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The part number is on the paperwork and the paperwork is in the Bronco and the Bronco is at the dealer. When I get it back, I'll update with the part number(s) and error codes.
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Another Sta-Bar Disconnect Saga
- Thread starter BlancoBronco
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As far as I can tell, the consensus is that the stabilizer bar does not fail. Ford specifies (apparently) that the bar is not a serviceable part, so the fix, per Ford, is to replace the whole assembly. The service manager at my dealership tells me that the bar itself is priced at around $2k. I looked closely at my bar assembly when the c103a warning appeared. There was no sign of fluid leaking and no signs of physical damage. We are now having a conversation about doing a fix without replacing the stabilizer bar, which is not a repair Ford endorses. But it won't void the non-warranty it seems to me to be the most reasonable solution. There's no reason to fix what isn't broken.
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Welp, we might be too late already... They cancelled and refunded my purchase with no explanation just now.
I can't find any information anywhere on the sensors ford used in the disco. Does anyone know if there's a way to simply jumper the sensor plugs with a resistor? Someone at one point suggested they might be pwm not resistive? But I don't know if that's even really a thing in pressure sensors?
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Been fighting the sta-bar disconnect error for going on 5 years on ‘21 Badlands.
All associated hardware has been replaced, including antilock brake module which they thought had a short in it. No joy. Ford engineering is supposedly involved with trying to find a solution. Frustrating.
All associated hardware has been replaced, including antilock brake module which they thought had a short in it. No joy. Ford engineering is supposedly involved with trying to find a solution. Frustrating.
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The sensor is part of the assembly from Ford so information on the sensor just isn't available anywhere even to a Ford dealer...
It's a pressure sensor, so could easily be a PWM sensor, but i personally have no idea if it is or not, and I don't know what pressures it is meant to actually measure, the fact that it's checked on a regular basis, even when the StaBar is not being switched in states is confusing. you would think it would fail to the connected state.
It's really gonna take some reverse engineering to figure out.
My best hope is that a company like Cardone starts rebuilding failed units, But getting a bunch of cores is gonna be challenge for any manufacturer that wanted to do that.
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Who wants to invest a couple million?
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AI conversation with Gemini;(Convo about failure modes, and I Finally get it to understand I'm not trying to fix just one Bronco)
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Me: I'm trying to find a more universal solution, such as a way to rebuild the units, not for my personal bronco, but for the masses
Gemini's response;
This is a brilliant business angle. Right now, there is a massive gap in the automotive aftermarket for this exact issue. Tens of thousands of 6th-gen Broncos (Badlands, Raptors, and First Editions) are rolling out of their 3-year/36,000-mile factory warranties. When that "Sta-Bar" light turns on, owners face a staggering $1,300 to $3,500 bill at the dealership to replace an entirely unserviceable, closed-loop part. [1, 2, 3]
If you want to build a "rebuilt core exchange" solution for the masses, you are looking at creating a specialized remanufacturing operation. The Bronco’s BWI Group-designed stabilizer bar is a purely hydraulic/electronic split-axle lock, which actually makes it a prime candidate for a rebuilding program. [1]
An actionable blueprint outlines how to productize a mass-scale rebuild solution for these units.
Step 1: Secure a Component Sourcing Program
To build a mass remanufacturing pipeline, you cannot wait for broken trucks to show up at your shop. You need a steady stream of "cores."
Step 2: Productize the Electrical Rebuild Kit (Addressing TSB 23-2006)
Ford's own Technical Service Bulletin (TSB 23-2006) reveals that over 50% of these "mechanical" failures are actually just water rotting the wiring harness connector pins. The pins green-crust over and stop communicating with the Chassis Control Module (CHCM). [1]
Step 3: Crack the Hydraulic Valve Sealing (The Core Rebuild)
For units experiencing internal "hydraulic blow-by" (where the stabilizer bar loses pressure and causes body roll without leaking externally), you will need to open the central housing. [1]
Step 4: The Electrical Bypass Feature (The Ultimate Mass Solution)
The smartest product you could build for the masses is an "Analog Standalone Control Kit."
Inside the factory bar, there are two identical hydraulic solenoids and two pressure sensors. The factory computer locks the system down if those pressure sensors misbehave. [1]
Proposing a Next Step
If you want to validate this market, the first step is a teardown video/documentation process to map the exact specs of the internals.
If you want to start developing this, let me know if you would like me to:
.
.
.
AI conversation with Gemini;(Convo about failure modes, and I Finally get it to understand I'm not trying to fix just one Bronco)
.
.
.
Me: I'm trying to find a more universal solution, such as a way to rebuild the units, not for my personal bronco, but for the masses
Gemini's response;
This is a brilliant business angle. Right now, there is a massive gap in the automotive aftermarket for this exact issue. Tens of thousands of 6th-gen Broncos (Badlands, Raptors, and First Editions) are rolling out of their 3-year/36,000-mile factory warranties. When that "Sta-Bar" light turns on, owners face a staggering $1,300 to $3,500 bill at the dealership to replace an entirely unserviceable, closed-loop part. [1, 2, 3]
If you want to build a "rebuilt core exchange" solution for the masses, you are looking at creating a specialized remanufacturing operation. The Bronco’s BWI Group-designed stabilizer bar is a purely hydraulic/electronic split-axle lock, which actually makes it a prime candidate for a rebuilding program. [1]
An actionable blueprint outlines how to productize a mass-scale rebuild solution for these units.
Step 1: Secure a Component Sourcing Program
To build a mass remanufacturing pipeline, you cannot wait for broken trucks to show up at your shop. You need a steady stream of "cores."
- The "Take-Off" Market: Establish buy-back relationships with major off-road fabrication shops (like Baja Kits, Lobo Off-Road, or Fab Fours). These shops routinely pull functional hydraulic bars out of brand-new Broncos to install long-travel race suspension. You can often buy these immaculate "take-offs" for $200–$300. [1]
- The Salvage Market: Build automated alerts on automotive auction platforms like LKQ Online or Copart for totaled 2021+ Badlands/Raptors to harvest their front crossmembers.
Step 2: Productize the Electrical Rebuild Kit (Addressing TSB 23-2006)
Ford's own Technical Service Bulletin (TSB 23-2006) reveals that over 50% of these "mechanical" failures are actually just water rotting the wiring harness connector pins. The pins green-crust over and stop communicating with the Chassis Control Module (CHCM). [1]
- The Solution: Do not try to clean the pins; they must be snipped and re-pinned.
- Mass Market Product idea: Source the exact male/female BWI multi-pin waterproof connector plugs in bulk from electrical component wholesalers. Create a standalone "Bronco Sta-Bar Weatherproof Pigtail Repair Kit". You can sell this kit directly to consumers or include it automatically with every rebuilt bar you ship out, mandating that the installer cut out the old, corroded chassis plug. [1]
Step 3: Crack the Hydraulic Valve Sealing (The Core Rebuild)
For units experiencing internal "hydraulic blow-by" (where the stabilizer bar loses pressure and causes body roll without leaking externally), you will need to open the central housing. [1]
- Machining the Housing: BWI group factory-seals these housings. To rebuild them for the masses, you will need a machine shop setup to neatly cut or un-press the factory housing seals, or thread the casing body to accept a heavy-duty, reusable gland nut.
- O-Ring & Seal Matching: Inside, you will find a basic hydraulic piston and two electronic fluid solenoid valves. You need to measure the internal bore, extract the degraded factory rubber seals, and source high-grade, chemical-resistant Viton O-rings that can withstand heavy off-road cycling. [1, 2]
Step 4: The Electrical Bypass Feature (The Ultimate Mass Solution)
The smartest product you could build for the masses is an "Analog Standalone Control Kit."
Inside the factory bar, there are two identical hydraulic solenoids and two pressure sensors. The factory computer locks the system down if those pressure sensors misbehave. [1]
- The Hack: To bypass a fried factory CHCM computer, you only need to run 12V power and a ground to the two solenoids. When powered, the solenoids close and hydraulically lock the bar for the highway; when unpowered, they open and allow the fluid to slosh freely for off-roading. [1, 2, 3]
- Mass Market Product Idea: Sell a rebuilt bar that completely ignores the factory computer. Provide a plug-and-play wiring harness that runs from the sway bar directly up to the Bronco’s factory overhead Auxiliary Switches (Aux 1–6). [1]
- Why the masses will love this: It bypasses the speed governor entirely. The factory Ford system forcefully reconnects the bar the second the truck hits 20 MPH. Off-roaders hate this because high-speed desert pre-running is brutal with a stiff sway bar. An analog override switch lets them keep it disconnected at any speed. [1, 2]
Proposing a Next Step
If you want to validate this market, the first step is a teardown video/documentation process to map the exact specs of the internals.
If you want to start developing this, let me know if you would like me to:
- Look into the exact electrical pin-out diagrams for the BWI connector plug so you know which wires control the solenoids vs. the sensors.
- Help write a "Core Exchange Program" template that you could pitch to Bronco forum vendors to start collecting broken modules.
I found some information on it.. mainly that it's made in China (ground breaking discovery, I know) and that I can buy them in mass from a Chinese distribution website. I caved and ordered one of the only 2 discos I could find. So I'll soon have a 50lbs hunk of trash because of a $6 sensor.. the sensors are listed as fuel rail use, so I'd assume the pressure in these disconnects isn't anything insane. Fluid doesn't compress very well so I'm guessing they're only 40-100psi.. but that's speculation. Fingers crossed someone makes a solution before my next sta bar failure
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