P0746: How to Diagnose & Fix — Pressure Control Solenoid Performance/Stuck Off
10 vehicles · 7 makes · $120-$6,500 repair
How to diagnose and fix P0746: 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.
Nissan Cube · 2009–2014
The Jatco CVT in the Cube is prone to premature failure, typically between 80,000-120,000 miles. Owners report shuddering during acceleration, delayed engagement from Park, and eventual complete transmission failure. Nissan extended the CVT warranty on some models to 10 years/120,000 miles, but many Cubes fall outside this coverage. The CVT belt stretches and the valve body develops issues, leading to erratic behavior before total failure.
Common Symptoms
- Shuddering or juddering during acceleration
- Delayed engagement when shifting from Park to Drive
- Whining or humming noise from transmission
- RPM surging without corresponding acceleration
- Vehicle hesitates or jerks at low speeds
How to Fix
Check if your VIN qualifies for Nissan's extended CVT warranty. If experiencing early symptoms (shuddering, slipping), have the CVT fluid changed with Nissan NS-2 fluid — this can extend life. Once failure occurs, replacement with a remanufactured CVT ($2,500-$4,000) is more cost-effective than a new unit. Avoid aggressive driving and ensure CVT fluid stays clean.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Nissan NS-2 CVT fluid 999MP-CSHNS2
Determine quantity and level procedure from current service information and verify VIN.
- Remanufactured RE0F08B CVT transmission GPTTNN4480BA36AA
Confirm VIN, transmission code, core terms, installer requirements, cooler service and programming/adaptation before order.
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
- TipChange CVT fluid every 30,000 miles with genuine Nissan NS-2 fluid to extend transmission life.
- WarningDo NOT flush the CVT — only drain and fill. Flushing can dislodge debris and cause immediate failure.
- TipIf the CVT fails, a remanufactured unit is typically half the cost of a dealer replacement and carries a warranty.
Sources for this issue (2)
Nissan NV200 · 2013–2021
The NV200's Jatco CVT transmission is particularly prone to failure when used for commercial delivery work, which is the vehicle's primary purpose. The constant stop-and-go driving and heavy loads accelerate CVT belt wear and valve body degradation. Many owners report failure between 60,000-100,000 miles. Symptoms include jerking during acceleration, delayed shifting, and eventually complete loss of drive.
Common Symptoms
- Jerking or shuddering during acceleration
- Delayed engagement from Park to Drive or Reverse
- Whining noise that increases with speed
- RPM fluctuation without speed change
- Complete loss of forward or reverse drive
How to Fix
Change CVT fluid every 25,000 miles with Nissan NS-2 CVT fluid — more frequently than the recommended interval given commercial use patterns. If shuddering begins, an immediate fluid change may extend life. When replacement is needed, a remanufactured CVT ($2,500-$3,500) is more economical than a dealer unit. Consider aftermarket CVT coolers for delivery vehicles.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Nissan NS-3 CVT automatic transmission fluid 999MP-CV0NS3
NV200 MR20DE CVT; confirm VIN, quantity, fluid-temperature level procedure and current service information.
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
- TipInstall an aftermarket CVT transmission cooler if you use the NV200 for delivery work — it significantly extends CVT life.
- WarningDo not exceed the NV200's payload capacity (1,480 lbs) — overloading dramatically shortens CVT lifespan.
- TipChange CVT fluid every 25,000 miles for commercial use rather than the 60,000-mile factory interval.
Sources for this issue (1)
Kia Forte · 2014–2018
The YD-generation Forte's conventional six-speed automatic (A6GF1 behind the 1.8/2.0 Nu, A6MF2 behind the 1.6T) wears the aluminium valve-body bores that carry the two pressure-reducing valves and the torque-converter-clutch control valve. As the bores egg out, solenoid feed pressure becomes unstable: line pressure control goes off, upshifts flare or momentarily neutral, the 6-4 kickdown lands as a bang, and torque-converter lockup applies harshly or shudders at light throttle around 40-50 mph. It sets TCC-circuit and pressure codes rather than a hard failure code. This is a hydraulic wear failure of the torque-converter automatic and must not be confused with the BD-generation IVT judder or the GT's 7-speed dry DCT shudder - three different transmissions with three different failure mechanisms.
Common Symptoms
- Hard bang on 6-4 kickdown
- Flare or momentary neutral between upshifts
- Shudder or vibration at light throttle 40-50 mph as lockup applies
- Delayed engagement into Drive or Reverse
- Erratic shift points and slipping under load
How to Fix
Start with a genuine Kia SP-IV fluid exchange (not a high-pressure flush) - degraded fluid accelerates bore wear and sometimes quiets an early shudder. The durable fix is valve-body service: either a remanufactured/OEM valve body, or a bore-repair kit (TransGo SK A6MF and equivalents) that re-sleeves the reducing-valve and TCC control-valve bores. A P0743 almost always means the TCC solenoid itself, which Kia addressed in a transmission TSB. If lockup shudder is severe and long-standing, replace the torque converter with the valve body or the shudder returns. No recall covers this.
Sources for this issue (4)
- TransGo A6MF1/2, A6GF1, A6LF1/2/3 Shift Kit valve body repair kit - documented failure modesarticle
- P0743 Torque Converter Clutch solenoid on A6GF1 - Kia TSB TSBTRA051R1 referencearticle
- 2014-2016 Kia Forte 1.6L Turbo A6MF2 Transmission: Problems and Identificationarticle
- Kia Forte Service Manual - Torque Converter Control Solenoid Valve (T/CON_VFS) Removalarticle
Cadillac XT6 · 2024–2024
Nissan Titan · 2020–2024
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P0746 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 P0746 mean?
P0746 stands for "Pressure Control Solenoid Performance/Stuck Off." P0746 means the transmission's pressure control solenoid 'A' is performing poorly or appears stuck in the off (low pressure) position. This solenoid regulates hydraulic line pressure that applies clutches and bands to make smooth, firm shifts; the TCM detects when commanded pressure changes aren't producing the expected response. A stuck-off condition typically means line pressure stays low. You may experience slipping, soft or delayed shifts, harsh engagement, overheating, or the transmission entering limp mode.
What are the most common causes of P0746?
The most common causes of P0746 are: Low, dirty, or degraded transmission fluid, Faulty pressure control / EPC solenoid, Clogged valve body passages or stuck valve, Wiring or connector fault at the solenoid, Internal transmission wear (worn clutches, leaking seals), Dirty or clogged transmission filter, Faulty transmission control module (less common). The specific cause varies by vehicle.
How much does it cost to fix P0746?
Repair costs for P0746 range from $120 to $6,500, depending on the vehicle and root cause.
Which vehicles are affected by P0746?
Au7o has documented P0746 across 10 vehicle models from 7 manufacturers: Buick, Cadillac, Kia, Nissan, Opel, Saab, Toyota.
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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.