmission warranty on 1999-2001 models to 7 years/100,000 miles, and a class-action settlement extended coverage for some of them to 93 months/109,000 miles. For 2002-2004 models with under 15,000 miles, dealers modified oil cooler return line; over 15,000 miles showing overheating damage received complete transmission replacement.
Owner tips & cautions
- WarningThis is the most serious issue affecting 2nd generation Odysseys - avoid 1999-2004 models unless transmission has been completely replaced
- TipCheck transmission fluid regularly for metal particles and discoloration indicating overheating
- TipRequest CarFax and maintenance records showing transmission replacement before purchasing used 1999-2004 Odyssey
- TipTransmission fluid should be changed every 30,000 miles on these models (not Honda's recommended 90,000) to prolong life
Sources for this issue (3)
MINI Cooper S · 2007–2020
Manual transmission MINI Cooper S models experience premature clutch and dual-mass flywheel (DMF) failure, often before 60k miles. The DMF springs weaken causing chatter and vibration, and the clutch disc wears prematurely due to the turbo engine's torque characteristics.
Common Symptoms
- Clutch chatter on engagement
- Vibration at idle in gear
- Grinding noise from clutch area
- Slipping clutch under boost
- Difficulty shifting
How to Fix
Replace clutch disc, pressure plate, throwout bearing, and dual-mass flywheel as a set. Some owners convert to a single-mass flywheel for durability, though this increases NVH.
Honda Pilot · 2016–2019
The ZF 9HP transmission produces rough and delayed shifting, loud noises during shifting, sudden harsh accelerations/decelerations, jerking/hesitating at all speeds, and loss of power. Problems stem from improper software calibration and electrical connection defects. Honda issued multiple TSBs but many issues persist until 2019 models.
Common Symptoms
- Rough, harsh, or delayed shifting
- Transmission jerking or hesitation between gears
- Loud clunking or banging noises during shifts
- Sudden loss of power or acceleration
- Torque converter judder between 20-60 mph
- Check engine light with transmission codes
How to Fix
Visit Honda dealer for software updates (TSBs address torque converter judder and shift quality). Transmission fluid changes using Honda ATF 3.1, ZF LifeGuard 9, or Pentosin ATF-9 at 60,000 miles then every 30,000 miles can improve shift quality. Severe cases may require transmission replacement under warranty or class action lawsuit claims.
Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Honda Genuine ATF Type 3.1, one quartOEMHonda 08268-P99-4EDAD
Factory-spec fluid branch after software, level, leak and symptom diagnosis shows service is required Fitment/availability: 2016-2019 U.S. Honda Pilot Touring or Elite equipped with the ZF 9-speed automatic; current 08268-P99-4EDAD is li…
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Owner tips & cautions
- TipFirst transmission fluid change at 60,000 miles, then every 30,000 miles thereafter - drain fluid hot after driving
- Tip2016-2017 models have the worst issues; 2019+ models have most problems resolved by Honda
- WarningUsing incorrect ATF fluid type can severely affect shift quality - only use Honda ATF 3.1, ZF LifeGuard 9, or Pentosin ATF-9
Sources for this issue (4)
Volvo XC90 · 2003–2005
Subaru WRX · 2015–2021
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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?
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.
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?
Repair costs for P0751 range from $5 to $8,000, depending on the vehicle and root cause.
Which vehicles are affected by P0751?
Au7o has documented P0751 across 46 vehicle models from 17 manufacturers: Audi, Buick, Chevrolet, Chrysler, Dodge, Ford, GMC, Honda, Hyundai, Jeep, Kia, Lincoln, MINI, Subaru, Toyota, Volkswagen, Volvo.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.