P0746 on Saab: How to Diagnose & Fix
Pressure Control Solenoid Performance/Stuck Off
1 Saab model · 1 documented issue · 1 critical · $120-$3,000 repair
P0746 on Saab by model: symptoms, diagnosis and fix
Second-gen 9-3 (2003-2011) Sentronic 5-speed automatic is the Aisin AF33-5. Develops harsh shifts, slipping, then total failure typically by 100,000-150,000 miles. Saab's "lifetime fill" claim was the prime contributor. Failure mode includes valve body wear and torque-converter shudder.
Common Symptoms
- harsh shifts
- slipping
- shudder
- delayed engagement
- limp mode
How to Fix
Drain-and-fill ATF every 40,000-50,000 miles with Aisin AFW+ / JWS3309 (~$120-$200 DIY — ~6 quarts come out per service). If shifts are already harsh, valve body rebuild ($800-$1,500) or full transmission swap with used unit ($1,500-$2,800). New AF33 transmissions are hard to source for Saab post-bankruptcy — used is the practical option.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Mobil ATF 3309 JWS 3309 automatic transmission fluid, six 1-quart bottles
Do not use solely because the car says Sentronic; confirm transmission tag/VIN and do not assume 2.8T AF40 coverage.
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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 on a Saab?
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. On Saab it is documented across 1 model: 9-3.
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 on a Saab?
Published repair estimates on Saab range from $120 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.
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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.