P0776 on Ford: How to Diagnose & Fix
Pressure Control Solenoid B Performance/Stuck Off
2 Ford models · 2 documented issues · 1 critical · $150-$3,500 repair
P0776 on Ford by model: symptoms, diagnosis and fix
The 2011+ transverse Explorer switched to the 6F50/6F55 six-speed automatic, which is widely reported for a sluggish 0-5 mph roll-out followed by a harsh 'bump' or clunk, plus torque-converter shudder and occasional shift flare. Ford addressed the sluggish-acceleration-then-harsh-bump pattern on early-build 2011 Explorers with TSB 11-5-6, which calls for a new PCM/TCM calibration plus transmission valve body changes (separator-plate and check-ball revisions). Higher-mileage units can develop internal clutch/drum wear and lose 3rd/5th or reverse.
Common Symptoms
- Harsh bump/clunk from a rolling stop (0-5 mph)
- Sluggish or delayed acceleration then sudden engagement
- Torque-converter shudder/vibration at light throttle
- Shift flare or harsh/jerky 1-2 shifts
- High-mileage loss of 3rd, 5th or reverse
How to Fix
Have the dealer check for and apply the latest PCM/TCM calibration and any applicable bulletin (TSB 11-5-6 for early-build 2011 models) to fix the harsh-bump and sluggish-roll-out behavior. Service the fluid with the correct Mercon LV (do not mix fluids); for shudder, a proper fluid exchange or torque-converter service helps. Persistent slipping/loss of gears at high mileage indicates an internal rebuild.
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)
The 6F35 six-speed automatic is prone to harsh, banging, or delayed shifts (most often 2-3 and 3-4) plus a shudder/vibration when the torque converter clutch locks up at a steady 40-60 mph cruise. Root causes are worn valve-body separator-plate O-rings and bores that can no longer hold clean line pressure, clogged/worn shift solenoids, and torque-converter clutch degradation. Many units develop symptoms well before 100,000 miles. A 2021 class-action lawsuit (Gant v. Ford) accused Ford of concealing the 6F35 defect on the Fusion; the cited December 2024 report says the suit was dismissed.
Common Symptoms
- Hard/banging upshifts especially 2nd-to-3rd
- Shudder or vibration cruising at 40-60 mph
- Delayed engagement into drive or reverse
- Slipping or flaring between gears
- Transmission overheating warning
How to Fix
Start with a full fluid-and-filter service using the correct Mercon LV. For confirmed harsh shifts, reman or updated valve body with new solenoids is the durable fix; TCC shudder that survives a flush usually requires torque-converter replacement. Verify the transmission calibration is up to date (Ford released updated shift-strategy PCM/TCM reflashes). Severe internal wear = rebuild or reman transmission.
Sources for this issue (2)
P0776 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 P0776 mean on a Ford?
P0776 stands for "Pressure Control Solenoid B Performance/Stuck Off." This code means the transmission's Pressure Control Solenoid B is not performing correctly and is behaving as if stuck in the 'off' position. Pressure control solenoids regulate the hydraulic fluid pressure used to apply clutches and bands and to control shift quality, so when one underperforms the transmission may shift harshly, slip, flare between gears, or feel inconsistent. The transmission control module sets this code when the fluid pressure or response it measures doesn't match what it commanded from that solenoid. It generally indicates a hydraulic performance issue with the solenoid or its fluid circuit rather than just a wiring fault. On Ford it is documented across 2 models: Explorer, Fusion.
What are the most common causes of P0776?
The most common causes of P0776 are: Stuck or failed pressure control solenoid B, 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 wear or pressure loss, Faulty transmission control module. The specific cause varies by vehicle.
How much does it cost to fix P0776 on a Ford?
Published repair estimates on Ford range from $150 to $3,500 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.