P0775 on 2002-2010 Ford Explorer — Pressure Control Solenoid "B"
1 vehicles · 1 makes · $900-$3,500 repair
How to diagnose and fix P0775: most-reported vehicles
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Ford Explorer · 2002–2010
A very common failure on third- and fourth-generation Explorers with the 5R55W/5R55S automatic is wear in the overdrive and intermediate servo bores inside the transmission case. As the bores wear, hydraulic pressure leaks past the servo pistons, leading to 2-3 flare, 3-5 flare, slipping, harsh engagement, and delayed or missing reverse. This issue is widely documented in owner complaints, transmission repair communities, and Ford service literature addressing shift flare and servo-related repairs.
Common Symptoms
- 2-3 shift flare
- 3-5 shift flare
- delayed reverse engagement
- slipping during acceleration
- harsh shifting
- transmission warning light
- loss of reverse
How to Fix
Diagnosis usually includes confirming flare or slip during the 2-3 or 3-5 shift, checking line pressure, scanning for ratio/performance codes, and inspecting servo operation. A lasting repair typically requires installing oversized servo bore sleeves or a remanufactured valve body/case repair kit; fluid changes alone rarely fix worn bores once symptoms are established. If clutch damage has already occurred, a full rebuild may be necessary.
Sources for this issue (1)
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P0775 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 P0775 mean?
P0775 stands for "Pressure Control Solenoid "B"." This generic code indicates a malfunction in the circuit or operation of transmission pressure control solenoid B. Pressure control solenoids regulate the hydraulic line pressure used to apply clutches and shift gears, so a fault affects shift quality and timing. Symptoms can include harsh or slipping shifts, incorrect line pressure, or the transmission entering failsafe mode. Driving with abnormal line pressure can accelerate internal transmission wear.
What are the most common causes of P0775?
The most common causes of P0775 are: Faulty pressure control solenoid B, Dirty or low transmission fluid, Debris or contamination in the valve body, Wiring or connector problems in the solenoid circuit, Internal valve body wear, Mechanical transmission damage, Faulty transmission control module (less common). The specific cause varies by vehicle.
How much does it cost to fix P0775?
Repair costs for P0775 range from $900 to $3,500, depending on the vehicle and root cause.
Which vehicles are affected by P0775?
Au7o has documented P0775 across 1 vehicle models from 1 manufacturers: Ford.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.